CN107337543B - A kind of slow-release fertilizer for saline-alkali soil and preparation method thereof - Google Patents
A kind of slow-release fertilizer for saline-alkali soil and preparation method thereof Download PDFInfo
- Publication number
- CN107337543B CN107337543B CN201710717255.3A CN201710717255A CN107337543B CN 107337543 B CN107337543 B CN 107337543B CN 201710717255 A CN201710717255 A CN 201710717255A CN 107337543 B CN107337543 B CN 107337543B
- Authority
- CN
- China
- Prior art keywords
- parts
- saline
- slow
- release fertilizer
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 49
- 239000003513 alkali Substances 0.000 title claims abstract description 42
- 239000002689 soil Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 229920002472 Starch Polymers 0.000 claims abstract description 22
- 235000019698 starch Nutrition 0.000 claims abstract description 22
- 239000008107 starch Substances 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 17
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 16
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 16
- 241001330002 Bambuseae Species 0.000 claims abstract description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 16
- QFHMNFAUXJAINK-UHFFFAOYSA-N [1-(carbamoylamino)-2-methylpropyl]urea Chemical compound NC(=O)NC(C(C)C)NC(N)=O QFHMNFAUXJAINK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011425 bamboo Substances 0.000 claims abstract description 16
- 239000003610 charcoal Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004327 boric acid Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract 2
- 239000010410 layer Substances 0.000 claims abstract 2
- 238000002156 mixing Methods 0.000 claims abstract 2
- 239000002344 surface layer Substances 0.000 claims abstract 2
- OXIKLRTYAYRAOE-CMDGGOBGSA-N (e)-3-(1-benzyl-3-pyridin-3-ylpyrazol-4-yl)prop-2-enoic acid Chemical group N1=C(C=2C=NC=CC=2)C(/C=C/C(=O)O)=CN1CC1=CC=CC=C1 OXIKLRTYAYRAOE-CMDGGOBGSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 abstract description 2
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- -1 Isobutylidene biurea Chemical compound 0.000 description 11
- 239000000203 mixture Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 244000138286 Sorghum saccharatum Species 0.000 description 5
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 230000004720 fertilization Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
Description
技术领域technical field
本发明属于控释肥技术领域，尤其涉及一种盐碱地缓释肥及其制备方法。The invention belongs to the technical field of controlled-release fertilizers, and in particular relates to a slow-release fertilizer for saline-alkali soils and a preparation method thereof.
背景技术Background technique
缓释肥料主要为缓效氮肥，也称长效氮肥，其在水中溶解度很低，但施入土壤后在化学反应和微生物作用下逐渐分解，缓慢释放氮素，满足植物在整个生育期内对氮素的需求，降低后期追肥成本，并可减少氮素的淋失、挥发和反硝化所引起的损失。异丁叉二脲以尿素和异丁醛为原料，在酸催化剂的情况下经缩合反应而制得，具有缓慢释放氮素的性能。因其溶解度低（仅为尿素的千分之一），改变了尿素易吸湿变质的特点，释放速度受温度的影响极小，容易调节和预测肥的释放速度，盐指数更是所有化学肥料中最低的，不会灼伤植物。此种缩合物还具有促进土壤形成团粒结构、防止沙化以及增加作物根系穿透力的性能。Slow-release fertilizers are mainly slow-acting nitrogen fertilizers, also known as long-acting nitrogen fertilizers, which have very low solubility in water, but gradually decompose under the action of chemical reactions and microorganisms after being applied to the soil, releasing nitrogen slowly to meet the needs of plants during the entire growth period. Nitrogen demand, reduce the cost of post-dressing fertilizer, and reduce the loss caused by nitrogen leaching, volatilization and denitrification. Isobutylidene biurea is prepared from urea and isobutyraldehyde by condensation reaction in the presence of an acid catalyst, and has the property of slowly releasing nitrogen. Because of its low solubility (only one thousandth of urea), it changes the characteristics of urea that is easy to absorb moisture and deteriorate. The release rate is very little affected by temperature, and it is easy to adjust and predict the release rate of fertilizers. The salt index is among all chemical fertilizers. The lowest, will not burn the plant. This kind of condensate also has the properties of promoting the formation of agglomerate structure in soil, preventing desertification and increasing the penetration of crop roots.
现有技术中，以异丁叉二脲为缓释骨架，采用肥料核心内部缓释技术制备缓释肥料。但是在盐碱化比较严重的地区，例如我国西北部，农作物生长困难，碱性土壤会抑制异丁叉二脲的水解，使异丁叉二脲的肥效难以释放。因此，有必要制备一种适用于碱性土壤的异丁叉二脲缓释肥。In the prior art, isobutylidene diurea is used as the slow-release skeleton, and the slow-release fertilizer is prepared by adopting the internal slow-release technology of the fertilizer core. However, in areas with severe salinization, such as northwestern my country, crops are difficult to grow, and the alkaline soil will inhibit the hydrolysis of isobutylidene diurea, making it difficult to release the fertilizer effect of isobutylidene diurea. Therefore, it is necessary to prepare an isobutylidene diurea slow-release fertilizer suitable for alkaline soil.
发明内容SUMMARY OF THE INVENTION
针对异丁叉二脲在盐碱地中肥效难以释放的问题，本发明提供了一种盐碱地缓释肥，其制备方法包括以下步骤：Aiming at the problem that isobutylidene diurea is difficult to release in saline-alkali soil, the invention provides a slow-release fertilizer for saline-alkali soil, the preparation method comprising the following steps:
（1）在硼酸颗粒表层包裹一层可溶性淀粉膜，得到包膜酸；(1) Wrap a layer of soluble starch film on the surface of boric acid particles to obtain coated acid;
（2）将重量份数为40-70份异丁叉二脲、30-50份竹炭粉、5-10份包膜酸、20-30份淀粉和20-30份水混合并搅拌均匀，并造粒成球状，烘干，得到盐碱地缓释肥。(2) The parts by weight are 40-70 parts of isobutylidene biurea, 30-50 parts of bamboo charcoal powder, 5-10 parts of coating acid, 20-30 parts of starch and 20-30 parts of water and mix and stir evenly, and Granulate into spherical shape, and dry to obtain slow-release fertilizer for saline-alkali land.
为调控该盐碱地缓释肥的缓释速率，所述包膜酸的可溶性淀粉膜厚度为0.2-1mm，颗粒直径为2-4mm。In order to regulate the slow-release rate of the slow-release fertilizer in the saline-alkali land, the soluble starch film thickness of the coated acid is 0.2-1 mm, and the particle diameter is 2-4 mm.
为方便该盐碱地缓释肥的播撒，所述盐碱地缓释肥的颗粒直径为4-8mm。In order to facilitate the spreading of the slow-release fertilizer in the saline-alkali land, the particle diameter of the slow-release fertilizer in the saline-alkali land is 4-8 mm.
为保证包膜酸的释放，所述竹炭粉的比表面积为300-320m2/Kg。In order to ensure the release of the coated acid, the specific surface area of the bamboo charcoal powder is 300-320m2/Kg.
可选地，步骤（2）中各组分的重量份数为：异丁叉二脲55份、竹炭粉40份、包膜酸 7份、淀粉25份和水25份。Optionally, the parts by weight of each component in step (2) are: 55 parts of isobutylidene biurea, 40 parts of bamboo charcoal powder, 7 parts of coating acid, 25 parts of starch and 25 parts of water.
本发明具有以下优点：The present invention has the following advantages:
（1）本发明所提供的盐碱地缓释肥将酸包膜，通过控制包膜的厚度，调控酸的释放速率进而控制异丁叉二脲的释肥周期。(1) The slow-release fertilizer for saline-alkali soil provided by the present invention encapsulates the acid, and controls the release rate of the acid by controlling the thickness of the envelope, thereby controlling the fertilizer release cycle of isobutylidene biurea.
（2）竹炭为多孔结构，耐酸侵蚀，在酸性环境下结构不发生破坏，具有良好的保水性，有效保证包膜酸的释放。(2) Bamboo charcoal has a porous structure and is resistant to acid erosion. The structure will not be damaged in an acidic environment. It has good water retention and effectively ensures the release of the coated acid.
（3）本发明提供的盐碱地缓释肥可根据植物生长的需求量，通过洒水量调控异丁叉二脲的施肥量。(3) The slow-release fertilizer for saline-alkali soil provided by the present invention can regulate the fertilization amount of isobutylidene biurea through the amount of watering according to the demand for plant growth.
附图说明Description of drawings
图1为本发明实施例1制备的盐碱地缓释肥的异丁叉二脲释放速率图；Fig. 1 is the isobutylidene diurea release rate diagram of the slow-release fertilizer for saline-alkali soil prepared in Example 1 of the present invention;
图2为本发明实施例2制备的盐碱地缓释肥的异丁叉二脲释放速率图；Fig. 2 is the isobutylidene diurea release rate diagram of the slow-release fertilizer for saline-alkali soil prepared by Example 2 of the present invention;
图3为本发明实施例3制备的盐碱地缓释肥的异丁叉二脲释放速率图；Fig. 3 is the isobutylidene diurea release rate diagram of the slow-release fertilizer for saline-alkali soil prepared by Example 3 of the present invention;
图4为本发明实施例4制备的盐碱地缓释肥的异丁叉二脲释放速率图。Fig. 4 is the isobutylidene diurea release rate diagram of the slow-release fertilizer for saline-alkali soil prepared in Example 4 of the present invention.
具体实施方式Detailed ways
下面结合实施例和附图对本发明做进一步说明，但本发明不受下述实施例的限制。The present invention will be further described below with reference to the embodiments and the accompanying drawings, but the present invention is not limited by the following embodiments.
实施例1Example 1
一种盐碱地缓释肥，其制备方法包括以下步骤：A slow-release fertilizer for saline-alkali soil, the preparation method of which comprises the following steps:
（1）在硼酸颗粒表层包裹一层可溶性淀粉膜，淀粉膜厚度为0.2mm，得到包膜碱，包膜碱的颗粒直径为2mm；(1) Wrap a layer of soluble starch film on the surface of boric acid particles, the thickness of the starch film is 0.2mm, to obtain the coated alkali, and the particle diameter of the coated alkali is 2mm;
（2）将重量份数为40份异丁叉二脲、30份竹炭粉、5份包膜酸、20份淀粉和20份水混合并搅拌均匀，并造粒成球状，40-70℃烘干，得到盐碱地缓释肥，盐碱地缓释肥的颗粒直径为4mm。(2) Mix 40 parts by weight of isobutylidene biurea, 30 parts of bamboo charcoal powder, 5 parts of coating acid, 20 parts of starch and 20 parts of water, stir evenly, and granulate into spherical shape, bake at 40-70 ℃. dry to obtain slow-release fertilizer for saline-alkali land, and the particle diameter of the slow-release fertilizer for saline-alkali land is 4 mm.
其中，上述制备方法中，竹炭粉的比表面积为300-320m2/Kg。Wherein, in the above-mentioned preparation method, the specific surface area of bamboo charcoal powder is 300-320m2/Kg.
实施例2Example 2
一种盐碱地缓释肥，其制备方法包括以下步骤：A slow-release fertilizer for saline-alkali soil, the preparation method of which comprises the following steps:
（1）在硼酸颗粒表层包裹一层可溶性淀粉膜，淀粉膜厚度为1mm，得到包膜碱，包膜碱的颗粒直径为4mm；(1) Wrap a layer of soluble starch film on the surface of boric acid particles, the thickness of the starch film is 1 mm, to obtain the coated alkali, and the particle diameter of the coated alkali is 4 mm;
（2）将重量份数为70份异丁叉二脲、50份竹炭粉、10份包膜酸、30份淀粉和30份水混合并搅拌均匀，并造粒成球状，40-70℃烘干，得到盐碱地缓释肥，盐碱地缓释肥的颗粒直径为8mm。(2) Mix 70 parts by weight of isobutylidene biurea, 50 parts of bamboo charcoal powder, 10 parts of coating acid, 30 parts of starch and 30 parts of water and stir evenly, and granulate into spherical shape, bake at 40-70 ℃. dry to obtain slow-release fertilizer for saline-alkali land, and the particle diameter of the slow-release fertilizer for saline-alkali land is 8 mm.
其中，上述制备方法中，竹炭粉的比表面积为300-320m2/Kg。Wherein, in the above-mentioned preparation method, the specific surface area of bamboo charcoal powder is 300-320m2/Kg.
实施例3Example 3
一种盐碱地缓释肥，其制备方法包括以下步骤：A slow-release fertilizer for saline-alkali soil, the preparation method of which comprises the following steps:
（1）在硼酸颗粒表层包裹一层可溶性淀粉膜，淀粉膜厚度为0.5mm，得到包膜碱，包膜碱的颗粒直径为3mm；(1) Wrap a layer of soluble starch film on the surface of boric acid particles, the thickness of the starch film is 0.5mm, to obtain the coated alkali, and the particle diameter of the coated alkali is 3mm;
（2）将重量份数为55份异丁叉二脲、40份竹炭粉、7份包膜酸、25份淀粉和25份水混合并搅拌均匀，并造粒成球状，40-70℃烘干，得到盐碱地缓释肥，盐碱地缓释肥的颗粒直径为5mm。(2) Mix 55 parts by weight of isobutylidene biurea, 40 parts of bamboo charcoal powder, 7 parts of coating acid, 25 parts of starch and 25 parts of water, mix and stir evenly, and granulate into spherical shape, bake at 40-70 ℃. dry to obtain slow-release fertilizer for saline-alkali land, and the particle diameter of slow-release fertilizer for saline-alkali land is 5 mm.
其中，上述制备方法中，竹炭粉的比表面积为300-320m2/Kg。Wherein, in the above-mentioned preparation method, the specific surface area of bamboo charcoal powder is 300-320m2/Kg.
实施例4Example 4
一种盐碱地缓释肥，其制备方法包括以下步骤：A slow-release fertilizer for saline-alkali soil, the preparation method of which comprises the following steps:
（1）在硼酸颗粒表层包裹一层可溶性淀粉膜，淀粉膜厚度为0.8mm，得到包膜碱，包膜碱的颗粒直径为4mm；(1) Wrap a layer of soluble starch film on the surface of the boric acid particles, the thickness of the starch film is 0.8 mm, to obtain the coated alkali, and the particle diameter of the coated alkali is 4 mm;
（2）将重量份数为60份异丁叉二脲、45份竹炭粉、8份包膜酸、20份淀粉和25份水混合并搅拌均匀，并造粒成球状，40-70℃烘干，得到盐碱地缓释肥，盐碱地缓释肥的颗粒直径为7mm。(2) Mix 60 parts by weight of isobutylidene biurea, 45 parts of bamboo charcoal powder, 8 parts of coating acid, 20 parts of starch and 25 parts of water, mix and stir evenly, and granulate into spherical shape, bake at 40-70 ℃. dry to obtain slow-release fertilizer for saline-alkali land, and the particle diameter of slow-release fertilizer for saline-alkali land is 7 mm.
其中，上述制备方法中，竹炭粉的比表面积为300-320m2/Kg。Wherein, in the above-mentioned preparation method, the specific surface area of bamboo charcoal powder is 300-320m2/Kg.
通过图1至4所示，实施例1至4的盐碱地缓释肥的异丁叉二脲可持续平稳释放80天，缓释效果良好。As shown in Figures 1 to 4, the isobutylidene diurea of the slow-release fertilizers in the saline-alkali soil of Examples 1 to 4 can be released stably for 80 days, and the slow-release effect is good.
实施例试验：甜高粱地肥效Example test: Fertilizer effect of sweet sorghum
试验地点：甘肃省武威市古浪县。Test site: Gulang County, Wuwei City, Gansu Province.
试验时间：2016年5月至10月。Test period: May to October 2016.
试验品种：雅津401号甜高粱。Tested variety: Yajin 401 sweet sorghum.
对比例：异丁叉二脲。Comparative example: isobutylidene biurea.
在5块盐碱地（pH=7.8-8.5）播种相同的品种的甜高粱种子。按照当地农民的施肥习惯和施肥用量，分别对5块甜高粱地进行施肥，分别施以实施例1-3和对比例的肥料。其他管理措施均按照当地农民措施常规进行。Sweet sorghum seeds of the same variety were sown in 5 saline-alkaline plots (pH=7.8-8.5). According to the fertilization habits and fertilization dosage of local farmers, 5 sweet sorghum fields were fertilized respectively, and the fertilizers of Examples 1-3 and Comparative Examples were respectively applied. Other management measures are carried out in accordance with the routine measures of local farmers.
表1 甜高粱生长效果Table 1 Growth effect of sweet sorghum
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710717255.3A CN107337543B (en) | 2017-08-21 | 2017-08-21 | A kind of slow-release fertilizer for saline-alkali soil and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710717255.3A CN107337543B (en) | 2017-08-21 | 2017-08-21 | A kind of slow-release fertilizer for saline-alkali soil and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107337543A CN107337543A (en) | 2017-11-10 |
| CN107337543B true CN107337543B (en) | 2020-11-24 |
Family
ID=60215266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710717255.3A Active CN107337543B (en) | 2017-08-21 | 2017-08-21 | A kind of slow-release fertilizer for saline-alkali soil and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107337543B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109042730A (en) * | 2018-08-07 | 2018-12-21 | 重庆聚立信生物工程有限公司 | Overlay film boric acid and its application in preparation fungi Roach killer |
| CN109970379B (en) * | 2019-04-09 | 2021-09-21 | 济南大学 | Degradable aggregate with fertilizer efficiency slow-release performance and preparation method thereof |
| CN109987916B (en) * | 2019-04-09 | 2021-09-21 | 济南大学 | Degradable phosphate cement-based aggregate with fertilizer efficiency slow-release performance and preparation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3925053A (en) * | 1973-05-14 | 1975-12-09 | Swift Chemical Company | Slow acting fertilizer |
| AU2003233412B2 (en) * | 2002-03-26 | 2008-12-11 | Koch Agronomic Services, Llc | Slow release nitrogen fertilizer |
| CN103880554B (en) * | 2014-03-29 | 2016-06-08 | 山东茂施生态肥料有限公司 | A kind of take IBDU as slow release fertilizer and its preparation method of coating material |
| CN104447137A (en) * | 2014-12-15 | 2015-03-25 | 西南石油大学 | Method for preparing dual-controlled release fertilizer |
| CN104692950A (en) * | 2015-03-17 | 2015-06-10 | 山东农业大学 | Preparation method of biological carbon sustained-release compound fertilizer |
| CN105053557B (en) * | 2015-07-17 | 2018-11-30 | 无锡华诺威动物保健品有限公司 | A kind of coating preparation method of phosphoric acid micropore acidulant particulate material |
| CN106083342A (en) * | 2016-06-16 | 2016-11-09 | 广东大众农业科技股份有限公司 | A kind of high-efficiency environment friendly inorganic fertilizer based on biomass carbon and production technology thereof |
-
2017
- 2017-08-21 CN CN201710717255.3A patent/CN107337543B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| Nitrogen release from isobutylidene diurea: soil pH and fertilizer particle size effects;HUGHES,TD等;《AGRONOMY JOURNAL》;19761231;第68卷(第1期);第103-106页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107337543A (en) | 2017-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103664388B (en) | Charcoal-based organic fertilizer and preparation method thereof | |
| CN105061054B (en) | A kind of coating slow-release or control-release fertilizer and its manufacture method | |
| CN107417460A (en) | Grain and preparation method thereof is given birth in a kind of plant for Alpine Grasslands | |
| CN107337543B (en) | A kind of slow-release fertilizer for saline-alkali soil and preparation method thereof | |
| CN104973959A (en) | Sightseeing greenhouse succulents improvement matrix and preparation method thereof | |
| CN100404475C (en) | A special controlled-release compound fertilizer for double-cropping early rice and late rice and its preparation method | |
| CN104761395A (en) | Carbon-based fertilizer for improving cold resistance capability of shiny-leaved yellowhorn and preparation method thereof | |
| CN105294356A (en) | Carbon-based saline-alkali soil improver as well as preparation method and application thereof | |
| CN105294324A (en) | Novel carbon-based compound fertilizer and preparation method thereof | |
| CN102150502A (en) | Method for efficiently and accurately spreading slow/controlled release nitrogen fertilizer for wheat | |
| CN107986885A (en) | A kind of coated compound fertilizer | |
| CN105016846B (en) | A kind of sustained release fertilizer efficiency moisturizing fertilizer | |
| CN114902930B (en) | Preparation method of biochar soilless culture substrate | |
| CN101550343B (en) | A chemical conditioner for improving red soil dry land | |
| CN107382510B (en) | A kind of controllable slow-release fertilizer and preparation method thereof | |
| CN110330386A (en) | A kind of compound fertilizer and its manufacturing method | |
| CN110483214B (en) | A kind of organic-inorganic compound fertilizer and production method thereof | |
| CN113912453A (en) | Synergistic phosphate fertilizer suitable for alkaline soil and preparation method and application thereof | |
| CN116283421A (en) | Controlled release fertilizer composition based on modified biochar | |
| CN112624862B (en) | Efficient and stable green ammonium nitrogen fertilizer special for brown soil and preparation method thereof | |
| CN110591725A (en) | A kind of acid soil improvement additive and its preparation method and application | |
| KR102598606B1 (en) | Manufacturing method of slow-releasing fertilizer for rice farm using black carbon and the same manufactured thereby | |
| CN120757419A (en) | Preparation method and application of slow-release fertilizer with water-retaining and drought-resistant functions | |
| CN117164411A (en) | Sustained and controlled release fertilizer and method for loading same on seedling raising tray | |
| CN120622980A (en) | A water-retaining controlled-release ecological compound fertilizer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Xiaochuan Inventor after: Gong Chenchen Inventor after: Jin Minghui Inventor after: Zhou Jingping Inventor after: Lu Lingchao Inventor after: Cheng Xin Inventor before: Gong Chenchen Inventor before: Jin Minghui Inventor before: Zhou Jingping Inventor before: Lu Lingchao Inventor before: Cheng Xin |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240620 Address after: 618412 No. 8, Lantian Avenue, North District, economic development zone, Shifang City, Deyang City, Sichuan Province Patentee after: Deyang Jiehua Agricultural Science and Technology Research Co.,Ltd. Country or region after: China Address before: 250022 No. 336, South Xin Zhuang West Road, Shizhong District, Ji'nan, Shandong Patentee before: University of Jinan Country or region before: China |
|
| TR01 | Transfer of patent right |