CN110041141A - A kind of mixed aid promoting organic nitrogenous fertilizer fertilizer efficiency - Google Patents
A kind of mixed aid promoting organic nitrogenous fertilizer fertilizer efficiency Download PDFInfo
- Publication number
- CN110041141A CN110041141A CN201910463944.5A CN201910463944A CN110041141A CN 110041141 A CN110041141 A CN 110041141A CN 201910463944 A CN201910463944 A CN 201910463944A CN 110041141 A CN110041141 A CN 110041141A
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- fertilizer
- organic
- mixed aid
- ammonium
- 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.)
- Pending
Links
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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- 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
Abstract
The present invention relates to a kind of mixed aids for promoting organic nitrogenous fertilizer fertilizer efficiency.Mixed aid in the present invention specifically includes dimethyl sulfoxide (DMSO), normal-butyl thiophosphoryl triamine (NBPT), organic acid and water.In the present invention, dimethyl sulfoxide can not only dissolve normal-butyl thiophosphoryl triamine, and can absorb nitrogen dioxide and sulfur dioxide in ambient enviroment, generate ammonium salt with the ammonium ion that organic nitrogen decomposes, avoid the loss of nitrogen.Normal-butyl thiophosphoryl triamine can effectively control the decomposition rate that organic nitrogen is converted into inorganic ammonium nitrogen.Organic acid can be improved the efficiency that inorganic nitrogen is absorbed by plants.Therefore the present invention in it is a kind of promoted organic nitrogenous fertilizer fertilizer efficiency mixed aid can from control organic nitrogen nitrogen decomposition rate, the inorganic ammonium nitrogen decomposed forms stable ammonium salts, absorbs the inorganic nitrogen in environment and promotes plant to the utilization rate and fertilizer efficiency of promotion organic nitrogenous fertilizer comprehensive in the absorption of inorganic nitrogen.
Description
Technical field
The present invention relates to the interleaving techniques fields of chemicals and agricultural fertilizer auxiliary agent, and in particular to a kind of promotion organic nitrogenous fertilizer
The mixed aid of fertilizer efficiency promotes plant to the absorption rate of nitrogen.
Background technique
In existing nitrogenous fertilizer, one is the quick inorganic nitrogen fertilizer such as selection ammonium nitrate, but due to the shakiness of ammonium nitrate
Qualitative, inorganic nitrate nitrogen and ammonium nitrogen in fertilizer are more to be evaporate into atmosphere with ammonia, nitrogen oxides, not only plant pair its
Utilizing status is bad, and pollutes environment, increases greenhouse effects.In addition, nitrate nitrogen is easy to lose in the soil and in the soil
Accumulation, causes soil pH to decline, leads to soil hardening.Another kind, selects urea etc. as organic nitrogen nitrogenous fertilizer, provides nitrogen to plant
Element, urea are to first pass through urase to be degraded to inorganic ammonium nitrogen, then absorbed by plant as organic nitrogenous fertilizer.Organic nitrogenous fertilizer is contained due to nitrogen
Amount is higher, and fertilizer efficiency length is liked by grower, and occupation rate of market is high.But urase decomposing urea is too fast, and plant has little time to absorb
Ammonium nitrogen will also result in biggish fertilizer efficiency loss, and at the same time, the nitrobacteria in soil relatively rapid can convert ammonium nitrogen
For nitrate nitrogen.Equally cause the ammonium nitrate inorganic nitrogeneous fertilizer problem.Currently, common means are by the way that urease inhibitor is added
The loss that fertilizer efficiency is avoided with nitrification inhibitor includes urease inhibitor N- first such as the Chinese patent of Publication No. 1781879A
Base -2-Pyrrolidone and nitrification inhibitor dicyandiamide, a degree of can avoid the loss of nitrogen, but nitrification inhibitor
Using will affect nitrobacteria group first, so that the degradation for influencing the organic matter in soil absorbs；Secondly, being inhibited using nitrification
Agent will lead to soil pH raising, influence the absorption of the nutrient element of pH sensitivity indirectly.Therefore, based on the absorption benefit to organic nitrogen
With, and the adverse effect to soil environment is avoided, the invention patent is free of the mixed aid of nitrification inhibitor by preparing, and leads to
Addition NBPT is crossed, the decomposition rate of organic nitrogen nitrogen is controlled, DMSO can absorb the nitrogen oxides in environment, make organic nitrogen
The inorganic ammonium nitrogen that fertilizer slowly resolves into forms stable ammonium salt, and water energy adjusts the content of each component and to the molten of organic nitrogenous fertilizer
Xie Du, and organic acid can promote being absorbed and utilized for inorganic nitrogen (nitrate nitrogen, ammonium nitrogen and its ammonium salt), and comprehensive promotion is organic
The fertilizer efficiency of nitrogenous fertilizer.
Summary of the invention
In view of this, it is an object of that present invention to provide a kind of mixed aids for promoting organic nitrogenous fertilizer fertilizer efficiency.
To achieve the above object, technical solution of the present invention provides a kind of mixed aid for promoting organic nitrogenous fertilizer fertilizer efficiency, described
Mixed aid by DMSO, NBPT, organic acid, water composition, the mass parts of each raw material are as follows:
Wherein, the DMSO concentration is 99.5% or more.
The NBPT content allows to have micro potassium, calcium, sodium, ferrous metal in NBPT powder 98% or more.
The organic acid is one or more of histidine, alanine, oxalic acid.
The water is the water without chlorine.
The advantages and beneficial effects of the present invention are: in the present invention, a kind of mixed aid promoting organic nitrogenous fertilizer fertilizer efficiency,
NBPT therein can control the decomposition rate that organic nitrogen nitrogen transformation is inorganic ammonium nitrogen, avoid converting too fast reduction fertilizer efficiency
It absorbs；DMSO can not only dissolve NBPT, and can also nitrogen oxides in the environment such as absorbent earth earth and air and nitrification make
With the nitrate nitrogen of generation, and the ammonium nitrogen being broken down into organic nitrogen forms ammonium salt, increases the stability of nitrogen and avoids losing；
Water energy without chlorine adjusts the content of each component and the solubility to organic nitrogenous fertilizer, and does not destroy the constitutive property in fertilizer；
Organic acid can promote the absorption of inorganic nitrogen (nitrate nitrogen, ammonium nitrogen and its ammonium salt), improve utilization efficiency.In addition, in organic acid
The carboxyl that the imidazole group that histidine contains, alanine and oxalic acid contain can with the metallic ion coordinations such as iron, be complexed fertilizer and
Microelement (cationic) around soil promotes fertilizer each component and the utilization rate to soil.Therefore, in the present invention
Mixed aid can convert stability from the decomposition of organic nitrogenous fertilizer, the utilization rate of comprehensive raising nitrogenous fertilizer in absorbability.And
And avoid addition nitrification inhibitor and its influence to soil environment.
Specific embodiment
Comparative example 1:
The radish that 20 square meters are planted on the plot chosen, does not apply fertilizer, and when plantation was to 20 days and 40 days, detection is native
The pH value of earth, it can be estimated that soil ammonium-state content；The content for detecting plant leaf Determination of Chlorophyll a, can reflect plant
To the absorptivity of nitrogen；It measures ground plant height (average value), the length (average value) of radish may indicate that plant normally gives birth to
Long state.
Comparative example 2:
Apply the urea that weight is 2kg into soil, and plant the radish of 20 square meters, is detected when planting 20 days and 40 days
The pH value of soil, it can be estimated that soil ammonium-state content；The content for detecting plant leaf Determination of Chlorophyll a, can reflect plant
Absorptivity of the strain to nitrogen；It measures ground plant height (average value), the length (average value) of radish, may indicate that plant pair fertilizer
The comprehensive utilization and absorbability of material, thus when reflecting no mixed aid, the utilization power of plant pair fertilizer.
Comparative example 3:
This comparative example provides a kind of mixed aid for promoting organic nitrogenous fertilizer fertilizer efficiency, specifically:
The mixed aid is made of DMSO, organic acid and water,
Wherein, the DMSO in the mixed aid adds 200g；
Organic acid in the mixed aid is oxalic acid, adds 20g；
Water in the mixed aid is the water without chlorine, adds 2kg；
By above-mentioned parts by weight by each component after mixing, with weight be 2kg urea mixed, be applied to dish
Ground, and the radish of 20 square meters is planted, the pH value of soil is detected when planting 20 days and 40 days, it can be estimated that soil ammonium-state contains
Amount；The content for detecting plant leaf Determination of Chlorophyll a, can reflect the absorptivity of plant pair nitrogen；Measure ground plant height
(average value), the length (average value) of radish, may indicate that the comprehensive utilization and absorbability of plant pair fertilizer, to react
The effect played when mixed aid utilizes fertilizer to plant out.
Comparative example 4:
A kind of mixed aid for promoting organic nitrogenous fertilizer fertilizer efficiency is present embodiments provided, specifically:
The mixed aid is made of DMSO, NBPT and water,
Wherein, the DMSO in the mixed aid adds 200g；
NBPT in the mixed aid adds 20g；
Water in the mixed aid is the water without chlorine, adds 2kg；
By above-mentioned parts by weight by each component after mixing, with weight be 2kg urea mixed, be applied to dish
Ground, and the radish of 20 square meters is planted, the pH value of soil is detected when planting 20 days and 40 days, it can be estimated that soil ammonium-state contains
Amount；The content for detecting plant leaf Determination of Chlorophyll a, can reflect the absorptivity of plant pair nitrogen；Measure ground plant height
(average value), the length (average value) of radish, may indicate that the comprehensive utilization and absorbability of plant pair fertilizer, to react
The effect played when mixed aid utilizes fertilizer to plant out.
Embodiment 1:
A kind of mixed aid for promoting organic nitrogenous fertilizer fertilizer efficiency is present embodiments provided, specifically:
The mixed aid is made of DMSO, NBPT, organic acid and water,
Wherein, the DMSO in the mixed aid adds 200g；
NBPT in the mixed aid adds 20g；
Organic acid in the mixed aid is the histidine in amino acid, adds 20g；
Water in the mixed aid is the water without chlorine, adds 2kg；
By above-mentioned parts by weight by each component after mixing, with weight be 2kg urea mixed, be applied to dish
Ground, and the radish of 20 square meters is planted, the pH value of soil is detected when planting 20 days and 40 days, it can be estimated that soil ammonium-state contains
Amount；The content for detecting plant leaf Determination of Chlorophyll a, can reflect the absorptivity of plant pair nitrogen；Measure ground plant height
(average value), the length (average value) of radish, may indicate that the comprehensive utilization and absorbability of plant pair fertilizer, to react
The effect played when mixed aid utilizes fertilizer to plant out.
Embodiment 2:
A kind of mixed aid for promoting organic nitrogenous fertilizer fertilizer efficiency is present embodiments provided, specifically:
The mixed aid is made of DMSO, NBPT, organic acid and water,
Wherein, the DMSO in the mixed aid adds 200g；
NBPT in the mixed aid adds 20g；
Organic acid in the mixed aid is the alanine in amino acid, adds 20g；
Water in the mixed aid is the water without chlorine, adds 2kg；
By above-mentioned parts by weight by each component after mixing, with weight be 2kg urea mixed, be applied to dish
Ground, and the radish of 20 square meters is planted, the pH value of soil is detected when planting 20 days and 40 days, it can be estimated that soil ammonium-state contains
Amount；The content for detecting plant leaf Determination of Chlorophyll a, can reflect the absorptivity of plant pair nitrogen；Measure ground plant height
(average value), the length (average value) of radish, may indicate that the comprehensive utilization and absorbability of plant pair fertilizer, to react
The effect played when mixed aid utilizes fertilizer to plant out.
Embodiment 3:
A kind of mixed aid for promoting organic nitrogenous fertilizer fertilizer efficiency is present embodiments provided, specifically:
The mixed aid is made of DMSO, NBPT, organic acid and water,
Wherein, the DMSO in the mixed aid adds 200g；
NBPT in the mixed aid adds 20g；
Organic acid in the mixed aid is oxalic acid, adds 20g；
Water in the mixed aid is the water without chlorine, adds 2kg；
By above-mentioned parts by weight by each component after mixing, with weight be 2kg urea mixed, be applied to dish
Ground, and the radish of 20 square meters is planted, the pH value of soil is detected when planting 20 days and 40 days, it can be estimated that soil ammonium-state contains
Amount；The content for detecting plant leaf Determination of Chlorophyll a, can reflect the absorptivity of plant pair nitrogen；Measure ground plant height
(average value), the length (average value) of radish, may indicate that the comprehensive utilization and absorbability of plant pair fertilizer, to react
The effect played when mixed aid utilizes fertilizer to plant out.
Table 1 is the effect that mixed aid utilizes fertilizer efficiency to radish in comparative example and embodiment
PH value comprising soil at radish planting 20 days and 40 days, to assess soil ammonium-state content；In plant leaf
The content of chlorophyll a (sets the content value of the chlorophyll a at 20 days of comparative example 1 as 1, the chlorophyll a of remaining group and number of days contains
Amount is the ratio with the Chlorophyll-a Content at 20 days of comparative example 1) absorptivity of plant pair nitrogen can be reflected；Measure ground
Plant height (average value), the length (average value) of radish, to show the comprehensive utilization and absorbability of plant pair fertilizer, from
And reflect the effect played when mixed aid utilizes fertilizer to plant.
Claims (6)
1. a kind of mixed aid for promoting organic nitrogenous fertilizer fertilizer efficiency, which is characterized in that comprise the following components in parts by weight:
2. promoting the mixed aid of organic nitrogenous fertilizer fertilizer efficiency according to claim 1, which is characterized in that the DMSO concentration exists
99.5% or more.
3. promoting the mixed aid of organic nitrogenous fertilizer fertilizer efficiency according to claim 1, which is characterized in that the NBPT content exists
98% or more.
4. promoting the mixed aid of organic nitrogenous fertilizer fertilizer efficiency according to claim 1, which is characterized in that in the NBPT powder
There are micro potassium, calcium, sodium or ferrous metal.
5. promoting the mixed aid of organic nitrogenous fertilizer fertilizer efficiency according to claim 1, which is characterized in that the organic acid is ammonia
Base acid and/or oxalic acid.
6. promoting the mixed aid of organic nitrogenous fertilizer fertilizer efficiency according to claim 5, which is characterized in that the amino acid is group
Propylhomoserin and/or alanine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910463944.5A CN110041141A (en) | 2019-05-30 | 2019-05-30 | A kind of mixed aid promoting organic nitrogenous fertilizer fertilizer efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910463944.5A CN110041141A (en) | 2019-05-30 | 2019-05-30 | A kind of mixed aid promoting organic nitrogenous fertilizer fertilizer efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110041141A true CN110041141A (en) | 2019-07-23 |
Family
ID=67284182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910463944.5A Pending CN110041141A (en) | 2019-05-30 | 2019-05-30 | A kind of mixed aid promoting organic nitrogenous fertilizer fertilizer efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110041141A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370753A (en) * | 2006-01-12 | 2009-02-18 | 阿格罗泰恩国际股份有限公司 | Additive containing N-(n-butyl) thiophosphoric triamide for urea-based fertilizer |
| CN101450880A (en) * | 2007-12-07 | 2009-06-10 | 中国科学院沈阳应用生态研究所 | Nitrogen fertilizer compound synergist and preparation method |
| US20110314883A1 (en) * | 2009-02-17 | 2011-12-29 | Whitehurst Associates, Inc. | Buffered amino alcohol solutions of N-(n-butyl)thiophosphoric triamide (NBPT) and urea fertilizers using such solutions as urease inhibitors |
| CN104045465A (en) * | 2014-07-04 | 2014-09-17 | 上海艾拜克国际贸易有限公司 | Solution system containing n-butyl sulfo-phosphoric triamide and application thereof |
| WO2015020967A1 (en) * | 2013-08-06 | 2015-02-12 | Weyerhaeuser Nr Company | Nbpt solutions for preparing urease inhibited urea fertilizers prepared from n-substituted morpholines |
| CN104781265A (en) * | 2012-10-01 | 2015-07-15 | 加里·戴维·麦克奈特 | Improved liquid formulations of urease inhibitors for fertilizers |
| WO2015161195A1 (en) * | 2014-04-17 | 2015-10-22 | Mcknight Gary David | Compositions and methods comprising ntrification inhibitors containing a mixture of protic and aprotic solvent systems |
| CN106946632A (en) * | 2017-05-24 | 2017-07-14 | 浙江今晖新材料股份有限公司 | A kind of compound fertilizer synergistic agent and its preparation and application |
| CN107207375A (en) * | 2014-09-30 | 2017-09-26 | 罗地亚经营管理公司 | For D2EHDTPA triamide or the solvent and correlation technique of dicyandiamide solution |
| US20180022662A1 (en) * | 2015-07-24 | 2018-01-25 | Koch Agronomic Services, Llc | Composition containing n-(n-butyl) thiophosphoric triamide adducts and reaction products |
| CN107846878A (en) * | 2015-05-13 | 2018-03-27 | 加里·戴维·麦克奈特 | Improve availability, containing scattered poly- (organic acid) non-aqueous organic liquid induction system of a large amount of and micronutrient to plant |
| CN109415278A (en) * | 2016-06-18 | 2019-03-01 | 美利肯公司 | Method suitable for preparing the composition of fertilizer, preparing the method for these compositions and prepare fertilizer using the composition |
| CN109640650A (en) * | 2016-07-05 | 2019-04-16 | 罗地亚经营管理公司 | Composition containing urease inhibitor |
| CN109704889A (en) * | 2018-12-29 | 2019-05-03 | 沃稞生物科技(大连)有限公司 | A kind of fertilizer synergistic auxiliary agent that root fertilizer is synchronous |
-
2019
- 2019-05-30 CN CN201910463944.5A patent/CN110041141A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370753A (en) * | 2006-01-12 | 2009-02-18 | 阿格罗泰恩国际股份有限公司 | Additive containing N-(n-butyl) thiophosphoric triamide for urea-based fertilizer |
| CN101450880A (en) * | 2007-12-07 | 2009-06-10 | 中国科学院沈阳应用生态研究所 | Nitrogen fertilizer compound synergist and preparation method |
| US20110314883A1 (en) * | 2009-02-17 | 2011-12-29 | Whitehurst Associates, Inc. | Buffered amino alcohol solutions of N-(n-butyl)thiophosphoric triamide (NBPT) and urea fertilizers using such solutions as urease inhibitors |
| CN104781265A (en) * | 2012-10-01 | 2015-07-15 | 加里·戴维·麦克奈特 | Improved liquid formulations of urease inhibitors for fertilizers |
| WO2015020967A1 (en) * | 2013-08-06 | 2015-02-12 | Weyerhaeuser Nr Company | Nbpt solutions for preparing urease inhibited urea fertilizers prepared from n-substituted morpholines |
| WO2015161195A1 (en) * | 2014-04-17 | 2015-10-22 | Mcknight Gary David | Compositions and methods comprising ntrification inhibitors containing a mixture of protic and aprotic solvent systems |
| CN104045465A (en) * | 2014-07-04 | 2014-09-17 | 上海艾拜克国际贸易有限公司 | Solution system containing n-butyl sulfo-phosphoric triamide and application thereof |
| CN107207375A (en) * | 2014-09-30 | 2017-09-26 | 罗地亚经营管理公司 | For D2EHDTPA triamide or the solvent and correlation technique of dicyandiamide solution |
| CN107846878A (en) * | 2015-05-13 | 2018-03-27 | 加里·戴维·麦克奈特 | Improve availability, containing scattered poly- (organic acid) non-aqueous organic liquid induction system of a large amount of and micronutrient to plant |
| US20180022662A1 (en) * | 2015-07-24 | 2018-01-25 | Koch Agronomic Services, Llc | Composition containing n-(n-butyl) thiophosphoric triamide adducts and reaction products |
| CN109415278A (en) * | 2016-06-18 | 2019-03-01 | 美利肯公司 | Method suitable for preparing the composition of fertilizer, preparing the method for these compositions and prepare fertilizer using the composition |
| CN109640650A (en) * | 2016-07-05 | 2019-04-16 | 罗地亚经营管理公司 | Composition containing urease inhibitor |
| CN106946632A (en) * | 2017-05-24 | 2017-07-14 | 浙江今晖新材料股份有限公司 | A kind of compound fertilizer synergistic agent and its preparation and application |
| CN109704889A (en) * | 2018-12-29 | 2019-05-03 | 沃稞生物科技(大连)有限公司 | A kind of fertilizer synergistic auxiliary agent that root fertilizer is synchronous |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Cantarella et al. | Agronomic efficiency of NBPT as a urease inhibitor: A review | |
| Zhou et al. | Effects of nitrogen fertilizer on the acidification of two typical acid soils in South China | |
| CN102731199B (en) | Particulate sustained-release calcium fertilizer and preparation method thereof | |
| RU2459786C2 (en) | Fertiliser polymer mixtures inhibiting nitrification process in soil | |
| CN111615505A (en) | Fertilizer and plant growth promoter for increasing plant yield and method for increasing plant yield | |
| US8221515B2 (en) | Use of acidifying agent for promoting micronutrient uptake | |
| Pérez‐Álvarez et al. | Towards a more sustainable viticulture: foliar application of N‐doped calcium phosphate nanoparticles on Tempranillo grapes | |
| CN101402532B (en) | Novel particle zinc fertilizer | |
| CN105272684A (en) | Efficient fertilizer containing biomass charcoal | |
| CN104355911A (en) | Compound fertilizer for saline-alkaline lands and preparation method thereof | |
| CN101624305A (en) | Organic fluid fertilizer and preparation method and application thereof | |
| CN104446969A (en) | Stabilized fertilizer added with polyglutamic acid and preparation method of stabilized fertilizer | |
| Simpson et al. | Effects of phenylphosphorodiamidate and dicyandiamide on nitrogen loss from flooded rice | |
| CN106883056A (en) | One kind is enlarged afforested area anti-early ageing liquid fertilizer | |
| CN101913931A (en) | Foliar fertilizer for polygonum multiflorum planting | |
| Junejo et al. | Role of inhibitors and biodegradable material in mitigation of nitrogen losses from fertilized lands | |
| CN110041141A (en) | A kind of mixed aid promoting organic nitrogenous fertilizer fertilizer efficiency | |
| CN104609966A (en) | Synergistic chelated foliar fertilizer | |
| Patel et al. | Relative ammonia loss from urea-based fertilizers applied to rice under different hydrological situations | |
| CN106747844A (en) | Suitable for the fertilizer of plants and flowers | |
| CN112745856A (en) | Application of humic acid as repairing material in reducing bioavailability of alkalescent soil Cd | |
| CN108264395A (en) | High calcium liquid nitrogen fertilizer and preparation method thereof | |
| CN112552122A (en) | Fertilizer composition containing polyglutamic acid and polyphosphate | |
| More et al. | Volatilization losses of ammonia from different nitrogen carriers as affected by soil-moisture, organic matter and method of fertilizer application | |
| CN109694281A (en) | A kind of diammonium phosphate 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190723 |