Dedicated polybasic controlled-release fertilizer for millet

A controlled-release fertilizer and multi-component technology, applied in the fields of application, nitrogen fertilizer, potassium fertilizer, etc., can solve the problems of out-of-synchronization of fertilizer needs, difficult operation, unreasonable ratio, etc., to achieve nutrient balance, reasonable nutrient ratio, and full fertility The effect of long-term demand

Inactive Publication Date: 2015-03-11
INST OF AGRI RESOURCES & ENVIRONMENT HEBEI ACADEMY OF AGRI & FORESTRY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of special multi-component controlled-release fertilizer for millet with long fertilizer effect, reasonable nutrient distribution ratio, only one base fertilizer application in the whole growth period, slow and controlled release effect, and can meet the nutrient requirements of summer grain in the whole growth period, so as to solve the problem of existing millet Secondary fertilization is required in the cultivation technique, the operation is difficult, the supply of fertilizer is not synchronized with the fertilizer demand of millet, and the technical problems of unreasonable ratio

Method used

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  • Dedicated polybasic controlled-release fertilizer for millet
  • Dedicated polybasic controlled-release fertilizer for millet
  • Dedicated polybasic controlled-release fertilizer for millet

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Effect test

Embodiment 1

[0021] Embodiment 1: the multivariate controlled-release fertilizer special for millet of the present invention comprises compound fertilizer granule and coating layer, and described compound fertilizer granule and coating layer are made by the raw material of following component and weight percent: N 46% urea granules 35%, N 18%, P 2 o 5 46% Diammonium Phosphate Powder 22%, K 2 O content is 50% potassium chloride powder 28.24%, anhydrous zinc sulfate powder 0.5%, manganese sulfate powder 1.26%, borax powder 1%, ferrous sulfate powder 2%, humic acid content is 55%, K 2 O content is 7% of potassium humate powder of 10%, coating agent 3%; 2 o 5 、K 2 The sum of the total nutrients of the three is 45%, of which: N is 20.06%, P 2 o 5 10.12%, K 2 O is 14.82%. The ratio of nitrogen, phosphorus and potassium is 20:10:15. The above-mentioned urea granules, diammonium hydrogen phosphate powder, potassium chloride powder, anhydrous zinc sulfate powder, manganese sulfate powder, ...

Embodiment 2

[0024] Embodiment 2: the multivariate controlled-release fertilizer special for millet of the present invention comprises compound fertilizer granule and coating layer, and described compound fertilizer particle and coating layer are made by the raw material of following component and weight percent:

[0025] Urea granules with 46% N content 30.5%, N content 18%, P 2 o 5 46% Diammonium Phosphate Powder 22%, K 2 O content is 50% potassium chloride powder 25%, anhydrous zinc sulfate powder 1%, manganese sulfate powder 0.5%, borax powder 1%, ferrous sulfate powder 2%, humic acid content is 55%, K 2 O content is 15% of potassium humate powder of 10%, coating agent 3%; 2 o 5 、K 2 The sum of the total nutrients of the three is 42.11%, of which: N is 17.99%, P 2 o 5 10.12%, K 2 O is 14%. The ratio of nitrogen, phosphorus and potassium is 18:10:14. The above-mentioned urea granules, diammonium hydrogen phosphate powder, potassium chloride powder, anhydrous zinc sulfate powder...

Embodiment 3

[0028] Embodiment 3: the multivariate controlled-release fertilizer special for millet of the present invention comprises compound fertilizer granules and coating layer, and described compound fertilizer granule and coating layer are made by the raw material of following component and weight percent:

[0029] Urea granules with 46% N content 30%, N content 18%, P 2 o 5 46% Diammonium Phosphate Powder 22%, K 2 O content is 50% potassium chloride powder 26%, anhydrous zinc sulfate powder 1.5%, manganese sulfate powder 1.5%, borax powder 1.5%, ferrous sulfate powder 3%, humic acid content ≥ 55%, K 2 The O content is 11.5% of the potassium humate powder of 10%, and 3% of the coating agent; 2 o 5 、K 2 The sum of the total nutrients of the three is 42.03%, of which: N is 17.76%, P 2 o 5 10.12%, K 2 O is 14.15%. The ratio of nitrogen, phosphorus and potassium is 18:10:14. The above-mentioned urea granules, diammonium hydrogen phosphate powder, potassium chloride powder, anhy...

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Abstract

A dedicated polybasic controlled-release fertilizer for millet comprises compound fertilizer granules and a coating layer which comprises the following raw materials: urea granules, diammonium phosphate powder, potassium chloride powder, anhydrous zinc sulfate powder, manganese sulfate powder, borax powder, ferrous sulfate powder, potassium humate powder and a coating agent. In the compound fertilizer granule, the sum of the total nutrients of N, P2O5 and K2O is 36.71%-46.30%, wherein N accounts for 16.48%-20.06%, P2O5 accounts for 9.2%-10.12%, and K2O accounts for 11.03%-16.12%. The invention provides the dedicated polybasic controlled-release fertilizer for millet, and the dedicated polybasic controlled-release fertilizer is long-term in fertilizer efficiency, and reasonable in ratio of nutrients, has a controlled release effect, can meet the requirement of the whole growing period of summer foxtail millet on nutrients, and solves the technical problems that in the conventional millet cultivation technology, secondary fertilizer application is needed, the operation difficulty is high, the supplying of the fertilizer is no-synchronous with the requirement of millet on fertilizers, and the ratio is unreasonable; moreover, base fertilizers are only applied once in the whole growing period.

Description

technical field [0001] The invention relates to a special fertilizer for millet cultivation, in particular to a special multi-component controlled-release fertilizer for millet. Background technique [0002] Millet cultivation areas are mostly in areas with poor water and fertilizer conditions. In the existing millet fertilization technology, the types of chemical fertilizers are mainly nitrogen, phosphorus and potassium elemental fertilizers or multi-crop general-purpose large-scale element nitrogen, phosphorus and potassium compound fertilizers. Farmers need to apply fertilizer twice, that is, before planting combined with soil preparation. Fertilize again. Due to poor irrigation conditions, millet fertilization cannot realize the simultaneous supply of water and fertilizer, and it is even more difficult to coordinate the contradiction between water and fertilizer supply and millet nutrient demand. Moreover, the variety of the above-mentioned fertilizers is single and th...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00C05G3/80C05C9/00C05D1/00C05D1/02C05D9/02C05F11/02
Inventor 邢素丽高志华程汝宏刘孟朝张婷杜金钟师志刚项金英李会龙郭同洲
Owner INST OF AGRI RESOURCES & ENVIRONMENT HEBEI ACADEMY OF AGRI & FORESTRY SCI
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