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Fertilizer special for super rice and preparation method for fertilizer

A technology for special fertilizer and super rice, applied in the field of preparation of special fertilizer for super rice, can solve the problems of ineffective utilization of phosphorus and potassium, frequent fertilization of common compound fertilizers, low utilization rate of common compound fertilizers, etc. Nutrient utilization rate, reducing farmers' labor intensity and labor expenditure, and promoting the effect

Active Publication Date: 2014-09-03
湘潭医创园区投资有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

In this way, these medium and micronutrient elements become the short board that limits the high yield of super rice
[0005] 3. The utilization rate of ordinary compound fertilizer is low
These two long-acting fertilizers are mainly aimed at improving the utilization rate of nitrogen fertilizer, and they are passive, and have little effect on improving the utilization rate of phosphorus and potassium.
[0006] 4. The frequency of fertilization of ordinary compound fertilizer is high, and the labor intensity is high

Method used

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  • Fertilizer special for super rice and preparation method for fertilizer
  • Fertilizer special for super rice and preparation method for fertilizer
  • Fertilizer special for super rice and preparation method for fertilizer

Examples

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Effect test

Embodiment 1

[0025] According to the nutritional characteristics of super rice and the physical and chemical properties of the main paddy field soil in our province, determine the appropriate ratio of nitrogen, phosphorus and potassium. 33% of raw material urea, 20% of ammonium chloride, 18% of monoammonium phosphate, and 21% of potassium chloride are pulverized and mixed into nitrogen, phosphorus and potassium compound fertilizer; the raw materials of medium and micronutrient elements are calcium silicate 2%, magnesium sulfate 1%, 0.8% of zinc sulfate, 0.5% of manganese sulfate, 0.1% of copper sulfate, 0.3% of boric acid, 0.1% of ammonium molybdate, 0.1% of ferrous sulfate and 1% of the mixture of amino acid and citric acid are added to the compound fertilizer of nitrogen, phosphorus and potassium ; Then add 0.1% gibberellin and 2% attapulgite with network structure to the nitrogen, phosphorus and potassium compound fertilizer to make 42% special fertilizer for super rice, that is, to make...

Embodiment 2

[0031] According to the nutritional characteristics of super rice and the physical and chemical properties of the main paddy field soil in our province, determine the appropriate ratio of nitrogen, phosphorus and potassium. 32.5% of raw material urea, 20% of ammonium chloride, 18% of monoammonium phosphate, and 21% of potassium chloride are pulverized and mixed into nitrogen, phosphorus, and potassium compound fertilizer; various medium and micronutrient elements such as calcium silicate 2%, magnesium chloride 1%, 0.8% zinc chloride, 0.5% manganese chloride, 0.1% copper chloride, 0.3% boric acid, 0.2% sodium molybdate, 0.5% ferrous chloride and 1% EDTA and citric acid mixture, added to nitrogen phosphorus potassium In compound fertilizer; then add 0.1% indole acetic acid and 2% attapulgite of network structure to nitrogen, phosphorus and potassium compound fertilizer to make 40% special fertilizer for super rice, that is, to make effective nutrient content of nitrogen, phosphor...

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Abstract

The invention discloses a fertilizer special for super rice and a preparation method for the fertilizer. The preparation method comprises the following steps of: a) screening a compound fertilizer with a proper nitrogen, phosphorus and potassium ratio according to nutritional characteristics of the super rice and physiochemical properties of main paddy field soil of Hunan Province; b) complexing various medium and trace nutrient elements and an organic acid active agent; and c) adding the medium and trace nutrient elements complexed with the organic acid active agent into the nitrogen-phosphorus-potassium compound fertilizer, adding a synergist and adding a nano retarder to obtain the fertilizer special for the super rice. The fertilizer special for the super rice can ensure that rice does not overgrow and has multiple valid tillers in an early stage and is not short of the fertilizer and has a few empty grains in a later stage, and can effectively improve soil hardening, reduce fertilizer loss and greatly improve the nutrient utilization rate.

Description

technical field [0001] The invention relates to a special fertilizer for super rice and a preparation method thereof. Background technique [0002] At present, the circulation in the market is ordinary compound fertilizer or general rice special fertilizer, which is mainly used for conventional rice. However, there are few varieties of fertilizers specifically for super rice. The application of general compound fertilizer or rice special fertilizer on super rice has the following defects: [0003] 1. The ratio of nitrogen, phosphorus, and potassium for ordinary compound fertilizers or ordinary rice fertilizers is generally 20:10:10 or 12:10:8, because nitrogen and phosphorus in compound fertilizers are relatively cheap, and potassium is relatively expensive. In order to pursue higher For profit, the compound fertilizer produced is high in nitrogen and phosphorus and low in potassium, so the high-yield potential of super rice cannot be brought into play. [0004] 2. Ordina...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
Inventor 万强谭放军周陈刚谢士奇周艳
Owner 湘潭医创园区投资有限公司
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