Special compound foliar fertilizer for rice and preparation method thereof

A technology of foliar fertilizer and rice, which is applied in the direction of application, liquid fertilizer, fertilization device, etc., can solve the problems of low technical availability, many varieties, and small overall dosage

Inactive Publication Date: 2021-07-23
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current application of compound foliar fertilizers has the following technical problems: (1) The overall dosage is not large; (2) The rate of technical completion is low; (3) There are many varieties and the quality is uneven
At present, there is no selenium-containing multi-nutritional anti-lodging compound foliar fertilizer specifically for rice on the market. If a foliar fertilizer that is rich in nutrients, relatively simple to use, and significantly improves lodging resistance and selenium content in rice grains can be provided, it will have Wide application prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of special compound foliar fertilizer for rice, the steps are as follows:

[0030] Take 700 parts by weight of deionized water and add it to a water bath, add 71 parts by weight of sodium selenite, heat to 50°C, and stir until dissolved; then add 15 parts by weight of fulvic acid, and heat up to 90°C , continue to stir for 10 minutes; then add 8.5 parts by weight of sodium silicate and 3.5 parts by weight of sodium tetraborate, continue to stir until dissolved, keep warm for 8 minutes, and then naturally cool to obtain a compound foliage fertilizer, add HAC-NaAC buffer The pH value of the solution is adjusted to 4, so that the fulvic acid can fully dissolve and work.

[0031] The preparation steps of fulvic acid are as follows: a. Take lignite powder, nitrohumic acid or peat, and place them in a 30°C water bath to preheat to the corresponding temperature before oxidative degradation; b. Oxidative degradation: first add mass Concentration of 15% hyd...

Embodiment 2

[0037] A preparation method of special compound foliar fertilizer for rice, the steps are as follows:

[0038] Take 800 parts by weight of deionized water and add it to a water bath, add 73 parts by weight of sodium selenite, heat to 70°C, and stir until dissolved; then add 15 parts by weight of fulvic acid, and heat up to 100°C , continue to stir for 15 minutes; then add 9.5 parts by weight of sodium silicate and 4.5 parts by weight of sodium tetraborate, continue to stir until dissolved, keep warm for 10 minutes, then naturally cool to obtain a compound foliage fertilizer, add HAC-NaAC buffer The pH value of the solution is adjusted to 5, so that the fulvic acid can fully dissolve and work.

[0039] The preparation steps of fulvic acid are as follows: a. Take lignite powder, nitrohumic acid or peat, and place it in a 70°C water bath to preheat to the corresponding temperature before oxidative degradation; b. Oxidative degradation: first add mass Concentration of 25% hydroge...

Embodiment 3

[0042] A preparation method of special compound foliar fertilizer for rice, the steps are as follows:

[0043] Take 750 parts by weight of deionized water and add it to a water bath, add 74 parts by weight of sodium selenite, heat to 60°C, and stir until dissolved; then add 15 parts by weight of fulvic acid, and heat up to 95°C , continue to stir for 12 minutes; then add 8 parts by weight of sodium silicate and 3 parts by weight of sodium tetraborate, continue to stir until dissolved, keep warm for 9 minutes, and then naturally cool to obtain a compound foliar fertilizer, add HAC-NaAC buffer The pH value of the solution is adjusted to 4.5, so that the fulvic acid can fully dissolve and work.

[0044] The preparation steps of fulvic acid are as follows: a. Take lignite powder, nitrohumic acid or peat, and place it in a 50°C water bath to preheat to the corresponding temperature before oxidative degradation; b. Oxidative degradation: first add mass Concentration of 20% hydrogen...

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PUM

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Abstract

The invention relates to a compound foliar fertilizer, in particular to a special compound foliar fertilizer for rice and a preparation method thereof, which belong to the technical field of agricultural fertilizers. The invention provides a special compound foliar fertilizer for rice, which is prepared from the following raw materials in parts by weight: 70-74 parts of sodium selenite, 8-10 parts of sodium silicate, 3-5 parts of sodium tetraborate and 15 parts of fulvic acid. According to the special compound foliar fertilizer for rice, all the components have a synergistic effect, heavy metal absorption of rice can be inhibited, the effective utilization rate of an existing rice fertilizer is increased, and the rice yield increasing promoting effect is improved. The fertilizer disclosed by the invention is high in nutrient content and few in auxiliary components, promotes early maturing of rice, can also greatly increase the thousand seed weight of rice grains, has a lodging-resistant effect, and ensures stable development of the rice.

Description

technical field [0001] The invention relates to a compound foliar fertilizer, in particular to a special compound foliar fertilizer for rice and a preparation method thereof, which is rich in selenium, silicon, boron and fulvic acid, and belongs to the technical field of agricultural fertilizers. Background technique [0002] Foliar fertilizer sprays nutrients directly on the leaves of crops without traditional root absorption, avoiding the fixation or conversion of trace elements by soil microorganisms during root absorption, and greatly enhancing the absorption efficiency of trace element selenium. Moreover, during the application process, the loss of nutrients such as adsorption by the soil and runoff on the soil surface is avoided. Therefore, foliar application of trace element fertilizers only needs about one-tenth of the amount of soil fertilizer to achieve the same effect. [0003] Practice has proved that foliar fertilization is one of the fertilization techniques w...

Claims

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Application Information

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IPC IPC(8): C05G3/80C05G5/23
CPCC05G3/80C05D9/00C05G5/23
Inventor 单德鑫熊钦毅代英杰陈曦都昌杰
Owner CHONGQING UNIV OF ARTS & SCI
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