Acid liquid fertilizer for drip irrigation and its prepn

A liquid fertilizer, acid technology, applied in the directions of botanical equipment and methods, fertilizer mixture, application, etc., can solve the problems affecting the effect of large-scale promotion and application, low plant absorption and utilization rate, uneven water and fertilizer, etc. The effect of saving manpower or mechanical costs, easy to promote and apply, and simple equipment

Inactive Publication Date: 2003-11-05
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to fundamentally overcome two problems in the application of agricultural drip irrigation technology, that is, the fertilizer used for drip irrigation is usually solid, which is generally dissolved and then drip-irrigated with water, while the general solubility of conventional phosphate fertilizers is poor, and its absorption and utilization by plants The rate is not high; the use of drip irrigation technology affects its large-scale promotion and application effect - because the minerals in the water quality are easy to deposit during long-term use, resulting in clogging of the drip holes, resulting in serious unevenness in the amount of water and fertilizer applied in each drip irrigation area , especially in arid areas that directly affect yield and other defects, and provide a new type of acidic liquid fertilizer for agricultural drip irrigation with complete, balanced, high absorption and utilization rates;

Method used

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  • Acid liquid fertilizer for drip irrigation and its prepn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: the influence of acidic liquid fertilizer for agricultural drip irrigation of the present invention on cotton yield

[0024] The structural representation of acidic liquid fertilizer production equipment for drip irrigation of the present invention is shown in figure 1, The technological process is as follows: first inject 23 tons of water into the production tank 6 through the pipeline 4, and add 6 tons of diamine phosphate, 5 tons of KCl and 3.5 tons of solubilizer into the production tank 6 with the bucket elevator 5 while stirring, and the stirring speed It is 120 rev / min, fully stirred when the solid material is dissolved, then add 13.5 tons of urea, after the complete dissolution, the sulfuric acid in the sulfuric acid storage tank 1 is poured into the sulfuric acid metering tank 2 by the acid-resistant pump, (calculate its flow rate by the flow meter 3 ) and then add 2 tons of sulfuric acid through the pipeline, fully mix, and complete the preparat...

Embodiment 2

[0028] Embodiment 2: the impact of drip irrigation acid liquid fertilizer on the growth and development of cotton during drip irrigation

[0029] The preparation method of the acidic liquid fertilizer for agricultural drip irrigation of the present embodiment is the same as in Embodiment 1. Its weight ratio of each component is ammonium sulfate: monoamine phosphate: K 2 SO 4 : solubilizer: sulfuric acid: water = 40: 5: 1: 5: 2: 47;

[0030] The acidic liquid fertilizer and conventional fertilization for agricultural drip irrigation prepared by the present embodiment of the same amount are used to carry out the cotton growth and development comparative test, and the results are shown in the following table 2;

[0031] deal with

Embodiment 3

[0032] Embodiment 3: the impact of acidic liquid fertilizer for agricultural drip irrigation of the present invention on cotton yield

[0033] The preparation method of the acidic liquid fertilizer for agricultural drip irrigation of the present embodiment is the same as in Embodiment 1. The weight ratio of each component is urea: diamine phosphate: KCl: solubilizer: sulfuric acid: water=10:25:5:10:2:48.

[0034] The acidic liquid fertilizer and conventional fertilization for agricultural drip irrigation prepared by the present embodiment of the same amount are used to carry out the cotton growth and development comparative test, and the results are shown in the following table 3;

[0035] deal with

[0036] It can be seen from Table 3 that the number of plants per mu and the number of bolls per plant increased by 200 and 0.47 respectively, and the yield per mu increased by 13.1kg, and the acidic liquid fertilizer increased by 12.8% compared with conventional fertiliz...

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Abstract

The present invention relates to one kind of acid liquid fertilizer for drip irrigation and including nitrogen fertilizer, phosphate fertilizer, potash fertilizer, rooting promoter, dissolution promoter, trace elements and sulfuric acid. It is prepared through the steps of: dissolving phosphate fertilizer, potash fertilizer, trace elements and dissolution promoter in water through stirring, dissolving nitrogen fertilizer, adding sulfuric acid and adding rooting promoter. Its preparation process is scientific, low in power consumption and low in cost and uses simple apparatus. Its dissolution promoter can raise the dissolution degree of routine phosphate fertilizer and its rooting promoter can promote the growth of plant root system and the plant absorption capacity to nutrients. Its acidity can prevent jamming of drip holes.

Description

field of invention [0001] The invention belongs to the field of liquid fertilizers, in particular to an acidic liquid fertilizer for drip irrigation and a preparation method thereof. Background technique [0002] Drip irrigation is a water-saving irrigation method that can be widely used in agriculture. The use of drip irrigation technology can save water by 50%, save fertilizer by 30%, increase production by about 20%, reduce labor intensity, and greatly improve production efficiency. There is an urgent need for agricultural fertilizers suitable for drip irrigation. Most of the fertilizers used in agricultural drip irrigation are solid products. When using, the solid fertilizers need to be dissolved in the fertilization tank first, and then irrigated with water. However, conventional phosphate fertilizers generally have poor solubility and are not suitable for use in drip irrigation. They can only be applied to farmland as base fertilizer. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90C05G3/00
Inventor 张小勇莫海涛赵华李佐虎
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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