Potato overall-process stereoscopic balanced fertilization method

A technology for balancing fertilization and potatoes, applied in fertilization methods, fertilization devices, organic fertilizers and other directions, can solve the problems of difficulty in top dressing, low potato yield, insufficient nutrients in the later stage, etc., and achieve the effects of improving starch quality, increasing yield, and improving tuber starch content.

Inactive Publication Date: 2015-12-23
HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, plastic film mulching is widely used in potato production. Because plastic film mulching brings difficulties to topdressing in the later stage, producers generally apply fertilizer at one time before covering the film, which may ...

Method used

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Effect test

Embodiment 1

[0017] The potato full-range three-dimensional balanced fertilization method of the present invention, according to the law of potato growth and development and the law of needing fertilizer in different periods, according to the land measurement results, base fertilizer, topdressing and foliar fertilizer are applied respectively, and the specific methods are as follows:

[0018] 1. Pre-planting base fertilizer: Apply the early base fertilizer when plowing and preparing the land. The early base fertilizer is uniformly mixed with 20-29.3 parts of organic fertilizer and 0.2-0.6 parts of biological agent by weight, and the mass content of organic matter in the organic fertilizer is required to be ≥ 50%, the effective number of viable bacillus in the biological agent is ≥ 200 million / ml, and the initial base fertilizer is evenly applied to the surface and then raked. The amount of fertilizer applied is 20.2 kg / mu to 29.9 kg / mu; Base fertilizer, the base fertilizer in the later stag...

Embodiment 2

[0023] According to different types of land, fertilization is different. For clay soil with high soil fertility such as black soil and chernozem, the specific ratio is as follows:

[0024] 1. Pre-planting base fertilizer: the initial base fertilizer is 20.2 kg / mu to 25.5 kg / mu. The early base fertilizer is mixed with 20 to 25 parts of organic fertilizer and 0.2 to 0.5 parts of biological agent by weight, and the later base fertilizer is 35 kg / mu Mu to 47 kg / mu, the base fertilizer in the later stage is mixed by weight parts from 10 to 15 parts of diammonium phosphate, 10 to 12 parts of urea and 15 to 20 parts of potassium sulfate;

[0025] 2. Topdressing fertilizer in intertillage: topdressing amount is 17.5kg / mu-25kg / mu, the first topdressing is 10kg / mu-15kg / mu water-soluble fertilizer with large amount of elements, and the second topdressing is 7.5kg / mu medium-element water-soluble fertilizer ~10 kg / mu;

[0026] 3. Foliar fertilizer in the flowering stage: the amount of fol...

Embodiment 3

[0028] For soil with low fertility such as sandy soil, the specific fertilizer amount is as follows:

[0029] 1. Base fertilizer before planting: 25.6 kg / mu to 29.9 kg / mu in the early stage. The base fertilizer in the early stage is composed of 25.3 to 29.3 parts of organic fertilizer and 0.3 to 0.6 parts of biological agent in parts by weight. The base fertilizer in the later stage is 44.4 kg / mu Mu to 55.1 kg / mu, the late base fertilizer is mixed by weight parts from 12.7 to 17.6 parts of diammonium phosphate, 12.7 to 14.1 parts of urea and 19 to 23.4 parts of potassium sulfate;

[0030] 2. Topdressing fertilizer in intertillage: topdressing amount is 25kg / mu-30kg / mu, the first topdressing is 14.3kg / mu-18kg / mu water-soluble fertilizer with large amount of elements, and the second topdressing is 10.7kg / mu medium-element water-soluble fertilizer ~12 kg / mu;

[0031] 3. Foliar fertilizer in the flowering stage: the amount of foliar fertilizer is 3 kg / mu to 7 kg / mu. The foliar fe...

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PUM

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Abstract

The invention relates to a potato planting fertilization method, particularly a potato overall-process stereoscopic balanced fertilization method. On the basis of the potato growth development rules and fertilizer demand rules in different stages, a base fertilizer, an additional fertilizer and a foliage fertilizer are respectively applied according to the land surveying result. The method comprises the following steps: in the soil tillage process, an early-stage base fertilizer is uniformly applied to the ground surface, and raking operation is performed; a later-stage base fertilizer is applied to the 2-6cm-deep places on both sides of the potato seed in the sowing process; the additional fertilizer is applied twice in the intertillage operation, wherein the additional fertilizer is uniformly applied onto both sides of the plant, and the cover soil thickness is 4-6cm; and in the early blooming stage, the foliage fertilizer is sprayed on the plant leaf surface. The potato overall-process stereoscopic balanced fertilization method enhances the potato yield, has important effects on enhancing the quality of the potato tuber starch, and is beneficial to the development of starch industry. In practical application, the method can enhance the potato yield by 15% or above and enhance the tuber starch content by 1-2%.

Description

technical field [0001] The invention relates to a potato planting fertilization method, in particular to a potato full-range three-dimensional balanced fertilization method. Background technique [0002] As the fourth largest food crop, potato plays an important role in agricultural production. Achieving high yield and high efficiency of potato is the goal of agricultural development, and cultivating strong seedlings is the first step to obtain high yield and high efficiency. However, at present, plastic film mulching is widely used in potato production. Because plastic film mulching brings difficulties to topdressing in the later stage, producers generally apply fertilizer at one time before covering the film, which may easily cause excessive nutrients in the early stage of growth and insufficient nutrients in the later stage. , Even if more nutrients are supplied in the later stage, it cannot make up for the loss at the seedling stage, resulting in low yield of potatoes. ...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05F11/08A01C21/00
Inventor 金光辉姜丽丽高幼华苗兴芬
Owner HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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