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High-quality high-yield fertilization method for continuous cropping of sweet potatoes

A fertilization method and repeated cropping technology, which are applied in the field of crop cultivation, can solve the problems of poor quality and low yield, and achieve the effects of reducing the use of pesticides, improving soil structure, and preventing or treating sweet potato diseases and/or pests

Inactive Publication Date: 2020-09-29
ZHENGZHOU JINZHENG BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a high-quality and high-yield fertilization method for repeated planting of sweet potatoes, so as to solve the problem of low yield and poor quality caused by the existing continuous planting of sugarcane

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In the sweet potato heavy cropping field, plant 4000 sweet potatoes per mu, apply 160 kg of balanced bio-organic-inorganic compound fertilizer at the bottom, and apply a high-concentration, high-potassium humic acid complex organic-inorganic compound fertilizer once during the potato block expansion period, and apply 40 kg of fertilizer per mu , 5000 kg of sweet potatoes per mu.

[0043] In the balanced bio-organic-inorganic compound fertilizer, the effective content of nitrogen N is 10%, phosphorus P 2 o 5 The effective content is 10%, potassium K 2 The effective content of O is 10%, nitrogen N, phosphorus P 2 o 5 , Potassium K 2 The mass ratio of O is 1:1:1, the total humic acid content is 15%, the organic matter content is 30%, the amino acid content is 3%, the effective content of calcium CaO is 3%, the trace element content is 0.3%, polyglutamine The acid content is 0.3%, and the beneficial microorganisms are not less than 0.3 billion / g. The beneficial microor...

Embodiment 2

[0046] In the sweet potato heavy cropping field, plant 4500 sweet potatoes per mu, apply 180 kg of balanced bio-organic-inorganic compound fertilizer at the bottom, and apply a high-concentration, high-potassium humic acid complex organic-inorganic compound fertilizer once during the potato block expansion period, and apply 45 kg of fertilizer per mu , 5800 kg of sweet potatoes per mu.

[0047] In the balanced bio-organic-inorganic compound fertilizer, the total humic acid content is 16%, and the organic matter content is 31%. 20%, all the other technical indexes are with embodiment 1.

Embodiment 3

[0049] In the sweet potato heavy cropping field, plant 5,000 sweet potatoes per mu, apply 200 kg of balanced bio-organic-inorganic compound fertilizer at the bottom, and apply a high-concentration, high-potassium humic acid complex organic-inorganic compound fertilizer once during the potato block expansion period, and apply 50 kg of fertilizer per mu , 6500 kg of sweet potatoes per mu.

[0050] The technical index of balanced type bio-organic-inorganic compound fertilizer and high-concentration high-potassium type humic acid complex organic-inorganic compound fertilizer is the same as embodiment 1.

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Abstract

The invention discloses a high-quality high-yield fertilization method for continuous cropping of sweet potatoes. The method is used for fertilizing sweet potatoes planted in a continuous cropping mode, and belongs to the technical field of crop cultivation. The invention particularly relates to the high-quality high-yield fertilization method for continuous cropping of sweet potatoes to overcomethe problems of low yield and poor quality caused by existing continuous cropping planting of sweet potatoes. According to the invention, 150-200 kilograms of a balanced biological organic-inorganic compound fertilizer is applied to each mu of land in a bottom application manner; 30-50 kg of a high-concentration high-potassium humic acid complex organic-inorganic compound fertilizer is applied once to each mu of land through flushing in a potato block expansion period; high-content organic matter, humic acid and polyglutamic acid in the biological organic-inorganic compound fertilizer undergoa deep complexing reaction with nitrogen, phosphorus and potassium, so water retention and fertilizer retention are more efficient, bottom application effect is better, and fertilizer damage hardly occurs when an application amount is increased; in addition, the utilization rate of nitrogen, phosphorus and potassium can reach 70% or above, a base fertilizer is applied heavily, topdressing is conducted slightly, the yield of the continuously-cropped sweet potatoes can reach 4500-6500 kg per mu, the quality of the sweet potatoes is high, and continuous cropping harm and water, fertilizer and manual input are reduced.

Description

technical field [0001] The invention discloses a high-quality, high-yield fertilization method for repeated sweet potato planting, which belongs to the field of crop cultivation technology, and specifically relates to a high-quality, high-yield fertilization method for repeated sweet potato planting. Background technique [0002] Sweet potato, also known as sweet potato, sweet potato, sweet potato, sweet potato, sweet potato, is a twisting herbaceous vine of the genus Dioscorea in the family Dioscoreaceae. It is a kind of root crop in dry land. It can be used as a commodity in any size of tuber. There is no obvious maturity period. The longer the growth period, the higher the yield. [0003] Avoid heavy cropping of sweet potatoes, the yield of heavy cropping is low and there are many diseases, and the yield drops significantly. [0004] Application number: CN201611042893.1, which discloses a cultivation method for repeated cropping of sweet potatoes. It is to apply the bio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00C05G3/60C05G3/80C05G5/10C05G5/12
CPCA01C21/005C05C11/00C05F11/02C05G3/60C05G3/80C05G5/12C05G5/10
Inventor 常治和李文圣张旭辉岳明灿
Owner ZHENGZHOU JINZHENG BIOCHEM
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