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Fertilizing method for double-season rice of which previous crop is winter potatoes

A fertilization method and potato technology, applied in the direction of fertilization method, fertilization device, botany equipment and method, etc., can solve the problems of inability to guarantee the safe production of potatoes, low fertilizer utilization rate, aggravated fertilizer waste and environmental pollution, and achieve improved utilization Efficiency and planting benefits, the effect of reducing the amount of application

Active Publication Date: 2016-07-06
CROP RES INST GUANGDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nowadays, in order to ensure the yield and benefits of potatoes, growers in the "potato-rice-rice" three-crop area generally apply a large amount of fertilizer when planting winter potatoes: the amount of pure nitrogen per mu exceeds 20Kg, K 2 The application amount of O exceeds 27Kg. This method of fertilizer application can neither guarantee the safe production of potatoes, but also lead to low fertilizer utilization rate, and a large amount of fertilizer remaining in the soil will cause environmental pollution.
On the basis of the high fertility of the planting land, the growers apply a large amount of fertilizer to the subsequent double-cropping rice in the morning and evening, which further aggravates the waste of fertilizer and environmental pollution.

Method used

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  • Fertilizing method for double-season rice of which previous crop is winter potatoes
  • Fertilizing method for double-season rice of which previous crop is winter potatoes
  • Fertilizing method for double-season rice of which previous crop is winter potatoes

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Experimental program
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Effect test

Embodiment 1

[0030] A method for fertilizing double-crop rice in which previous stubble is winter planting potatoes, comprising the following steps:

[0031] Step 1): Planting Winter Potatoes

[0032] The row spacing of winter potato plants is 22 cm and 60 cm, and the number of plants per mu is 5056. The base fertilizer is 400kg of decomposed chicken manure per mu; 100kg of compound fertilizer (16:5:19); 50kg of acidic soil conditioner containing calcium and magnesium. Topdressing is divided into three times: when the first topdressing time is 70% of seedling emergence, use 15kg of compound fertilizer (16:5:19) per mu, and pour water into it; the second topdressing time is 10 days after the first topdressing, Use 15kg of compound fertilizer (16:5:19), sprinkle with water; the third topdressing time is 10 days after the second topdressing, and apply 15kg of compound fertilizer (16:5:19) and potassium chloride (≥ 60%K 2 O) 5kg. That is, N:P in the whole growth period of winter potatoes ...

Embodiment 2

[0038] A method for fertilizing double-crop rice in which previous stubble is winter planting potatoes, comprising the following steps:

[0039] Step 1): Planting Winter Potatoes

[0040] The row spacing of winter potato plants is 23 cm and 59 cm, and the number of plants per mu is 4908. The base fertilizer is 450kg of decomposed chicken manure per mu; 100kg of compound fertilizer (16:5:19); 50kg of acidic soil conditioner containing calcium and magnesium. Topdressing is divided into three times: when the first topdressing time is 65% of seedling emergence, use 13kg of compound fertilizer (16:5:19) per mu, and sprinkle with water; the second topdressing time is 8 days after the first topdressing, Use 14kg of compound fertilizer (16:5:19), sprinkle with water; the time for the third topdressing is 8 days after the second topdressing, and apply 15kg of compound fertilizer (16:5:19) and potassium chloride (≥ 60%K 2 O) 6kg. That is, N:P in the whole growth period of winter pot...

Embodiment 3

[0046] A method for fertilizing double-crop rice in which previous stubble is winter planting potatoes, comprising the following steps:

[0047] Step 1): Planting Winter Potatoes

[0048] The row spacing of winter potato plants is 24 cm and 55 cm, and the number of plants per mu is 5045. The base fertilizer is 480kg of decomposed chicken manure per mu; 100kg of compound fertilizer (16:5:19); 50kg of acidic soil conditioner containing calcium and magnesium. Topdressing is divided into three times: when the first topdressing time is 60% of seedling emergence, use 14kg of compound fertilizer (16:5:19) per mu, and sprinkle water; the second topdressing time is 10 days after the first topdressing. Use 13kg of compound fertilizer (16:5:19), sprinkle with water; the third topdressing time is 9 days after the second topdressing, and apply 14kg of compound fertilizer (16:5:19) and potassium chloride (≥ 60%K 2 O) 6kg. That is, N:P in the whole growth period of winter potatoes 2 o ...

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Abstract

The invention provides a fertilizing method for double-season rice of which the previous crop is winter potatoes. Base fertilizer is not applied to the early rice and the late rice, and top dressing is performed in the late period. According to the fertilizing method, the fertilizing amount can be decreased to about 80% of the conventional fertilizing amount, the yields of the obtained early rice and late rice are both high, the quality is good, and the yields and the quality have little difference with those of early rice and late rice which are obtained through a conventional fertilizing method. Accordingly, through the fertilizing method, the fertilizer utilization rate and the production benefit can be increased, the production cost is reduced, and too much pollution cannot be caused to the environment.

Description

technical field [0001] The invention relates to the technical field of rice fertilization methods, in particular to a double-cropping rice fertilization method in which winter potatoes are the previous stubble. Background technique [0002] Nowadays, in order to ensure the yield and benefits of potatoes, growers in the "potato-rice-rice" three-crop area generally apply a large amount of fertilizer when planting winter potatoes: the amount of pure nitrogen per mu exceeds 20Kg, K 2 The application amount of O exceeds 27Kg. This method of fertilizer application can neither guarantee the safe production of potatoes, but also lead to low fertilizer utilization rate, and the large amount of fertilizer remaining in the soil will cause environmental pollution. On the basis of the high fertility of the planting land, the growers apply a large amount of fertilizer to the subsequent double-cropping rice in the morning and evening, which further aggravates the waste of fertilizer and en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G1/00
CPCA01C21/00A01G22/00
Inventor 李小波刘晓津李武王丽安康索海翠方志伟张小兰杨少海谢景
Owner CROP RES INST GUANGDONG ACAD OF AGRI SCI