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Integrated fertilization method for tobacco and rice rotation

A fertilization method and cake fertilizer technology, which are applied in the directions of fertilization methods, fertilization devices, potash fertilizers, etc., can solve the problems of low utilization efficiency of potash fertilizers, the quality of tobacco leaves cannot be guaranteed, and the potassium content of tobacco leaves is low, so as to achieve efficient utilization, ensure yield, and improve content of potassium. effect of potassium

Active Publication Date: 2019-12-06
INST OF TOBACCO ANHUI ACADEMY OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a certain yield and economic benefits can be guaranteed, the quality of tobacco leaves cannot be guaranteed, the potassium content of tobacco leaves is low, and the utilization efficiency of fertilizers, especially potassium fertilizers, is low

Method used

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  • Integrated fertilization method for tobacco and rice rotation
  • Integrated fertilization method for tobacco and rice rotation
  • Integrated fertilization method for tobacco and rice rotation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The integrated fertilization method for tobacco-rice rotation includes the following steps:

[0020] (1) Fertilization in tobacco season: after soil preparation, apply N:K 2 The base fertilizer with an O ratio of 1:4 is composed of nitrogen, phosphorus and potassium compound fertilizer, potassium nitrate, calcium-magnesium phosphate fertilizer, cake fertilizer and potassium sulfate. Among them, the N:P compound fertilizer is N:P 2 O 5 :K 2 The ratio of O is 9:13.5:22.5, the cake fertilizer is rapeseed cake (the same below), the N:P of cake fertilizer 2 O 5 :K 2 The ratio of O is 4.9:2.1:1.9, the application rate of NPK compound fertilizer is 50 kg / mu, the application rate of potassium nitrate is 15 kg / mu, the application rate of calcium magnesium phosphate is 25 kg / mu, the application rate of cake fertilizer 30 kg / mu, the application rate of potassium sulfate is 24 kg / mu, and the base fertilizer application time is early March;

[0021] (2) Returning tobacco rods to the field...

Embodiment 2

[0024] The integrated fertilization method for tobacco-rice rotation includes the following steps:

[0025] (1) Fertilization in tobacco season: after soil preparation, apply N:K 2 A base fertilizer with an O ratio of 1:4.5. The base fertilizer is composed of NPK compound fertilizer, potassium nitrate, calcium-magnesium phosphate fertilizer, cake fertilizer and potassium sulfate. Among them, N:P 2 O 5 :K 2 O ratio is 9:13.5:22.5, N:P of cake fertilizer 2 O 5 :K 2 The ratio of O is 4.9:2.1:1.9, the application rate of NPK compound fertilizer is 50 kg / mu, the application rate of potassium nitrate is 15 kg / mu, the application rate of calcium magnesium phosphate is 25 kg / mu, the application rate of cake fertilizer 30 kg / mu, the application rate of potassium sulfate is 32 kg / mu, and the base fertilizer application time is early March;

[0026] (2) Returning tobacco rods to the field: After tobacco is harvested, the tobacco rods are returned to the field with a rotary tiller, and the leng...

Embodiment 3

[0029] The integrated fertilization method for tobacco-rice rotation includes the following steps:

[0030] (1) Fertilization in tobacco season: after soil preparation, apply N:K 2 A base fertilizer with an O ratio of 1:5. The base fertilizer is composed of nitrogen, phosphorus and potassium compound fertilizer, potassium nitrate, calcium magnesium phosphate, cake fertilizer and potassium sulfate. 2 O 5 :K 2 O ratio is 9:13.5:22.5, N:P of cake fertilizer 2 O 5 :K 2 The ratio of O is 4.9:2.1:1.9, the application rate of NPK compound fertilizer is 50 kg / mu, the application rate of potassium nitrate is 15 kg / mu, the application rate of calcium magnesium phosphate is 25 kg / mu, the application rate of cake fertilizer 30 kg / mu, the application rate of potassium sulfate is 40 kg / mu, and the base fertilizer application time is early March;

[0031] (2) Returning tobacco rods to the field: After tobacco is harvested, the tobacco rods are returned to the field with a rotary tiller, and the le...

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Abstract

The invention discloses a tobacco-rice rotation integrated fertilization method including the following steps: (1) fertilization in tobacco season: performing soil preparation and fertilizing a base fertilizer with N:K2O being 1:4-5; (2) tobacco straw returning to the field: picking tobacco and returning tobacco straws to the field with a rotary cultivator; (3) fertilization in paddy rice season: fertilizing urea. The method breaks a conventional fertilization method under a tobacco-rice rotation mode. In the situation that the total nitrogen application rate and potassium application rate are equal in whole year, the base fertilizer with N:K being 1:4-5 is applied in the tobacco season, and with combination of straw returning to the field and application of the urea instead of a potassium fertilizer in the paddy rice season, complementary effect in nutrient absorption of the two crops, tobacco and paddy rice, is utilized better, so that the method not only increases potassium content in the tobacco and improves quality of tobacco, but also considers growth of the two crops, tobacco and paddy rice, in a two-season rotation manner at the same time, thereby guaranteeing yield of rice and achieving high-effective utilization of the potassium fertilizer.

Description

Technical field [0001] The invention relates to a method for fertilizing crops, in particular to an integrated fertilizing method for tobacco-rice rotation. Background technique [0002] Tobacco-rice crop rotation is the main planting system in southern tobacco areas, where one season of spring tobacco and one season of late rice are continuously planted throughout the year. This crop rotation mode is not only a paddy and dry crop rotation, but also a rotation of solanaceous crops and gramineous crops. It is not only beneficial to inhibit tobacco and rice diseases, but also can improve soil physical and chemical properties and balance soil nutrients. [0003] At present, there is not much research on the fertilization technology for the tobacco-rice rotation in southern Anhui tobacco area. In the actual production process, the tobacco season and the rice season are independently fertilized according to the existing non-rotation planting and fertilization methods. Although a certai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00C05G1/00C05C9/00
CPCA01C21/00C05C5/02C05C9/00C05D1/02C05F5/002C05G1/00
Inventor 沈嘉祖朝龙李田阎轶峰张保全姜超强汪文杰
Owner INST OF TOBACCO ANHUI ACADEMY OF AGRI SCI