Cultivation method for improving yield per mu of rice

A cultivation method and rice technology, applied in rice cultivation, fertilization method, fertilization device, etc., can solve the problems of not reaching the effective number of panicles, affecting the quality of rice, shortage, etc., to shorten hole spacing, widen row spacing, and increase rice yield Effect

Inactive Publication Date: 2020-05-22
陈景海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The basic number of seedlings per square meter is seriously insufficient. In order to obtain more effective spikes within the limited tillering time, farmers have to use excessive chemical fertilizers to promote tillering; the result is that not only did not reach 450 effective spikes per square meter, The yield of rice per mu has always hovered at 1300 jin, which is currently a bottleneck for increasing the yield of rice in the north
Moreover, due to excessive chemical fertilizer and pesticide residues in the grain, the quality of rice is affected.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A cultivation method for improving rice yield per mu, comprising the following steps:

[0022] S1. According to the soil properties and climate characteristics of the planting area, select plump seeds with good stress resistance and high yield;

[0023] S2, the selected seeds are aired, the airing time is 6 hours, and the airing period is selected at noon;

[0024] S3. Pour the sun-dried seeds into 0.2% salt water, pick out the plump seeds and wash them with water for 2-4 times;

[0025] S4, seeds are poured into 1% quicklime water for disinfection, and the water surface is 8 centimeters away from the seeds;

[0026] S5, cultivate seedlings, temperature is controlled at 19~31 degrees centigrade, and humidity is controlled according to weather conditions, it is best when the seedling grows to 4 leaves and 1 heart leaf, and when the seedling is 13 centimeters high, select a suitable ambient temperature for transplanting;

[0027] S6, chemical weeding, use 100 grams of 4...

Embodiment 2

[0032] A cultivation method for improving rice yield per mu, comprising the following steps:

[0033] S1. According to the soil properties and climate characteristics of the planting area, select plump seeds with good stress resistance and high yield;

[0034] S2, the selected seeds are aired, the airing time is 8 hours, and the airing period is selected at noon;

[0035] S3. Pour the sun-dried seeds into 0.25% salt water, pick out the plump seeds and wash them with water for 3 times;

[0036] S4, seeds are poured into 1.5% quicklime water for disinfection, and the water surface is 10 centimeters away from the seeds;

[0037] S5, cultivate seedlings, temperature is controlled at 19~31 degrees centigrade, and humidity is controlled according to weather conditions, it is best when the seedling grows to 4 leaves and 1 heart leaf, and when the seedling is 13 centimeters high, select a suitable ambient temperature for transplanting;

[0038] S6. Chemical weeding. Before transplan...

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PUM

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Abstract

The invention discloses a cultivation method for improving the yield per mu of rice. The cultivation method is characterized by comprising the following steps: S1, selecting full seeds with good stress resistance and yielding ability according to soil properties and climatic characteristics of a planting area; S2, airing selected seeds for 6 to 10 hours; S3, treating aired seeds; S4, disinfectingthe seeds; S5, cultivating rice seedlings; S6, carrying out chemical weeding; S7, lengthening a shaft for mounting a planting arm in a rotary box of an improved rice transplanter by 5 cm, namely respectively widening a row spacing by 5 cm to reach an average row spacing of 35 cm so as to achieve the purposes of widening the row spacing and simultaneously shortening a hole spacing; S8, carrying outregular fertilization, wherein fertilizer application is performed three days after transplanting to promote green turning, and in a tillering beginning period, tillering fertilizer reapplication andtimely booting fertilizer application are performed; and S9, regularly irrigating a rice field. The cultivation method provided by the invention has the advantages of increasing the yield per mu of the rice, reducing the usage amount of a pesticide and a fertilizer and reducing pesticide residues.

Description

technical field [0001] The invention relates to the technical field of rice planting, in particular to a cultivation method for improving rice yield per mu. Background technique [0002] The northern japonica rice-growing areas, especially the three northeastern provinces, basically borrowed rice-growing techniques from Japan. Especially in recent years, in order to solve the problem of light in many places, the density of transplanting rice seedlings is 9×5 and 9×6 inches. The basic number of seedlings per square meter is seriously insufficient. In order to obtain more effective panicles within the limited tillering time, farmers have to use excessive chemical fertilizers to promote tillering; the result is that not only did not reach 450 effective panicles per square meter, The yield of rice per mu has always hovered at 1300 jin, which is currently a bottleneck for increasing the yield of rice in the north. Moreover, due to excessive chemical fertilizer and pesticide res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22A01C21/00
CPCA01C21/005A01G22/22
Inventor 陈景海
Owner 陈景海
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