Cultivation method of mechanically transplanted rice seedlings

A cultivation method and a technology for machine-planting rice, which are applied in rice cultivation, fertilization methods, gardening methods, etc., can solve the problems of high technical level of seedling management and farmers' quality requirements, difficulty in controlling layer temperature and light, and rice seeds are easily damaged by heavy rain, etc. problems, to achieve the effect of strict technical requirements, high technical level and farmers' quality requirements, and avoiding the risk of failure

Inactive Publication Date: 2018-07-20
德宏州农业机械化技术推广站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of seedling raising in double-film small arch sheds are complex operation, difficult seedling management, high technical requirements, high cost, and easy to burn seedlings; the disadvantages of seedling raising in greenhouses are high cost, difficult control of layer temperature and light, difficult seedling hardening, and weak seedlings , the management is complicated, and the technical level of seedling management and the quality of farmers are high; due to the erratic climate change in the tropical and subtropical regions during the rice seedling raising season, the open-air seedling raising method without shelter will suddenly drop in temperature due to climate change, and the low temperature will make the emergence of rice seedlings not neat enough. Shading makes rice seeds vulnerable to heavy rain damage after sowing, and vulnerable to rodent damage and bird damage; double-film small arch shed seedling raising and greenhouse seedling raising suddenly heat up due to climate change, causing the seedlings to be burned by high temperature, which is not conducive to the growth and development of seedlings , resulting in the death of some seedlings, the above seedling raising methods cannot better meet the requirements of farmers in tropical and subtropical regions represented by Dehong Prefecture, Yunnan Province

Method used

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  • Cultivation method of mechanically transplanted rice seedlings
  • Cultivation method of mechanically transplanted rice seedlings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Select large, full and disease-free hybrid rice seeds as sowing rice seeds, and spread out the surface moisture of the rice seeds in a place away from direct sunlight. It is required that the rice seeds should be thin and uniform, and the thickness should not exceed 10 cm. , until the rice seeds reach the surface dry and internally wet and basically do not stick to hands, and then remove the awns and sieve for later use;

[0028] Step 2: When the daily average temperature of the breeding day exceeds 20°C, put the screened rice seeds into prochloraz with 2000 times liquid of 25% emulsion, trichloroisocyanuric acid with 500 times liquid of powder or 50% wettable powder Soak and sterilize in 250 times liquid carbendazim fungicide for 45 hours, then take out the soaked and sterilized rice seeds and rinse them with clean water for 3 to 5 times, filter out the moisture of the rice seeds, and then press the rice seeds and the seedling-promoting agent After mixing evenl...

Embodiment 2

[0035] Step 1: Select large, full and disease-free hybrid rice seeds as sowing rice seeds, and spread out the surface moisture of the rice seeds in a place away from direct sunlight. It is required that the rice seeds should be thin and uniform, and the thickness should not exceed 10 cm. , until the rice seeds reach the surface dry and internally wet and basically do not stick to hands, and then remove the awns and sieve for later use;

[0036]Step 2: When the daily average temperature of the breeding day exceeds 20°C, put the screened rice seeds into prochloraz with 2000 times liquid of 25% emulsion, trichloroisocyanuric acid with 500 times liquid of powder or 50% wettable powder Soak and sterilize in 250 times liquid carbendazim fungicide for 45 hours, then take out the soaked and sterilized rice seeds and rinse them with clean water for 3 to 5 times, filter out the moisture of the rice seeds, and then press the rice seeds and the seedling-promoting agent After mixing evenly...

Embodiment 3

[0040] Step 1: Select large, full and disease-free hybrid rice seeds as sowing rice seeds, and spread out the surface moisture of the rice seeds in a place away from direct sunlight. It is required that the rice seeds should be thin and uniform, and the thickness should not exceed 10 cm. , until the rice seeds reach the surface dry and internally wet and basically do not stick to hands, and then remove the awns and sieve for later use;

[0041] Step 2: When the daily average temperature of the breeding day exceeds 20°C, put the screened rice seeds into prochloraz with 2000 times liquid of 25% emulsion, trichloroisocyanuric acid with 500 times liquid of powder or 50% wettable powder Soak and sterilize in 250 times liquid carbendazim fungicide for 45 hours, then take out the soaked and sterilized rice seeds and rinse them with clean water for 3 to 5 times, filter out the moisture of the rice seeds, and then press the rice seeds and the seedling-promoting agent After mixing evenl...

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Abstract

The invention discloses a cultivation method of mechanically transplanted rice seedlings. According to the method, first a seedling raising field with an appropriate area is selected, seedling raisingbeds are conducted in the seedling raising field, and seedling plates are laid on the seedling raising beds, then soil which is fertile, and free of gravels, weeds and herbicide pesticide residue isselected and uniformly mixed with decomposed farmyard manure according to a certain volume ratio to produce a seedling raising substrate, the seedling raising substrate is spread onto the seedling plates, then the sterilized and germinated seed rice is sowed onto the seedling raising substrate, and a layer of seedling raising substrate is spread to cover the seed rice, finally covering is conducted with nets, during the germination growth period of the seed rice, water and fertilizer management and disease and insect pest management are strengthened until transplanting, and a method of seedling plates in combination with dry raising is adopted for seedling raising, so that robust seedlings with a certain degree of disease resistance are cultivated. The method has a high seedling emergencerate, and solves the problem that seedling raising operations of greenhouse seedling raising are complicated, demands on the technical level of managing seedlings and farmer quality are high, cost ishigh, seedling raising without a shield and in the open is conducted, seedling emergence is not enough even, after sowing, the situation of easiness of being destroyed by rain, easiness of being affected by mice and birds, etc. exists.

Description

technical field [0001] The invention belongs to the technical field of rice seedling cultivation, and in particular relates to a method for cultivating machine-transplanted rice seedlings capable of improving the emergence rate. Background technique [0002] The pace of modern agricultural development continues to accelerate, new business entities such as family farms, large grain growers, and professional grain planting cooperatives continue to develop, and the area of ​​land transfers continues to increase. Due to differences in regions, climate temperature, water conservancy conditions, economic conditions, and rice farmers' quality, a unified set of seedling raising methods cannot be applied to different regions. [0003] At present, the main rice seedling raising methods in tropical and subtropical regions represented by Dehong Prefecture in Yunnan Province include double-film small arch shed seedling raising, greenhouse seedling raising, and open-air seedling raising w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22A01C1/00A01C21/00A01G7/06
CPCA01C1/00A01C21/005A01G7/06
Inventor 杨雄帮王健腊对尹加从李毅赵强刀元威肖虎先戴有铭陈丽华李凤英任家祥张东李沂鸿杨川杨换琴李卫琴王艳
Owner 德宏州农业机械化技术推广站
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