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Rice planting method capable of controlling weedy rice

A planting method and technology of weedy rice, applied in the field of rice cultivation, can solve problems such as inability to kill, difficult to control, increase, etc., and achieve the effect of solving survival and reproduction and reducing production costs

Inactive Publication Date: 2018-11-02
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Weedy rice is of the same type as paddy rice, and common rice field herbicides cannot kill it, and its control is difficult, and the number of weedy rice is increasing year by year

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Step 1. Soil preparation and fertilization: 2.5 weeks before planting, mechanically plow and prepare the land. The field arrangement is the same as that of conventional machine-transplanted fields, and base fertilizer is applied before machine-transplanted. Keep the field moist or with a water layer of 2 cm to promote the germination of weedy rice and weeds; 4 days before rice planting, kill the weedy rice and weeds with destructive herbicides, and the fields using destructive herbicides need to be drained , machine transplanted after irrigation; if mechanical rotary tillage method is used to kill weedy rice and weeds, tillage 3 days before rice planting.

[0036] Step 2. Germination and sowing: Soak the seeds with medicaments such as soaking seeds for 48 hours, and accelerate germination at 35°C for 24 hours. Adopt matrix seedling raising, each seedling tray (9 inch seedling tray) is planted 65 grams (hybrid rice), 105 grams (conventional rice) by dry grain;

[0037] ...

Embodiment 2

[0042] A rice planting method for controlling weedy rice, comprising the following steps:

[0043] Step 1. Soil preparation and fertilization: 2 weeks before planting, mechanically plow and prepare the land, the field arrangement is the same as the conventional machine-transplanted field, and the basal fertilizer is applied before machine-transplanted; keep the field moist or the water layer is 1 cm to promote the germination of weedy rice and weeds; 5 days before rice planting, kill the weedy rice and weeds with a herbicide. The fields using the herbicide need to be drained and transplanted by machine after irrigation; if the weedy rice is killed by mechanical rotary tillage and weeds, plowed 2 days before rice planting.

[0044] Step 2. Germination and sowing: Soak the seeds with medicaments such as soaking seeds for 45 hours, and accelerate germination at 38°C for 20 hours. Adopt seedling trays to raise seedlings, and each seedling tray (9-inch seedling tray) is sown 70 gr...

Embodiment 3

[0050] A rice planting method for controlling weedy rice, comprising the following steps:

[0051]Step 1. Soil preparation and fertilization: Mechanical plowing and land preparation 3 weeks before planting, field arrangement is the same as conventional machine-transplanted field, and base fertilizer is applied before machine-transplanted; keep the field moist or the water layer is 3 cm to promote the germination of weedy rice and weeds; 4 days before rice planting, kill the weedy rice and weeds with a herbicide that kills the weeds. The fields that use the herbicide need to be drained and transplanted by machine after irrigation; if the weedy rice is killed by mechanical rotary tillage and weeds, plowed 3 days before rice planting.

[0052] Step 2. Germination and sowing: Soak the seeds for 50 hours with medicaments such as soaking seeds, and accelerate germination at 32°C for 28 hours. Adopt seedling trays to raise seedlings, each seedling tray (9-inch seedling tray) is sown...

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PUM

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Abstract

The invention discloses a rice planting method capable of controlling weedy rice. The rice planting method includes the steps that mechanical tillage and soil preparation are performed 2-3 weeks before planting, the field is prepared like a conventional machine transplanting field, and base fertilizer application and weed removal are performed before machine transplanting; a diisothiocyanatomethane agent is adopted for soaking seeds and accelerating germination, and seedling trays are adopted for culturing seedlings; the seedling trays are placed in a greenhouses for stacked seedling emergenceand culture, timely moisture management is performed, and disease and pest control is performed; when rice reaches the seedling age, the seedlings are dug out for machine transplanting together withthe trays; at the middle and later stage of tillering, manual pullout is adopted; at the heading stage, manual pullout or cutoff is adopted; before the rice enters the flowering and fruiting stage, weeds are completely removed; a conventional method is adopted for field management. The rice planting method can effectively prevent the survival and reproduction of weedy rice seeds, realize the direct sowing of rice, reduce the production cost and prevent the weedy rice harm caused by the direct sowing of rice; the rice planting method is a green and ecological agronomic control method for weedyrice and realizes the sustainable production of rice.

Description

technical field [0001] The invention belongs to the technical field of rice cultivation, and in particular relates to a rice cultivation method for controlling weedy rice. Background technique [0002] Rice is the main food crop in my country, and more than 60% of the population in China takes rice as the staple food. The increase in total rice output has also improved the living standards of our people. The rice planting area in my country is wide and the planting seasons are diverse. The way rice is grown has undergone major changes since the 1970s. With social and economic development and the transfer of rural labor force, rice planting has transformed from manual transplanting to labor-saving and cost-saving machine transplanting and direct seeding. In recent years, with the support and promotion of policies in various places, the area of ​​machine-transplanted rice has occupied an important position. However, the technical content of rice machine transplanting is hi...

Claims

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Application Information

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IPC IPC(8): A01G22/22
CPCA01G22/22
Inventor 朱德峰徐一成陈惠哲
Owner CHINA NAT RICE RES INST
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