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Method for preventing and controlling weed damage by directly sowing rice in waterflooding mode

A flooding and paddy rice technology, applied in rice cultivation, horticultural methods, botany equipment and methods, etc., can solve the problems of high labor cost, low rice seedling emergence rate, etc., to reduce pollution, inhibit the growth of weeds, and inhibit moss the effect of

Pending Publication Date: 2021-11-05
HUNAN YUANCHUANG SUPER RICE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems of long-term use of herbicides in the prior art to pollute the environment, weeds will produce drug resistance, the labor cost of manual weeding is high, and the rice seedling emergence rate is not high when ordinary flooding direct seeding prevents and controls weeds, the purpose of the present invention is to provide A method for preventing and controlling weeds by planting rice in deep water, which can significantly inhibit the growth of weeds on the premise of reducing costs and not polluting the environment

Method used

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  • Method for preventing and controlling weed damage by directly sowing rice in waterflooding mode
  • Method for preventing and controlling weed damage by directly sowing rice in waterflooding mode
  • Method for preventing and controlling weed damage by directly sowing rice in waterflooding mode

Examples

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Embodiment 1

[0024] A method for preventing and controlling weeds by using flooded rice for direct seeding, comprising the following steps:

[0025] (1) Soil preparation and flat field: Choose a field with smooth and convenient water inflow and drainage, flat self-height, and uniform fertility; for land preparation, the height difference of the field is 2 cm, and the seeding ditch is opened, the depth of the seeding ditch is 1 cm, and the direct seeding ditch does not collapse within 5 days; Height greater than 15cm;

[0026] (2) Base fertilizer application: Deeply apply base fertilizer at a place 4.5cm away from the seeding ditch, and the depth of fertilization is greater than 10cm; the base fertilizer is a compound fertilizer, wherein N:P 2 o 5 :K 2 O=15:15:15, the dosage is 550kg / hm 2 ;

[0027] (3) Sowing deep seeding: sow rice seeds in the sowing ditch, collapse the seeds into the soil, and bury the seeds 0.5cm deep in the soil to ensure that the surface of the field is smooth and...

Embodiment 2

[0031] A method for preventing and controlling weeds by using flooded rice for direct seeding, comprising the following steps:

[0032] (1) Soil preparation and flat field: Choose a field with smooth and convenient water inflow and drainage, self-height and flatness, and uniform fertility; for land preparation, the field height difference is 1 cm, and the seeding ditch is opened. The seeding ditch is 1.2 cm deep and the direct seeding ditch does not collapse within 5 days; The ridge height is greater than 15cm;

[0033] (2) Base fertilizer application: Deeply apply base fertilizer at a distance of 5.0 cm from the seeding ditch, and the depth of fertilization is greater than 10 cm; the base fertilizer is a compound fertilizer, wherein N:P 2 o 5 :K 2 O=15:15:15, dosage is 600kg / hm 2 ;

[0034] (3) Sowing deep seeding: Sow rice seeds in the sowing ditch, collapse the seeds into the soil, and bury the seeds in the soil at a depth of 0.6 cm to ensure that the surface of the fie...

Embodiment 3

[0039] A method for preventing and controlling weeds by using flooded rice for direct seeding, comprising the following steps:

[0040] (1) Soil preparation and flat field: Choose a field with smooth and convenient water inflow and drainage, self-leveling, and uniform fertility; for land preparation, the field height difference is 0.5 cm, and the seeding ditch is opened, the depth of the seeding ditch is 1.5 cm, and the direct seeding ditch does not collapse within 5 days; , the ridge height is greater than 15cm;

[0041] (2) Base fertilizer application: Deeply apply base fertilizer at a distance of 5.5cm from the seeding ditch, and the depth of fertilization is greater than 10cm; the base fertilizer is a compound fertilizer, wherein N:P 2 o 5 :K 2 O=15:15:15, the dosage is 580kg / hm 2 ;

[0042] (3) Sowing deep seed: rice seeds are sown in the sowing ditch, the seeds are collapsed into the soil, and the seeds are buried 0.8cm deep in the soil to ensure that the surface of ...

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Abstract

The invention belongs to the technical field of crop planting, and particularly relates to a method for preventing and controlling weed damage by directly sowing rice in a waterflooding mode, which comprises the following operation steps: (1) variety selection, (2) soil preparation and field leveling, (3) base fertilizer application, (4) deep seeding, (5) waterflooding weeding, (6) auxiliary weeding, and (7) conventional cultivation management. According to the method, the purpose of preventing and controlling weed damage is achieved by directly sowing rice in a waterflooding mode. The environmental pollution caused by excessive herbicide application is avoided, and meanwhile, the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of crop planting, in particular to a method for preventing and controlling weed damage by using flooded rice for direct seeding. Background technique [0002] Weeds in rice fields compete with rice for space, sunlight, water, fertilizer, gas, heat and other resources, weakening the photosynthesis of rice plants, resulting in poor growth of rice, and a decline in yield and quality; at the same time, many weeds are also intermediate hosts or hosts of rice diseases and insects. Overwintering hosts can induce or aggravate the damage of rice diseases and insect pests. In rice cultivation, weeds include grasses, sedges, and the like. Gramineae weeds begin to damage rice in the early growth stage, while Cyperaceae and other weeds begin to damage rice in the middle stage of rice growth. Stephaniaceae proliferates in large quantities in the alternating wet and dry environment, and weeds such as weeds and algae are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22A01G7/06
CPCA01G22/22A01G7/06
Inventor 张玉烛卢浩宇邓启云欧阳翔刘洋伍福根
Owner HUNAN YUANCHUANG SUPER RICE TECH
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