CN105684803A

CN105684803A - Weed prevention and control method used in organic rice planting process

Info

Publication number: CN105684803A
Application number: CN201610089350.9A
Authority: CN
Inventors: 袁元荣; 袁骄艳; 袁明燕
Original assignee: Jiangsu Yuanren Organic Rice Plantation Co Ltd
Current assignee: Suzhou water flooded agricultural science and Technology Co., Ltd.
Priority date: 2016-02-05
Filing date: 2016-02-05
Publication date: 2016-06-22
Anticipated expiration: 2036-02-05
Also published as: CN105684803B

Abstract

The invention discloses a weed prevention and control method used in the organic rice planting process. The weed prevention and control method used in the organic rice planting process is low in cost, good in effect, truly free of toxin and damage and practical. The method is characterized that a rice seedling bed is irrigated 7-10 days after rice seedlings are transplanted, deep water weed control is achieved, the weed control water level is kept to be 55-65% of the height of the rice seedlings, and the water level is kept continuously for 8-10 days and nights; during the time from transplanting of the rice seedlings to water treatment, the water level is kept in the field, soil can not be exposed, and growth of weeds and weed seeds is inhibited or the weeds and the weed seeds are dead under the condition that oxygen and sunlight irradiation lack. The method is low in implementation cost, good in weed prevention and control effect and very beneficial to later growth of rice. The method solves the problems which farmers long to solve all the time but are not solved in the organic rice planting process, and has an important promoting significance in planting of organic rice.

Description

Crop smothering preventing control method in organic paddy rice planting process

Technical field

The invention belongs to proportion of crop planting technical field, specifically, this technology is a kind of method controlling weed growth and elimination weeds in the planting process of organic paddy rice。

Background technology

Manufacture of organic rice refers to and does not use the materials such as the fertilizer of chemosynthesis, pesticide, growth mediator agent at the whole period of duration of Oryza sativa L., does not also adopt the production system of biology that genetic engineering obtains and product thereof。Its core is to set up and recover the benign cycle of Agro-ecological System, to maintain the sustainable development of agricultural。Manufacture of organic rice is by manure use material and suitable farming and cultivation measure, reaches the effect increase soil fertility, and controls disease, worm, crop smothering by natural method, as efficent rotation, cultural control, biology control worm, Protect natural enemies etc.。And in the planting process of organic paddy rice, control weed growth and elimination weeds there is presently no effective way, if weeding not in time, weeds can fight for fertilizer and sunlight with Oryza sativa L., affect yield and the quality of Oryza sativa L., and crop smothering can be serious year by year, finally results in and has to use herbicide in this field, planting is not out just organic paddy rice。When herbicide can not be used, the method that artificial uprooting weed can only be adopted time many。And manually uprooting weed efficiency is low, labor intensity big, working condition is arduous。Therefore, in the planting process of organic paddy rice, control the growth of weeds and eliminate the problem that weeds are current peasant household comparatively headaches, being also the bottleneck of scale plantation organic paddy rice。

Summary of the invention

It is an object of the invention under the help without any pesticide or herbicide, it is provided that a kind of use cost is low, effective, be truly realized nontoxic and practical in the preventing control method of weeds in paddy growth process。

In order to reach above-mentioned requirements, the technical scheme is that 7-10 days it is characterized in that after rice seedlings are transplanted, pouring water to rice seedling bed, implement deep water control grass, control grass water level is maintained at the 55%-65% of rice seedlings height, continuous 8-10 keeps water level at this height round the clock, rice seedlings be transplanted to put field during this period of time in, field keeps water level can not reveal soil, allows weeds and weed seed, lacking oxygen and lacking under sunlit condition, it is suppressed that its growth or dead。

Crop smothering preventing control method in organic paddy rice planting process more specifically, is characterized in that:

(1) ridge in high rice field is repaiied: originally not high ridge, repair height to exceeding field upper surface 30 to 40cm, wide 55-65cm, it is desirable to ridge is solid firm, water-tight；

(2) deep water is filled: after rice seedlings are transplanted 7-10 days, come into effect, at this moment rice seedlings survive completely, water level is irrigated to rice seedlings height 55%-65%, continuous 8-10 water level round the clock fills the 55%-65% to rice shoot height, along with the growth of rice seedlings, height of water level need to increase every day, and determines irrigation quantity；

(3) rice field carries out continuous 8-10 and pours water after immersion round the clock, and water level is down to normally, carries out artificial removing obstinate big weeds simultaneously again, rice seedlings transplant after up to putting field, field water level can not reveal soil；

(4) along with rice seedlings tiller, growing way is luxuriant, adds deep water control grass and the artificial weeding of early stage, and while crop smothering obtains effectively preventing and treating, shallow water manages to putting field。

Described rice seedlings transplant it: line-spacing is 20-30cm, and spacing in the rows is 12-14cm, and every clump is this Seedling of 4-6。

According to the crop smothering preventing control method in the organic paddy rice planting process that such scheme is implemented, due to after rice seedlings are transplanted 7-10 days, rice seedlings survive, weed growth early stage, weeds are easily killed, it is not required that with too much water, therefore, the cost implemented is low, and the control effect of crop smothering is good, and Oryza sativa L. is highly beneficial in the growth in later stage。The invention of the method solves in organic paddy rice planting process, and peasant thirsts for solution always and do not become the problem of solution, and it serves important progradation for the plantation of organic paddy rice。

Detailed description of the invention

The present invention is further described by the following embodiment。

After rice seedlings are transplanted 7-10 days, pour water to rice seedling bed, implement deep water control grass, control grass water level is maintained at the 55%-65%, continuous 8-10 of rice seedlings height and keeps water level at this height round the clock, rice seedlings be transplanted to put field during this period of time in, field keeps water level can not reveal soil, allow weeds and weed seed, lacking oxygen and lacking under sunlit condition, it is suppressed that its growth or dead。

Crop smothering preventing control method in organic paddy rice planting process more specifically:

(1) repair the ridge in high rice field: originally not high ridge, repair high to high 30 to the 40cm in face, field, wide 55-65cm, it is desirable to ridge is solid firmly water-tight；

(2) deep water is filled: rice seedlings transplanted (rice transplanting) after 7-10 days, come into effect, at this moment rice seedlings survive completely, water level is irrigated to rice seedlings height 55%-65%, continuous 8-10 water level round the clock fills the 55%-65% to rice shoot height, along with the growth of rice seedlings, height of water level need to increase every day, and determines irrigation quantity；

(3) rice field carry out continuous 8-10 round the clock pour water immersion after, water level is down to normally (shallow water), carry out the obstinate big weeds of artificial removing more simultaneously, by deep water control grass, the crop smothering of 70% is controlled, and greatly reduces with cost during weeder, but there is also the need to a problem is described, until putting field after rice seedlings are transplanted, field water level can not reveal soil；

(4) along with rice seedlings tiller, growing way is luxuriant, adds deep water control grass and the artificial weeding of early stage, and while crop smothering obtains effectively preventing and treating, shallow water manages to putting field；

(5) while implementing 8-10 deep water control round the clock grass, the normal effective tillering of Oryza sativa L. and growth can be have impact on, cause the deficiency of field rice head quantity, cause the underproduction of Oryza sativa L., in order to make up this situation, Oryza sativa L. is when transplanting (rice transplanting), the density in the field of rice seedlings have to be increased, the general line-spacing of such as transplanting is 30cm, spacing in the rows is 16-18cm, every clump is this Seedling of 3-5, and the density of presently implemented cultivation is line-spacing 20-30cm, spacing in the rows is 12-14cm, every clump is this Seedling of 4-6, cause the deficiency of tiller making up deep water control grass, better promote the high yield of organic paddy rice。

Claims

1. the crop smothering preventing control method in organic paddy rice planting process, it is characterized in that: it is characterized in that 7-10 days after rice seedlings are transplanted, pouring water to rice seedling bed, implement deep water control grass, control grass water level is maintained at the 55%-65% of rice seedlings height, continuous 8-10 keeps water level at this height round the clock, rice seedlings be transplanted to put field during this period of time in, field keeps water level can not reveal soil, allows weeds and weed seed, lacking oxygen and lacking under sunlit condition, it is suppressed that its growth or dead。

2. the crop smothering preventing control method in organic paddy rice planting process, is characterized in that:

3. the crop smothering preventing control method in organic paddy rice planting process according to claim 1 and 2, is characterized in that described rice seedlings transplant it: line-spacing is 20-30cm, and spacing in the rows is 12-14cm, and every clump of number is this Seedling of 4-6。