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Ryegrass and double-cropping early rice crop rotation cultivation method

A cultivation method and technology of ryegrass, which is applied in the field of planting ryegrass to prevent and control weeds in paddy fields in winter fallow fields and the field of rotation cultivation of double-cropping early rice with no-tillage and discarding seedlings, which can solve the problems of soil environment damage, high economic cost, and unfavorable tillage operation and other issues to achieve the effect of environmental friendliness, low cost and avoiding economic cost

Inactive Publication Date: 2014-11-05
HUNAN AGRICULTURAL UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the rapid growth of ryegrass stems and leaves, and the large and well-developed underground root system, it is not conducive to the operation of plowing agricultural machinery, and the ryegrass itself has become an obstacle before rice cultivation.
At present, ryegrass is mainly removed by spreading quicklime, applying herbicides, and increasing plowing, which also brings high economic costs and damage to the soil environment, which has become a major problem in the popularization and application of planting ryegrass in winter fallow fields.

Method used

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Embodiment 1

[0016] The implementation site is located in Anxiang County, Changde City, Hunan Province. The farmland is double-cropping rice, and other management measures remain the same.

[0017] Treatment A is winter slack (no other crops are planted after late rice harvest), plowing, application of herbicides, and transplanting by machine.

[0018] Treatment B was fallow in winter, no tillage, no herbicide application, and seedling throwing.

[0019] Treatment C is ryegrass-no-tillage and throwing seedlings. On October 20, 2012, ryegrass was sown by sowing. On the 7th, February 15th, and March 24th, ryegrass was mowed for fish farming, and fertilization was performed after each mowing. After the last mowing, the height of the remaining stubble was about 6cm, and there was no need to plow the land and apply herbicides. On March 29, the field was filled with water and the ryegrass branches and leaves gradually withered until they were soaked in water. On April 20, the ditch was opened a...

Embodiment 2

[0027] The implementation site is located in Gansha Township, Changsha County. The rice fields are double-cropping rice, and other management measures remain the same.

[0028] Treatment A is winter slack (no other crops are planted after the late rice is harvested), plowing and application of herbicides, and transplanting by machine.

[0029] Treatment B was fallow in winter, no tillage, no herbicide application, and seedling throwing.

[0030] Treatment C is winter planting ryegrass + no-tillage and throwing seedlings. The ryegrass was sown among the late rice rows in late October 2012. The ryegrass variety is the annual ryegrass "Extra High". Because there is no breeding industry near the farmland, no ryegrass is needed. For pasture, ryegrass is extensively managed without fertilization. Afterwards, no plowing was performed and no herbicides were applied. On March 18th, the fields were irrigated and soaked. At this time, the height of the ryegrass seedlings was about 60 c...

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Abstract

The invention provides a ryegrass and double-cropping early rice crop rotation cultivation method. The method specifically comprises the following steps: on 5-15 days before late rice harvest, ryegrass is inter-planted; in the middle of next March, water is irrigated and the paddy field is soaked, such that ryegrass is decomposed; water is discharged until the field is turned into a shallow paddy field; and double-cropping early rice is directly planted with a seedling-throwing manner. According to the invention, ryegrass characteristics of fast growth and low waterlogging resistance are utilized, such that growth of other weeds in the paddy field is inhibited. With the field soaking method, the ryegrass is withered and decomposed. After water discharge, early rice seedlings are planted with a tillage-free ordered seedling-throwing (spot seedling-throwing) method. According to the invention, labor and economic costs of herbicide application in the paddy field and traditional plowing are saved; herbicide harm to the environment is reduced; ryegrass can be turned into good organic fertilizer when decomposed; and paddy rice yield increase can be promoted.

Description

technical field [0001] The present invention relates to agricultural planting techniques, in particular to a crop rotation cultivation method for planting ryegrass in slack fields in winter to prevent and control weeds in paddy fields and double-cropping early rice without tillage and discarding seedlings Background technique [0002] No-tillage and seedling throwing (point throwing) cultivation is a cultivation method of directly throwing seedlings (point throwing) to cultivate rice without plowing the land. Seedling throwing (point throwing) cultivation adopts seedling trays or paper tubes to grow rice seedlings with nutrient soil clods at the root and are easy to disperse each other, and then throw the seedlings together with the nutrient soil in the air in an orderly manner. It is a cultivation method in which the roots fall into the field with gravity during the process of falling. No-tillage and seedling-throwing cultivation liberates farmers from the heavy physical l...

Claims

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Application Information

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IPC IPC(8): A01G16/00A01G22/22
Inventor 徐华勤邹应斌杨知建魏甲彬唐先亮
Owner HUNAN AGRICULTURAL UNIV
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