Triple-cropping cultivation method for double cropping paddy field

A cultivation method and paddy field technology, applied in the fields of rice cultivation, plant cultivation, and botanical equipment and methods, can solve the problems of easily causing fires and traffic accidents, unfavorable paddy soil heavy metals, lack of soil nutrient elements, etc. Effects of nurturing and secondary culturing, reducing soil heavy metal pollution and increasing soil organic matter

Active Publication Date: 2014-05-07
HUNAN SOIL & FERTILIZER INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, due to the long-term continuous cropping of rice due to winter slack, it is prone to serious pests and diseases, lack of nutrients in the soil, deterioration of physical and chemical properties, and "poisoning" phenomenon of accumulation of harmful substances
Rice straw and winter crop stalks contain a lot of organic matter and nutrients needed by crops. Direct burning not only wastes precious resources, but also destroys soil structure, pollutes the air environment, and easily causes fires

Method used

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  • Triple-cropping cultivation method for double cropping paddy field
  • Triple-cropping cultivation method for double cropping paddy field
  • Triple-cropping cultivation method for double cropping paddy field

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] From September 2004 to October 2013, a 9-year long-term location experiment was carried out in the rice field of Hunan Soil and Fertilizer Research Institute. The experiment included milk vetch-double cropping rice, ryegrass-double cropping rice, rapeseed-double cropping rice. , Winter leisure-4 planting modes of double cropping rice.

[0027] Hybrid rice "Lingliangyou 211" was selected as an early rice variety in 2013, sowed on March 30, with a seed rate of 2.5kg / mu, seedlings raised on floppy disks, casted on April 28, with a density of 20,000 sticks / mu, and experimented before cast Rotary tillage of the land, while turning the winter crop straws back into the field, applying 30kg of 40% compound fertilizer (20-8-12) per mu as base fertilizer, mixing pre-emergence herbicide on April 30, applying 7.5kg of urea and 5kg of potassium fertilizer per mu , Wet irrigation was used for water management, and Daoteng, triazophos, imidacloprid, abamectin, rice blas...

Example Embodiment

[0038] Example 2

[0039] From 2005 to 2013, a long-term positioning study of different tillage methods and rice straw return in double-cropping rice fields was carried out in Tiancun Village, Huilongpu Town, Ningxiang County, Hunan Province. The experiment included double-cropping no-tillage rice straw mulch return (NTS), Four treatments: morning and evening rice double-season ploughing and rice straw return to field (CTS), morning and late rice double-season ploughing without rice straw return (CT), morning and late rice double-season rotary tillage rice straw return (RTS) 4 treatments, repeated 3 times , The area of ​​the plot is 66.7m 2 . Moisture irrigation and quantitative fertilization were carried out throughout the experiment. In 2013, the early rice variety was "Xiangzaoxian 45" and the late rice variety was "Xiangwanxian 13". The field management was basically the same as the winter fallow-double-cropping rice model in Example 1.

[0040] Soil organic matter has a stron...

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Abstract

The invention discloses a triple-cropping cultivation method for a double cropping paddy field. According to the triple-cropping cultivation method, triple cropping of crops in a year is taken as a cycle; the triple-cropping cultivation method comprises: an annual soil crop rotation comprising rotary cultivation of early rice, and free cultivation of late rice and winter crops; an annual rice field paddy-upland rotation with the combination of upland cultivation of winter crops and paddy cultivation of early rice and late rice; and an annual straw crop cultivation method for returning straws of winter crops to field and not returning the late rice straws to field. Through the method, the problems of long-term soil monoculture, continuous cropping in winter space time, straw combustion and heavy metal pollution in the current double cropping paddy field can be avoided; the content of organic matter in the soil is increased, the soil nutrient storing capability is improved, the soil heavy metal Cd pollution is reduced, the farmland ecology environment is protected and the continuous, balanced and safety production of paddy rice is achieved.

Description

technical field [0001] The invention relates to a three-round cultivation method in a double-cropping paddy field. Background technique [0002] At present, the soil cultivation method of double-cropping rice fields in southern China is mainly mechanical rotary tillage, followed by traditional animal-drawn plowing, and no-tillage cultivation is still rarely used; while the planting mode of double-cropping rice fields in southern China is mainly winter fallow-double-cropping rice, followed by rapeseed -Double-cropping rice, milk vetch-double-cropping rice and other models; the treatment method of rice straw and winter crop straw in double-cropping paddy fields is mainly incineration, followed by turning over and returning to the field. Long-term plowing and rotary tillage of double-cropping paddy fields requires a lot of human and animal labor and fuel power, which is labor-intensive and time-consuming. The soil structure is damaged, which can easily lead to soil erosion, ser...

Claims

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Application Information

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IPC IPC(8): A01G16/00A01G22/22
Inventor 汤文光肖小平唐海明杨光立
Owner HUNAN SOIL & FERTILIZER INST
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