High-yield and high-quality cultivation method for regenerated rice after mechanical harvest with reduced mechanical rolling
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A technology of mechanical rolling and cultivation methods, which is applied in the field of crops, can solve the problems of no research on the degree of sun-drying, and achieve the effects of reducing water resource input, increasing yield, and high-yield and high-quality cultivation
Pending Publication Date: 2019-11-22
HUAZHONG AGRI UNIV
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However, there is no research to clarify the relationship between the degree of sun-drying before harvest...
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Embodiment 1
[0025] A high-yield and high-quality cultivation method for machine-harvested ratooned rice that reduces mechanical rolling, comprising the following steps:
[0026] (1) Site selection: The test site is set at Jiupu Village, Chidong Town, Qichun County, Huanggang City, southeastern Hubei.
[0027] (2) Variety selection: Liangyou 6326, a two-line hybrid rice variety grown in a large area in Hubei Province as ratooning rice, was selected.
[0028] (3) Sowing and transplanting: Sow on March 20, 2018, avoid rainy days, choose sunny weather to sow, build a dove cover film to keep the seedlings warm, to prevent the seedlings from suffering from low temperature and cold damage, the seedling age is 35 days; transplant on April 24, The transplanting density is 13.3cm×30cm, with 2 seedlings per hole.
[0029] (4) Fertilizer application in the first season: the application rates of nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer are respectively 200kg N ha -1 、90kgP...
Embodiment 2
[0038] A high-yield and high-quality cultivation method for machine-harvested ratooned rice that reduces mechanical rolling, comprising the following steps:
[0039] (1) Site selection: The test site is set at Jiupu Village, Chidong Town, Qichun County, Huanggang City, southeastern Hubei.
[0040] (2) Variety selection: Yongyou 4949, an indica-japonica hybrid rice variety grown in a large area in Hubei Province as ratooning rice, was selected.
[0041] (3) Sowing and transplanting: Sow on March 20, 2018, avoid rainy days, choose sunny weather to sow, build a dove cover film to keep the seedlings warm, to prevent the seedlings from suffering from low temperature and cold damage, the seedling age is 35 days; transplant on April 24, The transplanting density is 13.3cm×30cm, with 2 seedlings per hole.
[0042] (4) Fertilizer application in the first season: the application rates of nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer are respectively 200kg N ha -1...
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Abstract
The invention discloses a high-yield and high-quality cultivation method for regenerated rice after mechanical harvest with reduced mechanical rolling. The method includes the following steps of (1) selection of varieties; (2) sowing and transplanting, wherein sowing is conducted around March 20 each year, and transplanting is conducted before April 30; (3) fertilizer application at the first cropping season; (4) water management at the first cropping season, wherein deeply field air-drying management is conducted before the mechanical harvest at the first cropping season; (5) determination ofsoil hardness at the first cropping season; (6) mechanical harvest at the first cropping season, wherein when the maturity at the first cropping season reaches about 90%, the rice at the first cropping season is harvested by a means of harvester, the stubble height is 35-45 cm, and the pulvinus of the top second leaf is reserved; (7) fertilizer application at the regeneration season; (8) water management at the regeneration season, wherein the field is irrigated with 1-2 cm of shallow water immediately after the rice at the first cropping season is harvested, and the field is irrigated with 3-5 cm deep water after axillary buds of the rice stubbles damaged by mechanical crushing grow more than 10 cm; (9) mechanical harvest at the regeneration season, wherein after all the regenerated riceis mature, the regenerated rice is harvested by means of the harvester; (10) comprehensive prevention and control of pests and diseases. By adopting the high-yield and high-quality cultivation methodfor the regenerated rice after mechanical harvest with reduced mechanical rolling, the yield of a rolled area after mechanical harvest of the rice at the first cropping season is significantly increased, the yield of the rice at the regeneration season is increased by 8.49%-13.89% compared with a slightly sun-dried field, and at the same time, the processing and appearance quality of the rice areimproved.
Description
technical field [0001] The invention belongs to the technical field of crops, and in particular relates to a high-yield and high-quality cultivation method for machine-harvested rattan rice that reduces mechanical rolling. Background technique [0002] Raisoning rice refers to the planting mode of using the dormant buds surviving on the rice stubble after the first harvest, adopting certain cultivation and management measures to make them germinate into regeneration tillers, leading to earing, flowering, and fruiting, and then harvesting a season of rice. Raising rice has the advantages of short growth period, high daily output, low production cost, and high economic benefits. It is the best choice for the southern rice areas in my country where there is a surplus of heat for one-crop rice and insufficient heat for double-crop rice, and for double-crop rice areas where only one-season rice is grown. It is one of the effective measures to increase the multiple cropping index, ...
Claims
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Application Information
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