Direct-sowing planting method for rice

A planting method and rice technology, applied in the direction of rice cultivation, etc., can solve the problems of inability to irrigate and wash salt, not suitable for dry farming, and not maintaining water layers.

Inactive Publication Date: 2018-11-30
周小群
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also many problems in the cultivation of dry rice
For example, dry land preparation is more labor-intensive, especially in areas with heavy clay soil; it is not possible to irrigate and wash salt before sowing, and it is not suitable for

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A rice direct seeding planting method, comprises the steps:

[0020] (1) Soil preparation stage before sowing: 16 days before sowing, weeding with destructive herbicides; 5 days before sowing, dry rotary plowing and harrowing, so that the loose soil layer is 20cm; base fertilizer is applied within 2 days before sowing, and dry rotary harrowing again , make the loose soil layer and the base fertilizer mix evenly; Keep the relative water content of the soil more than 80%; The base fertilizer is a long-acting slow-release compound fertilizer 50kg / 667m2; The dosage is 11kg / 667m2, 15kg / 667m2, 5.2kg / 667m2 in turn;

[0021] (2) Seed soaking and sowing: Paddy rice seeds are treated with the interval soaking method for 50 hours to obtain soaking seeds. The interval soaking method is alternate between soaking seeds and exposed seeds, and the described soaking time is 14 hours, and the described exposure time is 12 hours; then Germinate the soaked seeds at 35°C for 18 hours to ob...

Embodiment 2

[0025] A rice direct seeding planting method, comprises the steps:

[0026] (1) Soil preparation stage before sowing: 18 days before sowing, weeding with herbicides; 7 days before sowing, dry rotary plowing and harrowing to make the loose soil layer 23cm; base fertilizer was applied within 4 days before sowing, and dry rotary harrowing again , make the loose soil layer and the base fertilizer mix evenly; keep the relative water content of the soil more than 80%; the base fertilizer is a long-acting slow-release compound fertilizer 60kg / 667m2; The dosage is 13kg / 667m2, 18kg / 667m2, 5.8kg / 667m2 in turn;

[0027] (2) Seed soaking and sowing: Paddy rice seeds are treated with interval seed soaking method for 55 hours to obtain soaked seeds. The interval seed soaking method is alternating between soaking seeds and exposed seeds, the soaking time is 16 hours, and the exposed seed time is 14 hours; then Germinate the soaked seeds at 38°C for 26 hours to obtain germinated seeds; dry t...

Embodiment 3

[0031] A rice direct seeding planting method, comprises the steps:

[0032](1) Soil preparation stage before sowing: 16-18 days before sowing, weeding with herbicides; 6 days before sowing, dry rotary plowing and harrowing, so that the loose soil layer is 21cm; base fertilizer is applied within 3 days before sowing, and dry rotary again Rake the ground to make the loose soil layer and the base fertilizer evenly mixed; keep the relative water content of the soil above 80%; the base fertilizer is a long-acting slow-release compound fertilizer 55kg / 667m2; , the application rate is 11-13kg / 667m2, 15-18kg / 667m2, 5.5kg / 667m2;

[0033] (2) Seed soaking and sowing: Paddy rice seeds are processed by interval seed soaking method for 53 hours to obtain soaked seeds. The interval seed soaking method is alternating between soaking seeds and exposed seeds, and the described seed soaking time is 15 hours, and the described exposed seed time is 13 hours; then Germinate the soaked seeds at 37...

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PUM

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Abstract

The invention discloses a direct-sowing planting method for rice. The direct-sowing planting method comprises the following steps: (1) a land preparation stage before sowing; (2) seed soaking and sowing; (3) covering; and (4) management after sowing. By using the direct-sowing planting method for rice on a dry land, disclosed by the invention, water soil preparation is changed into dry soil preparation or no tillage, so that a great deal of water for tillage and soil preparation is saved; rice seedling transplanting is changed into direct sowing on a dry land, so that the field operation process is simplified, production employments are reduced, and the labor intensity is obviously reduced; rice planting on a paddy field is changed into rice planting on the dry land, and rice can be planted on the dry land with irrigation conditions due to no need of maintaining a water layer, so that the rice planting range is widened; water-layer management is changed into anhydrous layer management,so that the aim of meeting physiological water demands of rice plants is mainly achieved, and the utilization rate of water is obviously increased; and the physical and chemical properties of direct-sowing planting soil for rice on the dry land are better than those in a flood irrigation state, the soil permeability is good, the growth and development of rice seedlings are good, branch roots androot hairs are developed, grain filling and fruit setting are favorably realized, and the thousand seed weight is relatively high.

Description

technical field [0001] The invention relates to a rice direct seeding planting method. Background technique [0002] Rice is the largest food crop in my country, and it is also the largest user of water use. About 70% of agricultural water is used for rice irrigation. With the growth of population, the development of cities and industries, the change of global climate and the aggravation of environmental pollution, the water resources used for crop irrigation are becoming more and more scarce, which seriously threatens the development of crops, especially rice production. [0003] The direct seeding planting method of rice in dry land is developed from the direct seeding method of rice, that is, selecting drought-tolerant varieties, direct seeding in dry land conditions, long seedlings, and using rainwater and proper irrigation in the middle and late stages to meet the water demand of rice plants. rice method. In the 1950s, some state-owned farms in the northern rice regio...

Claims

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Application Information

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IPC IPC(8): A01G22/22
Inventor 周小群
Owner 周小群
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