High-yield water-saving cultivation method for rice dry direct seeding

A cultivation method, dry direct seeding technology, applied in the field of agricultural science, can solve the problems of high irrigation and fertilization amount and frequency, poor water and fertilizer retention capacity, too deep plow layer, etc., to improve soil water and fertilizer retention capacity, and the method is simple , the effect of appropriate depth

Inactive Publication Date: 2017-03-22
SHENYANG AGRI UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The invention provides a high-yield and water-saving cultivation method for dry-seeding rice, which solves the problems of uneven surface of rice dry-seeding field, too deep plow layer, poor water and fertilizer retention capacity, and many irrigation and fertilization totals and times.

Method used

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  • High-yield water-saving cultivation method for rice dry direct seeding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1, field seedling emergence test

[0017] In Shenhe District, Shenyang City, the comparison test of rice seedling emergence under the new dry direct seeding method of the present invention (abbreviation new dry direct seeding method) and conventional dry direct direct seeding method (abbreviation conventional dry direct seeding method, contrast) two kinds of sowing methods was carried out, and the rice variety is sunken rice 529 and Tiejing 4. The seeding density is 180 grains / m 2 , the sowing row spacing is 20cm, the row length is 8 meters, 8 row areas, and 3 repetitions. The seedling height was investigated at the 3-leaf stage after rice emergence, and the emergence rate in the field was calculated, that is, the field emergence rate = the number of seedlings / the number of sown grains × 100%. The results are shown in Table 1.

[0018] Table 1 Comparison of field seedling emergence between the new dry sowing method and the conventional dry sowing method

...

Embodiment 2

[0021] Embodiment 2, irrigation test

[0022] In Shenhe District, Shenyang City, a comparison test of irrigation water consumption and yield under two sowing methods, the new dry sowing method and the conventional dry sowing method (control), was carried out. The amount of irrigation water is measured by a water meter. The rice varieties were Shendao 529 and Tiejing 4. The seeding density is 180 grains / m 2 , the sowing row spacing is 20cm, the row length is 8 meters, 8 row areas, and 3 repetitions. In the mature stage of rice, the plots were actually harvested and tested. The yield test results are shown in Table 2.

[0023] Table 2 Comparison of irrigation volume and yield between the new dry direct seeding method and the conventional dry direct direct seeding method

[0024]

[0025] It can be seen from the survey results in Table 2 that the irrigation volume of the new dry sowing method was significantly lower than that of the conventional dry sowing method, and the...

Embodiment 3

[0026] Embodiment 3, nitrogen fertilizer application rate comparison test

[0027] In Liaozhong District of Shenyang City, a comparison test of nitrogen fertilizer application rate under the new dry sowing method and the conventional dry sowing method (control) was carried out. The fertilization method of the new dry sowing method is to apply 10 kg of urea and 10 kg of potassium sulfate for the first rotation of the field; for the second rotation of the field, 5 kg of urea and 10 kg of diammonium phosphate are applied; Apply 6 kg of urea as tiller fertilizer; apply 4 kg of urea as ear fertilizer at the jointing stage. The fertilization method of the conventional dry direct seeding method is to apply 10 kg of urea per mu, 10 kg of potassium sulfate, and 10 kg of diammonium phosphate during site preparation; kg of urea as ear fertilizer. The rice varieties were Shendao 632 and Tiejing 4. The seeding density is 180 grains / m 2 , the sowing row spacing is 20cm, the row length i...

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Abstract

The invention discloses a high-yield water-saving cultivation method for rice dry direct seeding, and belongs to the technical field of agricultural science. The high-yield water-saving cultivation method comprises the steps of plowing the field, applying a fertilizer, steeping the field, carrying out water harrowing and water land smoothing, and applying a herbicide one month before rice sowing; waiting till mixtures in the field surface naturally dry after two weeks; shallowly plowing the field with a rotary cultivator 1 to 3 days before rice sowing, and applying a seed fertilizer before plowing; sowing seeds, sealing soil through the herbicide, and irrigating the field; and applying the fertilizer during the four-leaf-one-core period of rice, irrigating the field, and applying the fertilizer during the elongation stage. According to the high-yield water-saving cultivation method for rice dry direct seeding, the problems that an ordinary dry direct seeding rice field is poor in water retention and fertilizer retention ability, the emergence rate in the field is low, seedlings are poor in quality, and the like, are solved, the soil water retention and fertilizer retention effect is good, the emergence rate in the rice field is high, the rice yield is increased, and the water saving effect is obvious.

Description

technical field [0001] The invention relates to a high-yield and water-saving cultivation method for dry direct seeding of rice, which belongs to the field of agricultural science and technology, and specifically includes a soil preparation method, a seeding method, a fertilization method, an irrigation method and a weed control method under the condition of direct direct seeding of rice. Background technique [0002] In recent years, the area of ​​rice direct seeding in China, especially in the northern regions, has been increasing. There are roughly two types of rice live broadcasting, one is dry direct seeding, and the other is water direct seeding. Among them, dry direct seeding is divided into dry planting dry pipe and dry planting water pipe. Both at home and abroad, dry planting water pipe has the largest scale. Water direct seeding is about sowing rice seeds on the water surface. Compared with dry direct seeding, water direct seeding has the advantage that the field ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01B79/02A01G22/22
CPCA01B79/02A01G22/22Y02P60/20
Inventor 王术董立强贾宝艳黄元财王岩王韵徐铨周婵婵肖楠丛琳孙晓森
Owner SHENYANG AGRI UNIV
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