A kind of mechanical sowing method for fast cropping in wheat season in sticky wet soil in rice-wheat rotation area

A technology for mechanical seeding and rice and wheat is applied in the field of plant cultivation, which can solve the problems of difficulty in achieving full and strong seedlings after sowing, hurried sowing of rice stubble and wheat, unfavorable high yield of wheat, etc. The effect of improving the quality of sowing operations and improving the passability

Active Publication Date: 2021-12-31
JIANGSU ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the large-scale popularization and application of light and simple planting methods such as indica to japonica and machine transplanting, the annual season of rice and wheat in Jiangsu is very prominent. In addition, it takes time to return the full amount of straw to the field, and the sowing of rice stubble and wheat is often rushed.
The relative moisture content of the soil often exceeds 80% after the rice is harvested, and the soil is relatively sticky and wet. The conventional wheat machine drill will cause serious shortage of seedlings and broken ridges. It is difficult to achieve full seedlings and strong seedlings after sowing, which is not conducive to high wheat yield.
The difficulty of rice stubble wheat production at the present stage is mainly concentrated in the stage of soil preparation and sowing. How to achieve high-quality mechanical sowing under the condition of large-scale production is the main technical bottleneck faced by the southern rice stubble wheat production at the present stage

Method used

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  • A kind of mechanical sowing method for fast cropping in wheat season in sticky wet soil in rice-wheat rotation area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) On December 1st, apply 1000kg / mu of decomposed organic fertilizer in the seedling board, rotate tillage twice evenly, and the depth of rotary tillage is 12cm, and use 45% per mu half month before sowing (N:P 2 o 5 :K 2 The O ratio is 15:15:15) 40kg of compound fertilizer and 20kg of urea are applied to the reserved seedling board, and then the fertilizer and soil are mixed evenly with a rotary tiller to a depth of 8cm, and finally leveled and compacted for use .

[0049] (2) Select Xudao No. 9, hard disk (specification 58cm×28cm) for seedling raising on hard ground, the seeding rate per tray is 80g, and after sowing and emergence, spray water once every day before 7:00 am and after 6:00 pm, so that the seedling board is in the ditch There is no water accumulation, and the pan soil is water-filled and breathable. At the 3-leaf stage of the seedlings, 150g of 15% paclobutrazol is evenly sprayed on each acre of leaf surface for chemical control.

[0050] (3) After t...

Embodiment 2

[0055] (1) On December 10, 1500kg / mu of decomposed organic fertilizer was applied to the seedling board, and the rotary tillage was evenly performed twice, with a depth of 15cm, and 45% per mu for half a month before sowing (N:P 2 o 5 :K 2 The O ratio is 15:15:15) 40kg of compound fertilizer and 20kg of urea are applied to the reserved seedling board, and then the fertilizer and soil are mixed evenly with a rotary tiller to a depth of 10cm, and finally leveled and compacted for use .

[0056] (5) Select Xudao No. 9, hard disk (specification 58cm×28cm) for hard seedling raising, the seeding rate per tray is 90g, and after sowing and emergence, spray water once every day before 7:00 am and after 6:00 pm, so that the seedling boards are in the ditch There is no water accumulation, and the pan soil is water-filled and breathable. At the 3-leaf stage of the seedlings, 200g of 15% paclobutrazol is evenly sprayed on each acre of leaves for chemical control.

[0057] (6) After rice...

Embodiment 3

[0062] (1) On November 29, 1300kg / mu of decomposed organic fertilizer was applied to the seedling board, and the rotary tillage was evenly performed twice, with a depth of 13cm, and 45% per mu in the first half month of sowing (N:P 2 o 5 :K 2 The O ratio is 15:15:15) 40kg of compound fertilizer and 20kg of urea are applied to the reserved seedling board, and then the fertilizer and soil are mixed evenly with a rotary tiller to a depth of 9cm, and finally leveled and compacted for use .

[0063] (8) Select Xudao No. 9, hard disk (specification 58cm×28cm) for seedling raising on hard ground, the seeding rate per tray is 85g, and after sowing and emergence, spray water once every day before 7:00 am and after 6:00 pm, so that the seedling boards are in the ditch There is no water accumulation, and the pan soil is water-filled and breathable. At the 3-leaf stage of the seedlings, 200g of 15% paclobutrazol is evenly sprayed on each acre of leaves for chemical control.

[0064] (9...

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Abstract

The invention provides a mechanical sowing method for quick stubble grafting in the wheat season in sticky wet soil in a rice-wheat rotation area, and belongs to the technical field of plant cultivation. Aiming at the unique characteristics of rice stubble and wheat season stress and soil stickiness and humidity in Huaibei area of ​​Jiangsu Province, combined with the constraints of full rice straw returning to the field, the invention develops a mechanical sowing method for fast crop stubble in sticky wet soil in the rice-wheat rotation area, including rice harvesting and The steps of returning straw to the field, wheat sowing at the right time and moisture content, and ditching and suppression have important practical significance for alleviating seasonal conflicts, improving the quality, efficiency and benefit of sowing operations, and achieving green and efficient increases in grain production and income. The invention has good adaptability to different moisture conditions, soil quality, etc., has good seeding quality and high operation efficiency, and is especially suitable for large-scale production of rice stubble and wheat.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and in particular relates to a mechanical sowing method for fast cropping in wheat season in sticky wet soil in a rice-wheat rotation area. Background technique [0002] Double cropping of rice and wheat is one of the main grain planting systems in my country. The area of ​​double cropping of rice and wheat in the country is about 80 million mu. Jiangsu is the most typical double cropping area of ​​rice and wheat in my country. The area of ​​rice stubble and wheat perennial is 25 to 26 million mu. Rice stubble is the main type of wheat crop in Jiangsu, accounting for about 70% in Huaibei region, and more than 80% in central and southern Jiangsu regions. Due to the large-scale popularization and application of light and simple planting methods such as indica to japonica and machine-transplanted rice seedlings, the contradiction between rice and wheat annual seasons is very prominent in J...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/20A01B79/02A01C21/00
CPCA01G22/20A01B79/02A01C21/005
Inventor 顾克军顾东祥张传辉张斯梅吴晶晶杨四军
Owner JIANGSU ACAD OF AGRI SCI
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