Rice mechanical dry direct sowing culture method for yellow river delta saline-alkali soil

A cultivation method and dry direct seeding technology, applied in the agricultural field, can solve the problems of lack of rice supporting cultivation technology, etc., and achieve the effects of increasing the yield of grain crops, saving costs, and improving agricultural production efficiency.

Inactive Publication Date: 2015-11-11
SHANDONG RICE RES INST
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Problems solved by technology

[0006] Aiming at the problem of lack of supporting cultivation techniques for rice in the saline-alkali land of the Yellow River Del...

Method used

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  • Rice mechanical dry direct sowing culture method for yellow river delta saline-alkali soil

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Embodiment 1

[0029] 1 species selection

[0030] Varieties used for direct seeding in saline-alkali land should have the characteristics of good salt-alkaline tolerance, strong germination potential, and lodging resistance. The variety planted in this example: Shengdao 14.

[0031] 2 site preparation

[0032] Plow the land before winter, and then rotate it 1-2 times in spring. The land is required to be flat, and the height difference of the same plot shall not exceed 2cm.

[0033] 3 sowing

[0034] 3.1 Requirements for sowing: the soil salt content should be below 2‰;

[0035] 3.2 Sowing period: the suitable sowing period is in the middle and late May;

[0036] 3.3 Sowing method: Mechanical drilling with a drill machine, the row spacing is 16cm, the sowing depth is 1-2cm, and the soil is automatically covered and suppressed after sowing;

[0037] 3.4 Seeding rate: Before sowing, adjust the mechanical seeding rate, and set the dry seed seeding rate to 8-9kg / mu.

[0038] 4 moisture m...

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Abstract

The invention discloses a rice mechanical dry direct sowing culture method for yellow river delta saline-alkali soil. The method includes the steps of variety selection, land preparation, sowing, water management, fertilization, weed disaster prevention and treatment and pest control. A variety which is good in saline-alkali resistance, high in germination potential and resistant to lodging is selected; the sowing time is mid-to-late May, and the dry seed sowing amount ranges from 8 kg/mu to 9 kg/mu; watering is conducted in advance for salt leaching and alkali pressing according to the water management mode; in the step of weed disease prevention and treatment, phragmites australis is prevented before sowing; in the step of pest control, water earthworms need to be prevented. Based on an existing rice mechanical dry direct sowing culture method, all the aspects are improved, the corollary culture technology specially for rice mechanical dry direct sowing of the yellow river delta saline-alkali soil is formed, and therefore technical supports are provided for farmers in the region to plant rice. The method has the advantages of saving time, labor, water and cost, increasing the effect and the like, and has important significance in improving the saline-alkali soil, improving agricultural production efficiency and increasing the yield of grain crops.

Description

technical field [0001] The invention relates to a rice cultivation technology, in particular to a mechanical dry-seeding rice cultivation method suitable for the saline-alkali land of the Yellow River Delta, and belongs to the field of agricultural technology. Background technique [0002] The area of ​​saline-alkali land in the Yellow River Delta is about 6 million mu. The new silt land near the mouth of the river is very easy to return to salt and degrade after agricultural cultivation. It is the main source of secondary saline-alkali land. About 5% of agricultural land is reduced to heavy saline-alkali land or Saline wasteland. Years of agricultural production practice have proved that by planting rice and washing salt and alkali with water, saline-alkali land can be effectively improved, and severe and moderate saline-alkali land can be improved into mildly saline-alkali land. Therefore, rice is a pioneer crop for improving saline-alkali land. According to relevant dat...

Claims

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Application Information

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IPC IPC(8): A01G16/00A01G22/22
CPCA01G22/22Y02A40/10
Inventor 吴修刘奇华信彩云马加清陈博聪
Owner SHANDONG RICE RES INST
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