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Mulch-carrying straw returning and planting method of upland crops of loess plateau

A technology for dryland crops and the Loess Plateau, applied in the field of crop cultivation, can solve problems affecting the sowing quality and emergence rate of next crops, low soil temperature and moisture content, difficult to decompose corn stalks, etc., and achieve good crop yield and soil fertility effect, increasing soil water content, and increasing straw decomposition rate

Inactive Publication Date: 2018-08-07
INST OF SOIL FERTILIZER & WATER SAVING AGRI GANSU ACAD OF AGRI SCI +1
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Problems solved by technology

However, the water and heat conditions in the northwest semi-arid area of ​​the Loess Plateau are insufficient, and the time interval between corn harvest and sowing of the next crop is relatively short, and this time period is late autumn and winter, and the soil temperature and moisture content are relatively low, and the corn stalks are difficult to decompose. Sowing quality and germination rate of stubble crops seriously affect crop yield

Method used

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  • Mulch-carrying straw returning and planting method of upland crops of loess plateau
  • Mulch-carrying straw returning and planting method of upland crops of loess plateau

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[0057] Specific technical solutions such as figure 1 As shown, it is especially suitable for planting in the dry land of the Loess Plateau in Gansu. It is carried out in rotation of spring corn-spring corn-spring corn-winter wheat. The first crop—spring corn, after the previous crop of wheat was harvested in mid-October, the stubble was plowed deeply in time, and the land was leveled by harrowing after plowing. At the beginning of May after the spring of the next year, divide the non-planting zone and the planting zone with wood or steel bars in the plot. The straw is crushed into 2-6cm, and every 667m 2 The amount of non-planting straw returning to the field is 500kg, and the soil layer is covered on the straw surface. Every 667m 2 Apply basal fertilizer, cover the planting belt and non-planting belt with film, and finally use a hole seeder to sow seeds in the planting belt. The corn is sown at a depth of 3-6 cm, with a plant spacing of 25-30 cm and a row spacing of 25-30...

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Abstract

The invention relates to the technical field of crop cultivation, in particular to a mulch-carrying straw returning and planting method of upland crops of loess plateau and applies to recycling of agricultural waste resources. According to a rotation planting method of multi-cropping spring corn and single-crop winter wheat, plants are grown on planting belts, straws are piled on non-planting belts for fermenting, land utilization rate is greatly increased, straw decomposing time is extended from the original 7 months to 19 months, and straw decomposition rate is greatly increased. The extended straw decomposing time helps improve soil fertility and decrease usage of chemical fertilizer. In addition, cyclic utilization of agricultural straw waste is greatly increased. The planting belts and the non-planting belts are fully mulched; seeding is carried out after mulching; returned straw temperature and water content are effectively increased, changes to the temperature and moisture in returned straw are decreased, and straw decomposition rate is further increased.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a planting method for crop stalks on the Loess Plateau dry land with film, which is suitable for the recycling of agricultural waste resources. Background technique [0002] Straw is the by-products of crops such as stems and leaves left in the field after harvesting seeds. Straw is rich in organic matter, nitrogen, phosphorus, potassium and various micronutrients. Corn is the largest food crop in my country, the sown area and per unit yield are increasing year by year, and the straw resources are extremely rich. At present, the total production of corn stalks in my country exceeds 220 million tons. Due to the thick stems and leaves of corn stalks, it is difficult to decompose when returned to the field, and its utilization has been in a state of high consumption, high pollution, and low output for a long time. In order to solve the problem of a large amount of surplus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/20A01B79/02
CPCA01G22/20A01B79/02
Inventor 俄胜哲丁宁平尚来贵李利利车宗贤王婷周海燕
Owner INST OF SOIL FERTILIZER & WATER SAVING AGRI GANSU ACAD OF AGRI SCI
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