Close planting cultivation method for returning corn strips for corn seeds

A cultivation method and technology of corn sticks, applied in the field of farmland soil fertilization and cultivation, can solve the problems of the influence of emergence rate, large pores, dead seeds, etc.

Pending Publication Date: 2021-06-04
INST OF CROP SCI CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, conventional farming methods such as deep plowing of straw and no-tillage mulching and returning to the field, and the use of equal row spacing at the same time will easily lead to insufficient land fertility, make the soil too loose, and have too many large pores, which will cause wind to run away and prevent the soil and The seeds are better tightly combined, which is bound to have an impact on the emergence rate, especially under drought conditions, and the phenomenon of "dead seeds" is prone to occur
In addition, when the straw is dir

Method used

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  • Close planting cultivation method for returning corn strips for corn seeds
  • Close planting cultivation method for returning corn strips for corn seeds
  • Close planting cultivation method for returning corn strips for corn seeds

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Strip-to-strip dense planting cultivation method: before sowing, save the previous stubble with a height of 30cm, crush and remove the stubble during sowing, and push the broken straw from the sowing belt to the non-sowing belt through the active stubble pusher. The width is 90cm, and the decomposed mixture is added and mixed with the straw, mixed in the 28cm soil layer and suppressed. Afterwards, three rows were used as a group, wherein two rows were planted with corn, and one row was used as an empty row to carry out corn cultivation and planting. The sowing density was 3500 plants / mu, the planting depth was 5 cm, and the fertilization depth was 8 cm. In the coming year, the corn sowing belt and the non-seeding belt area will be planted in rotation.

Embodiment 2

[0037] Strip-to-strip dense planting cultivation method: before sowing, save the previous stubble with a height of 30cm, crush and remove the stubble during sowing, and push the broken straw from the sowing belt to the non-sowing belt through the active stubble pusher. The width is 95cm, and the decomposed mixture is added and mixed with the straw, mixed in the 28cm soil layer and suppressed. Afterwards, a group of four lines is used to continuously plant three rows and one row, and the density of plants is increased through fixed rows to control the ventilation and light transmission of the group. The planting density is 4500 plants / mu, the planting depth is 5cm, and the fertilization depth is 5 cm. It is 8cm. In the coming year, the corn sowing belt and the non-seeding belt area will be planted in rotation.

Embodiment 3

[0039] Strip-to-strip dense planting cultivation method: before sowing, save the previous stubble with a height of 30cm, crush and remove the stubble during sowing, and push the broken straw from the sowing belt to the non-sowing belt through the active stubble pusher. The width is 100cm, and the decomposed mixture is added and mixed with the straw, mixed in the 28cm soil layer and suppressed. Afterwards, the five lines are grouped, four rows are planted continuously and one row is empty, and the four-pitch cultivation is carried out to improve the population quality by shrinking the plants and increasing the density. The sowing density is 5500 plants / mu, the planting depth is 5cm, and the fertilization depth is 8cm. In the coming year, the corn sowing belt and the non-seeding belt area will be planted in rotation.

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Abstract

The invention provides a close planting cultivation method for returning corn strips for corn seeds, and belongs to the technical field of farmland soil fertilization cultivation. The method comprises the following steps: stubbles of previous straw remain for preservation, the straw is crushed and subjected to stubble cleaning during seeding, the crushed straw is pushed from a seeding zone to a non-seeding zone, the straw of the non-seeding zone is mixed and stirred with a soil layer, pressing is carried out, and corn is planted in a stubble-pushing seeding zone to realize space planting cultivation. In the next year, seeding zone and non-seeding zone areas of the corns are subjected to alternate cropping, the seeding quality and the soil fertility are improved under the condition of a large amount of straw, and the effects of improving the quality, saving cost and increasing production and income of spring corns are achieved.

Description

technical field [0001] The invention relates to the technical field of farmland soil fertilization and cultivation, in particular to a method for densely planting corn strips and strips. Background technique [0002] In the dry farmland in northern my country, there are generally problems such as large amount of straw, difficulty in returning straw, and poor quality of sowing and seedling emergence. At the same time, long-term shallow tillage operations make the soil plow layer shallower, the quality of the plow layer deteriorates, and the soil buffer capacity is weak. , which significantly restricted the improvement of maize population quality and high-yield potential of dense planting. Straw returning to the field is the fundamental way to improve the soil plow layer environment, realize the improvement of soil fertility, and solve the problem of straw burning. However, how to ensure the quality of seedling emergence, coordinate the structure and function of the plow layer...

Claims

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Application Information

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IPC IPC(8): A01G22/20A01B79/02
CPCA01G22/20A01B79/02
Inventor 李从锋赵明侯帅周宝元任红
Owner INST OF CROP SCI CHINESE ACAD OF AGRI SCI
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