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Cultivation method with high photosynthetic efficiency for crops having concave and convex canopies

A cultivation method and crop technology, applied in the field of crop concave-convex canopy high light-efficiency cultivation, can solve problems such as small overall effect of sideline advantages, and achieve the effects of tapping yield potential, increasing the number of ears per mu, and ensuring yield

Inactive Publication Date: 2016-01-13
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is a phenomenon of "edge row advantage" in crop production, but due to the homogeneous cultivation group, there are few side rows, and only the perimeter of the field exists, so the overall effect of the edge row advantage is very small

Method used

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  • Cultivation method with high photosynthetic efficiency for crops having concave and convex canopies
  • Cultivation method with high photosynthetic efficiency for crops having concave and convex canopies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 As shown, the high light efficiency cultivation method of wheat concave-convex canopy:

[0018] Select two wheat varieties with the same growth period, larger ear type, and different plant heights, one of which is a tall stalk variety and the other is a short stalk variety, and the plant height difference (△H) of the two wheat varieties is 10-15cm. should.

[0019] Method 1: Use 12 rows of seeders to sow, the seeding boxes are separated by 3 rows, 3 rows for each variety, and the two varieties are arranged alternately, sow according to the normal row spacing (r=R) of 15-20cm and equal row spacing, that is, 3 rows of high poles Variety wheat and three rows of dwarf variety wheat are planted alternately, and the row spacing between adjacent wheat of the same variety and adjacent wheat of different varieties is equal.

[0020] Method 2: "Three dense and one thin" belt-shaped sowing, that is, three rows of the same variety of wheat are planted in a belt, ...

Embodiment 2

[0024] Such as figure 2 As shown, the high light efficiency cultivation method of corn concave-convex canopy:

[0025] Corn forms a concave-convex canopy through chemical control of separated strips. The specific method is: plant in wide and narrow row strips, each strip includes 2 rows of corn, the row spacing (d) of corn in the strip is 40cm, and the row spacing (D) of adjacent corn between strips is 80cm, that is, 80cm+40cm wide and narrow row planting; increase the density to make the number of plants per mu reach about 6000. Appropriate early sowing, single-grain uniform sowing or double-grain hole sowing, water well for emergence. During the growth period, the chemical control treatment is carried out in different zones, that is, spraying chemical control regulators in one area to make them dwarf, and not spraying chemical control agents in one area to make them grow normally, forming high and low bands arranged alternately. In the chemical control treatment zone, dwa...

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Abstract

The invention relates to a cultivation method with high photosynthetic efficiency for crops having concave and convex canopies. Regular crop groups having concave and convex canopies are formed by taking methods of performing strip intercropping operation on tall and dwarf varieties of crops and carrying out stripped directional control and adjustment. The numbers of rows and lines are artificially increased and stereo light acceptance is enhanced. Meanwhile, density of plants is increased and row intervals of plant are thus correspondingly adjusted. The crop groups having concave and convex canopies comprise concave canopies and convex canopies. The concave canopies are crop canopies at the plant height lower than normal value or at the normal value. The convex canopies are crop canopies at the normal plant height or at the plant height above the normal value. The cultivation method with high photosynthetic efficiency for crops having concave and convex canopies has following beneficial effects: by adoption of methods such as strip cropping of varieties, stripped directional adjustment, light-accepting areas of crop plants are increased and photosynthesis of canopies is improved so that the ultimate yield of crops is further increased.

Description

technical field [0001] The invention relates to a method for cultivating crops, in particular to a method for cultivating crops with a concave-convex canopy with high light efficiency. Background technique [0002] The current crops (such as wheat, corn, etc.) are mostly cultivated with a single variety and uniform management. The plant heights of the formed groups are basically the same. The canopy is a horizontal uniform canopy, and each layer of leaves is distributed on the same horizontal plane. The competition among the structural plants is fierce, and the upper layer receives better light, but the lower layer leaves receive poor light due to the shading of the upper layer leaves, resulting in less photosynthetic production, more respiratory consumption, and premature death of the lower layer leaves, which affects the material production of the group. With the increase of yield level, the colony continues to expand. How to improve the canopy structure in a large colony,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
CPCA01G22/00
Inventor 王志敏王彬张英华周顺利王云奇韩美坤
Owner CHINA AGRI UNIV