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Cultivation method capable of enhancing corn yield

A cultivation method and corn technology, applied in the fields of botanical equipment and methods, horticulture, application, etc., can solve the problems of not maximizing the utilization of solar energy, not fully exerting photosynthesis, affecting the accumulation of dry matter, etc., and increasing the number of plants. , Increase ventilation, reduce the effect of pests and diseases

Inactive Publication Date: 2014-03-05
JILIN PROVINCE SCI & TECH EVALUATION
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

In this cultivation method, after the corn grows to 6 to 9 leaves, the shadows of the corn will cover each other, and the light cannot be irradiated to each leaf of the corn, and the photosynthesis of each leaf cannot be fully utilized, and the light energy of the sun cannot be used to the maximum extent. , thus seriously affecting the accumulation of dry matter, thereby affecting the yield. At present, the yield of corn per hectare is only seven or eight thousand catties

Method used

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  • Cultivation method capable of enhancing corn yield

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Experimental program
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Effect test

Embodiment 1

[0020] The planting test base is in Jiutai City, Jilin Province. After the autumn harvest, the ground is raked with machinery for sowing in the spring of the following year. Before planting, use a compass to orientate, and calculate the ridge direction as 20° west of magnetic south according to the longitude and latitude of Jiutai City (East longitude 125°51′, North latitude 44°09′). The distance between the ridges is set to 160 cm for the large ridge and 40 cm for the small ridge to form a combined ridge of 2 meters and 2 rows.

[0021] Specific sowing method:

[0022] When sowing in the first year, sow according to the row width of 40 cm for cultivation (small ridge width), and 160 cm for leisure row width (super large row spacing).

[0023] When planting in the second year, sow at an interval of about 30 centimeters on the east side of the first year's cultivation row, and still plant by 35 centimeters of cultivation row width and 165 centimeters of leisure row width.

[...

Embodiment 2

[0030] (1) Choose a flat plot with deep plowing layer, high fertility, fertilizer and water retention, and good drainage.

[0031] (2) After the autumn harvest, plow the ground in autumn. The depth of plowing is 25cm. Break the bottom layer of the plow.

[0032] (3) Select high-quality, high-yield and dense-resistant varieties: choose Xianyu 335, a high-quality, high-yield and dense-resistant variety with a growth period of 127 days and an accumulated temperature of 2750 °C.

[0033] (4) According to the longitude and latitude of the planting site, the ridge direction is calculated as 18° west by magnetic south, and the light time is increased to improve the utilization rate of light energy. East-west ridges must not be planted.

[0034] (5) According to the solar elevation angle and azimuth angle and the corn plant height, calculate the ridge spacing of the combined ridge, change the traditional uniform small ridge of 55-60cm into a combination of large and small ridges, and...

Embodiment 3

[0038] (1) Choose a flat plot with deep plowing layer, high fertility, fertilizer and water retention, and good drainage.

[0039] (2) After the autumn harvest, plow the ground in autumn. The depth of plowing is 25cm. Break the bottom layer of the plow.

[0040] (3) Select high-quality, high-yield and dense-resistant varieties: choose Liangyu 11, a high-quality, high-yield and dense-resistant variety with a growth period of 128 days and an accumulated temperature of 2750°C.

[0041] (4) According to the longitude and latitude of the planting site, the ridge direction is calculated as 18° west by magnetic south, and the light time is increased to improve the utilization rate of light energy. East-west ridges must not be planted.

[0042] (5) According to the solar elevation angle and azimuth angle and the corn plant height, calculate the ridge spacing of the combined ridge, change the traditional uniform small ridge of 55-60cm into a combination of large and small ridges, and ...

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Abstract

The invention discloses a cultivation method capable of enhancing a corn yield. Big ridges and small ridges are adopted to form mixed and combined ridges, the big ridges are 150-170cm wide, the small ridges are 25-45cm wide, and the directions of the ridges are 18-20 degrees to the west of magnetic south. According to the method, one large ridge is spaced when every two small ridges are used for cultivation, so that the rate of ventilation is increased, and the number of plants is increased by 10%; light illumination is good, water temperature is high, and accumulated temperature is high; pest and disease damage can be reduced, and lodging is resistant; in the second year and the third year, the small ridges for the cultivation are sequentially arranged in the big ridges spaced in the first year, and the ridge positions in the fourth year repeat those in the first year. Land nutrients are fully utilized, and therefore the purpose of the high corn yield is achieved. The average growing rate of the annual per-unit yield of corns can reach 15%-17%, and the corn yield per hectare can be increased by 2500 kilograms.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation in the field of agricultural technology, and in particular relates to a cultivation method for increasing corn yield. Background technique [0002] Corn is a high light efficiency crop, and the yield of crops mainly depends on photosynthesis, and photosynthesis is related to light, temperature, water, CO 2 Concentration, soil environment and crop orientation are closely related. At present, in the Northeast region, the traditional corn cultivation method has a row spacing of 55-60 cm and a plant spacing of 31-35 cm. About 3,500 corn plants are planted per mu, and the ridge direction is highly random and there is no definite direction. In this cultivation method, after the corn grows to 6 to 9 leaves, the shadows of the corn will cover each other, and the light cannot be irradiated to each leaf of the corn, and the photosynthesis of each leaf cannot be fully utilized, and the light energy...

Claims

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Application Information

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IPC IPC(8): A01G1/00
Inventor 张强陈小姝张建波齐丽娜
Owner JILIN PROVINCE SCI & TECH EVALUATION
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