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Seedling protecting planting method for maize in saline-alkali soil

A planting method and saline-alkali land technology, applied in botany equipment and methods, plant cultivation, horticulture, etc., can solve the problems of large water consumption and slow water infiltration speed, and achieve good effect, convenient operation and wide application range

Inactive Publication Date: 2016-02-03
山西农业大学玉米研究所
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the problems of large water consumption and slow water infiltration speed affecting on-time planting in the existing planting method for preserving seedlings by watering and pressing salt, the present invention provides a planting method for preserving seedlings of corn in saline-alkali land without watering and pressing salt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] The experiment was conducted in Caojiazhuang Village, Beiyi Township, Xinfu District, Shanxi Province.

[0034] The area of ​​the test field is 20 mu, which is a moderately saline-alkali land with a pH value of 9.2 and a salt content of 0.45% in the root season. Farmers routinely use the method of watering and pressing salt to preserve seedlings, and the average seedling preservation rate over the years is about 60%.

[0035] On October 2, 2013, a corn combine harvester was used to harvest the corn (farmers routinely plant corn) in the experimental field, and the straw was crushed at the same time.

[0036] On October 3, 2013, 1,000 kg of organic fertilizer, 40 kg of compound fertilizer with NPK content of 15-15-15 and 10 kg of urea were applied on the mu.

[0037] On October 4, 2013, an 80-horsepower tractor with a three-plow plow was used for plowing, and the plowing depth was 20 cm. All the straw was turned into the soil, and then 40 kg of saline-alkali land improver...

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Abstract

The invention discloses a seedling protecting planting method for maize in saline-alkali soil. The method comprises the following steps of: after harvesting maize in autumn, smashing straws and uniformly paving the smashed straws on a ground surface; implementing work such as fertilization, tillage, scattering a saline-alkali soil improver, rotary tillage, film spreading, and the like; and planting maize on the film when the ground temperature in spring meets the seeding requirement. According to the method provided by the invention, soil evaporation (avoiding resalinization caused by evaporation) by virtue of the soil improver and film spreading in advance, so that the saline alkali degree of soil is effectively reduced, the soil temperature is improved, the influence of salt and alkali on growth and development in a maize seedling period is avoided, the survival rate of seedlings is improved, and the maize output is remarkably improved. Meanwhile, the method is free of watering and salt washing in spring, so that water resources are saved, and the problem that moisture cannot infiltrate immediately after watering in spring which affects sowing is solved.

Description

technical field [0001] The invention relates to the field of agricultural planting, in particular to a seedling-preserving planting method for corn in saline-alkali land. Background technique [0002] At present, the low rate of seedling preservation, lack of seedlings and broken ridges are common problems of maize in saline-alkali land in my country, and it is also one of the main reasons for the reduction of maize production in saline-alkali land. Improving the seedling preservation rate of maize in saline-alkali land is of great significance for increasing maize yield. At present, farmers mainly use the method of watering and pressing salt to improve the rate of seedling preservation. There are three main problems in this method. First, because most of the saline-alkali land has a high groundwater level, the infiltration rate of water after watering is relatively slow, resulting in excessive soil moisture and unable to meet the schedule. Sowing, the second is that wateri...

Claims

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Application Information

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IPC IPC(8): A01G1/00
CPCA01G22/00
Inventor 张中东郭正宇翟广谦宫帅陈永欣焦建伟武国平
Owner 山西农业大学玉米研究所
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