Corn near stubble minimal tillage drought resisting planting method

A planting method and corn technology, which are applied in botanical equipment and methods, seed coating/seed dressing, horticulture, etc., to achieve the effects of reducing soil wind erosion, protecting the environment, and improving drought resistance and stable yield.

Inactive Publication Date: 2010-12-15
辽宁省农业科学院耕作栽培研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional farming method makes the surface bare, the soil layer is loose, and the evaporati

Method used

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  • Corn near stubble minimal tillage drought resisting planting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] When the corn was harvested in the autumn of the previous year, the stubble with a height of 30cm was left, and the stubble was not destroyed; before sowing in the spring, the seeds were coated with a seed coating agent and a water-retaining agent or a seed coating agent of 100 mesh or above, and dried for sowing ; In the first year, based on the uniform ridge of traditional farming, use a plow or opener to open a fertilization ditch with a depth of 18-20 cm in the furrow between the two ridges, and apply 380-450 kg / hm of urea 2 , water retaining agent 30kg / hm 2 Then adopt the single-row seeding and fertilizing machine to paste the stubble and plant directly in the ditch, so that the sowing ditch is between the fertilization ditch and the root stubble of the previous year, and simultaneously apply 150 kg / hm of diammonium phosphate and ternary compound fertilizer 2 As a seed fertilizer, acetochlor and other herbicides are sprayed after sowing. After corn seedlings are th...

Embodiment 2

[0017] In the second year, on the opposite side of the root stubble left in the first year, a fertilization ditch with a depth of 18 to 20 cm was opened between the root stubble of the previous year and the stubble of the first year with a plow or opener, and 380 to 380 cm of urea was applied. 450kg / hm 2 , water retaining agent 30kg / hm 2 , and then use a single-row sowing and fertilizer machine to stick stubble and plant directly in the furrow, so that the sowing ditch is between the fertilization ditch and the root stubble of the previous year, and at the same time apply 150 kg / hm of diammonium phosphate and ternary compound fertilizer 2 As seed fertilizer, field management, leave 22cm high stubble when harvesting in autumn, do not kill stubble.

Embodiment 3

[0019] When sowing in the third year, since the root stubble of the previous year and the first year have basically rotted, use a conventional plow or a furrower to open a fertilization ditch 18-20 cm deep along the first year's root stubble, and apply urea 380 ~450kg / hm 2 , water retaining agent 30kg / hm 2 , and then use a single-row seeding and fertilizer applicator to plant directly along the root stubble of the previous year, and at the same time apply 150kg / hm of diammonium phosphate and ternary compound fertilizer 2 As a seed fertilizer, conventional methods are used for field management, and stubbles with a height of 28 cm are left when harvested in autumn, and the stubbles are not eliminated. The applied urea N content is 46.4%; diammonium phosphate N, P 2 o 5 The contents are 17% and 45% respectively; ternary compound fertilizer N, P 2 o 5 、K 2 The O contents were 15%, 15%, and 15%, respectively.

[0020] After three to four years of planting in Example 1-3, it ...

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Abstract

The invention discloses a corn near stubble minimal tillage drought resisting planting method and particularly relates to a corn near stubble minimal tillage drought resisting planting method applicable in northern semiarid areas with sand wind, which is a corn protective tillage method. The corn near stubble minimal tillage drought resisting planting method comprises: keeping 20 to 30 centimeter stubbles when the corn is harvested in the fall in a previous year, wherein the stubbles are not turned; digging an 18 to 20 centimeter deep fertilizing furrow in a ditch between each two ridges by using a furrow plow or an opener, and applying urea and water-retaining agent in the furrows according to ratios of 380 to 450 kg per hm<2> and 30 kg per hm<2> respectively; and sowing corns in the furrows directly and near the stubbles row by row, making the sowing furrows between the fertilizing furrows and the stubbles left in the previous year, applying diammonium phosphate and a ternary compound fertilizer as seed fertilizers at the same time according to a ratio of 150 kg per hm<2>, performing field management, and harvesting corns in fall, wherein 20 to 30 centimeter high stubbles are left and not turned. The planting method of the invention can reduce soil wind erosion, protect environment and improve the drought-resisting and stable-yielding performance of crops.

Description

technical field [0001] The invention relates to a corn planting method, in particular to a corn stubble sticking, less-tillage and drought-resistant planting method suitable for sandy and semi-arid regions in the north, and is a corn protective tillage method. technical background [0002] my country is one of the countries with the most severe wind and sand hazards in the world. According to the third national desertification and sandification monitoring data provided by the State Forestry Administration, the total area of ​​desertified land in the country is 2.6362 million square kilometers, accounting for 27.46% of the total land area. Among them, the area of ​​desertified land is 1.7397 million square kilometers, accounting for 18.12% of the total land area. Desertified land is mainly distributed in the vast arid and semi-arid areas in northern my country. Aeolian desertification, also known as sandy desertification, is the most important type of desertification in my ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C1/06
Inventor 孙占祥冯良山郑家明刘洋杨宁侯志研白伟焦银珠杨光
Owner 辽宁省农业科学院耕作栽培研究所
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