Soil improvement method under crop rotation system of wheat-corn in tide soil region of North China
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A soil improvement and wheat technology, which is applied in the field of soil cultivation, can solve the problems of reduced soil water and fertilizer storage capacity, shallow soil plow layer, etc., and achieve the effects of high crop yield, soil fertilization, and increased corn yield
Inactive Publication Date: 2019-02-19
HENAN AGRICULTURAL UNIVERSITY
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a soil improvement method under the wheat-corn rotation system in the fluvo-aquic soil area of North China, which is suitable for the Huang-Huai-Hai flu-flux soil area in Henan Province, in order not to change the overall planting system and the premise of not affecting grain production To solve the problems of shallow soil plow layer, compact structure, and reduced soil water and fertilizer storage capacity caused by long-term no-tillage and rotary tillage
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Embodiment 1
[0036] Example 1: Soil improvement test under the wheat-corn rotation system in the fluvo-aquic soil area of North China (corn season)
[0037] 1. Test material
[0038] The wheat variety is Zhoumai 18 or Zhengmai 369, and the corn variety is Jundan 29.
[0039] 2. Test time and place
[0040] From October 2016 to October 2017, experimental research was carried out in Yuanyang County, Henan Province, Minquan County, Henan Province and other Huanghuaihai regions.
[0041] 3. Experimental Treatment
[0042] Under the wheat-corn rotation system, all crop stalks were returned to the field, the wheat season was sown according to the normal rotary tillage, and the straw was returned to the field after wheat harvest, and three tillage treatments were set in the corn season. After the corn is harvested, all corn stalks are crushed and returned to the field.
[0043] The 3 tillage treatments are as follows:
[0044] Control group CK (farmer's habit): no-till sowing of corn after...
Embodiment 2
[0103] Example 2: The impact test of the soil improvement method under the wheat-corn rotation system in the fluvo-aquic soil area of North China on the next wheat season
[0104] 1. The test materials, test time and place, and test treatment are the same as in Example 1.
[0105] 2. Detection indicators
[0106] In October 2017, after the corn was harvested, all the straw was crushed and returned to the field, and 900-1200 / 666.7m of fly ash was applied 2 , and then carry out the same high-yielding wheat cultivation techniques such as tillage (rotary tillage), sowing, fertilization, etc. according to the procedures of wheat season planting in October 2016. Under normal management during the growth period, soil samples at different layers (0-10 cm, 10-20 cm, 20-30 cm, 30-40 cm, 40-50 cm) were sampled during the wheat maturity stage (June 2018), The content of available nutrients in different layers of soil was measured; at the same time, samples of wheat plants were sampled...
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Abstract
The invention discloses a soil improvement method under a crop rotation system of wheat-corn in a tide soil region of North China. The method aims at solving the technical problems of shallow soil tillage layer and low soil water and fertilizer conservation capacity. The method comprises the following steps: in a wheat planting season, corn stalks of the last season are crushed and the whole amount of straws is returned to the field combined with soil rotating tillage. The depth of the rotating tillage is controlled to 15-18 centimeters, and basal fertilizer especially for the wheat is appliedwhile the wheat is sowed. Urea is applied to wheat during green-back period, and watering is carried out in time after the application. In a corn planting season, the wheat stalks of the last seasonare crushed and returned to the field in full amount in combination with the deep loosening of soil spacing. The distances between deep loosening ditches are determined according to the distances between the sowing rows of the corn. Fertilizer especially for the corn is applied while the corn is sowed. The corn is sowed between two adjacent deep lessening ditches or tillage-free areas in the ditches. The method can improve the structure of soil arable layers, promote the expansion of the arable layers, improve the production performance of the soil, ensure the uniform distribution of nutrientsbetween arable layers, promote the growth of crops, and improve the unit yield.
Description
technical field [0001] The invention relates to the technical field of soil cultivation, in particular to a soil improvement method under the wheat-corn rotation system in the fluvo-aquic soil area of North China. Background technique [0002] The North China Plain is a plain formed by the long-term deposition of the alluvial deposits of the Yellow River, Huaihe River and Haihe River, so it is also called the Huanghuaihai Plain. Its soil type is mainly fluvo-aquic soil developed from loess alluvial deposits. In the process of soil formation, it is deeply affected by parent material, groundwater, and cultivation and maturation. Most of the fluvo-aquic soils contain calcium carbonate, have a lime-like reaction, high base saturation, low organic matter content, and great potential for soil improvement. [0003] The Huang-Huai-Hai Plain is an important grain production base in my country. Its vast plains, distinct seasons, and sufficient sunlight are very conducive to the gro...
Claims
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Application Information
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