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[1]YU Qingfeng,MIAO Qingfeng,SHI Haibin,et al.Effects of Tillage Methods on Soil Water, Heat and Salt of Field Maize in the Period of Spring Sowing[J].Research of Soil and Water Conservation,2019,26(03):265-268.

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Effects of Tillage Methods on Soil Water, Heat and Salt of Field Maize in the Period of Spring Sowing

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 03 Page number: 265-268 Column: Public date: 2019-04-12

Title:: Effects of Tillage Methods on Soil Water, Heat and Salt of Field Maize in the Period of Spring Sowing

Author(s):: YU Qingfeng¹, MIAO Qingfeng², SHI Haibin², HU Min¹, ZHANG Junyou¹; 1. College of Vocation and Technology, Inner Mongolia Agricultural University, Baotou, Inner Mongolia 014109, China;
2. Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China

Keywords:: straw mulching; tillage method; soil water content; soil temperature; soil salt content; emergence rate; maize; Hetao Irrigation Zone

CLC:: S152

DOI:: -

Abstract:: In order to explore the effect of different tillage methods on soil water, heat, salt and the emergence rate of maize with straw mulching after autumn harvest, three treatments including no tillage, less tillage and rotary tillage were set up. The results showed that the different straw mulching patterns caused by different tillage methods and soil moisture contents were the main factors affecting soil temperature, the soil temperature of different soil layers decreased in the order:rotary tillage > less tillage > no tillage, the temperature was lower during period of spring sowing, so relatively high soil temperature was favorable for germination of maize seeds; the soil water contents of different soil layers decreased in the order:no tillage > less tillage > rotary tillage, but all the water conditions were suitable for maize seed germination. In a certain range of soil water content, the soil water and heat showed a negative correlation. The soil salts of different soil layers decreased in the order:rotary tillage > less tillage > no tillage, average contents of soil salt in 0-20 cm layer under no tillage, less tillage and rotary tillage were 1.818 g/kg, 1.845 g/kg and 1.984 g/kg, respectively, which were suitable for planting maize. The effects of different tillage methods on the emergence rates of maize were significant, and the rate of emergence was highest under rotary tillage, which was 9.25% and 6.21% higher than those under no tillage and less tillage, respectively.

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