免耕秸秆覆盖对半干旱区土壤团聚体稳定性和玉米产量的影响

马小明, 齐翔鲲, 谭雪, 史孟豫, 王玉凤, 付健, 杨克军

Effects of No-tillage with Straw Mulching on Soil Aggregate Stability and Maize Yield in Semi-Arid Region

Ma Xiaoming, Qi Xiangkun, Tan Xue, Shi Mengyu, Wang Yufeng, Fu Jian, Yang Kejun

表4 不同年限免耕秸秆覆盖还田下玉米产量及其构成因素

Table 4 Maize yield and its components under no-tillage with straw mulching and returning over different years

处理 Treatment 穗长 Ear length (cm) 穗行数 Kernel row number 行粒数 Grains per row 百粒重 100-grain weight (g) 含水量 Moisture content (%) 产量 Yield (kg/hm2) CK 18.35±0.24d 14.00±1.15a 31.00±1.52b 32.57±0.09a 29.80±0.18ab 10 183.45±292.62c T1 19.41±0.34c 14.00±0.67a 36.00±2.00a 33.15±0.14a 30.27±0.29b 10 894.41±393.46bc T2 20.41±0.22b 16.00±1.15a 34.00±1.52ab 33.39±0.04a 27.97±0.76a 11 921.39±536.32ab T3 21.96±0.38a 16.00±1.15a 37.00±2.00a 33.44±0.19a 29.27±0.69ab 12 993.62±328.17a