全生物降解地膜覆盖对旱地土壤水分状况及春小麦产量和水分利用效率的影响

马明生, 郭贤仕, 柳燕兰

Effects of full biodegradable film on soil water status and yield and water use efficiency of spring wheat in dryland

Ming-Sheng MA, Xian-Shi GUO, Yan-Lan LIU

表1 不同覆盖方式对小麦出苗情况及有效穗数的影响

Table 1 Effects of different mulching methods on the emergence and the productive spike of wheat

年份 Year 处理 Treatment 播种量 Sowing amount (kg hm-2) 出苗株数 Number of wheat seedlings (×10-5 hm-2) 成熟期有效穗数 Productive ear at maturity stage (×10-5 hm-2) 成穗率 Percentage of productive spike (%) 2015 PM 195.0 41.67±2.15 a 29.87±1.33 a 71.68 BM 195.0 41.53±2.94 a 29.53±2.02 a 71.11 CK 195.0 38.97±1.68 a 27.53±0.82 a 70.64 2016 PM 195.0 39.23±1.91 a 26.20±1.13 a 66.79 BM 195.0 38.77±2.08 a 25.87±1.23 a 66.73 CK 195.0 33.73±1.54 b 21.53±0.92 b 63.83 2017 PM 195.0 40.50±2.05 a 26.23±1.21 a 64.77 BM 195.0 40.67±2.05 a 26.40±1.42 a 64.91 CK 195.0 34.83±2.13 b 21.60±1.36 b 62.03 2018 PM 195.0 41.23±1.84 a 30.17±1.51 a 73.17 BM 195.0 41.17±1.07 a 30.10±0.86 a 73.11 CK 195.0 38.43±0.57 a 27.33±0.82 b 71.12