陇中半干旱区不同覆盖种植方式对土壤水热效应和玉米产量的影响

邓浩亮,张恒嘉,肖让,张永玲,田建良,李福强,王玉才,周宏,李煊

Effects of Different Covering Planting Patterns on Soil Moisture, Temperature Characteristics and Maize Yield in Semi-Arid Region of the Loess Plateau

HaoLiang DENG,HengJia ZHANG,Rang XIAO,YongLing ZHANG,JianLiang TIAN,FuQiang LI,YuCai WANG,Hong ZHOU,Xuan LI

表4 旱地不同覆盖种植方式对春玉米物候期的影响

Table 4 Effect of different covering planting patterns on growth stage of spring maize (d)

年份 Year 处理 Treatment 物候期 phenology (d) 播种—出苗 PS-ES 出苗—拔节 ES-JS 拔节—吐丝 JS-SS 吐丝—灌浆 SS-GS 灌浆—成熟 GS-MS 播种—成熟 PS-MS 2015 WM 10c 30b 38b 16c 54b 148b HM 12c 30b 39b 17c 54b 152b MRM 10c 28b 33b 16c 59a 146b WRF 10c 29b 33b 16c 59a 147b SM 20a 40a 45a 22a 39d 166a CK 16b 35b 42ab 20b 45c 158ab 平均 Mean 13.00 32.00 38.33 17.83 51.67 152.83 2016 WM 11b 28c 36c 15c 58b 148b HM 14b 26c 42bc 18b 55bc 155ab MRM 11b 26c 33d 17bc 65a 152ab WRF 11b 27c 34cd 17bc 63ab 152ab SM 19a 42a 50a 24a 28d 163a CK 15b 33b 43b 23ab 45c 159ab 平均 Mean 13.50 30.33 39.67 19.00 52.33 154.83 2年平均 Average numerical values of 2 years WM 10.5c 29.0c 37.0c 15.5c 56.0b 148.0b HM 13.0c 28.0c 40.5bc 17.5b 54.5bc 153.5ab MRM 10.5c 27.0c 33.0d 16.5bc 62.0a 149.0b WRF 10.5c 28.0c 33.5d 16.5bc 61.0ab 149.5b SM 19.5a 41.0a 47.5a 23.0a 33.5d 164.5a CK 15.5b 34.0b 42.5b 21.5ab 45.0c 158.5ab 平均 Mean 13.25 31.17 39.00 18.42 52.00 153.83