黑色全膜覆盖对高粱根区土壤温湿度的影响及杂草抑制效应

张建华,郭瑞峰,曹昌林,白文斌

Effects of Black Full Film Mulching on Soil Temperature and Humidity and Weed Control in Root Zone of Sorghum

JianHua ZHANG,RuiFeng GUO,ChangLin CAO,WenBin BAI

表3 不同全膜覆盖对高粱产量的影响

Table 3 Effects of different full film mulching on sorghum yield

年份 Year 处理 Treatment 穗长 Ear length (cm) 一级枝梗数Number of first-stage branches 穗粒数 Grain number per ear (grains/ear) 千粒重 1000 grain mass (g) 产量 Yield (kg·hm-2) 总产值 Gross output (yuan/hm2) 比较经济效益 Comparative economic benefits (yuan/hm2) 2017 黑色宽膜 Black full film 34.50a 72.08a 158.69a 29.23c 12150.47c 23400.94c _ 白色宽膜 White full film 33.72a 71.56a 155.25a 28.18b 11385.56b 21871.12b -1529.82a CK 32.60a 70.30a 125.02a 27.33a 10187.78a 20375.56a -3025.38b 2018 黑色宽膜 Black full film 34.62a 73.56a 167.58a 29.86c 12330.21c 23760.42c _ 白色宽膜 White full film 33.89a 72.25a 156.89a 28.77b 11530.33b 22160.66b -1599.76a CK 32.75a 71.44a 127.56a 27.89a 10272.45a 20544.9a -3215.52b