早春麦田设覆盖物的增温效应及对冬小麦生育的影响

• 作 者: 洪佳华 马月华
• 机 构: 中国农业科学院农业气象研究室,中国农业科学院农业气象研究室,
• 出 处: 中国农业气象
• 发表日期: 1988年03期
• 关键词: 增温效应 分化期 地膜覆盖 增温效果 穗分化 土壤热传导 试验结果 土壤温度 麦苗返青 穗部性状

早春麦地加覆盖物的试验结果,证明地膜覆盖增温效果最明显,促使小麦提前返青、进入穗分化期和增加小穗数,弥补了北京春季升温快,穗分化期短的不利因素。因此,在一些低产区,由于发育晚、穗分化期短,或者早春干旱影响穗分化的地区,可采用早春盖地膜方法提高产量。

The test results of maize plus mulching in early spring showed that the effect of plastic film mulching was the most obvious, which promoted the early greening of wheat, entering the spike differentiation and increasing the number of spikelets, which made up for the unfavorable factors such as rapid warming in Beijing and short spike differentiation in spring. Therefore, in some low-yielding areas, early spring plastic film mulching can be used to increase yield due to late development, short spike differentiation, or early spring drought affecting panicle differentiation.