【摘要】 在西峰设置田间黄花菜越冬期地膜覆盖和玉米秸秆覆盖小区试验,观察越冬期土壤水分损耗、早春地温变化特征,并分析不同覆盖材料水、热资源对黄花菜发育期、生长量、产量构成要素的影响。结果发现:在秋季降水充沛、土壤底墒充足、冬季气温偏高、降水明显偏少的年型,越冬地膜覆盖能最大限度保持土壤水库蓄水,增加土壤水分利用率;提高春季地温,促使黄花菜生长发育进程加快,生长势旺盛,并在一定程度上降低春旱造成的危害,对增产增收十分有利。更多还原

【Abstract】 Experiments of plastic film and maize straw coving over winter for lily flower were carried out in Qingyang.Soil water consumes and ground temperature change characters were observed.The effects of different material coving on development period,growth and output of lily flower were analyzed.The results show that the plastic film coving can hold soil water,increase soil water use efficiency,as both the autumn precipitation and soil water are rich,as well as the winter air temperature is high and winter precipitation is little.That coving can increase ground temperature in spring,accelerate growth,and reduce the harm of spring drought,which is very useful for increasing production更多还原