不同种植方式对土壤水分含量和夏玉米产量的影响

Effects of different planting patterns on soil moisture and summer maize yield

试验设置垄种、沟播、宽窄行平作和等行距平作等4个处理,探讨不同种植方式对土壤含水量动态变化和夏玉米产量等影响.结果表明,沟播、垄种处理的土壤含水量高于等行距平作和宽窄行平作.垄种、沟播处理的作物水分利用效率比等行距平作分别提高了6%和8%,光合速率比等行距种植分别提高了2%和3%,产量比等行距平作分别增加了11.0%和11.1%,而宽窄行平作处理的水分利用率、光合速率、产量分别比等行距平作降低了9%,5%和7%.相比之下,沟播种植方式具有较为明显的优势.

Four planting patterns of bed, furrow, wide-narrow row and uniform row were designed to investigate the effects of different plantiog patterns on soil water content and summer maize production. The results showed that the soil water contents of bed, furrow were higher than these of uniform row treatment and wide-narrow row treatment, respectively; the water use efficiency （WUE） of bed and farrow treatment was 6% , 8% , 2% , 3% higher than that of uniform row treatment respectively; the grain yield of bed and furrow treatment increased by 11.0% , IIi 1% than that of uniform row treat-ment respectireely; while the water use efficiency （WUE） , photosynthetic rate and yield of wide-narrow treatment was 9% , 5% and 7% lower than that of uniform row treatment, respectively. Therefore, furrow planting pattern has more advantages over others in the region.