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本试验以伟科702、先玉335为供试材料,分析深松对不同种植密度玉米的土壤物理特性及产量的影响,结果表明,通过深松处理有效提高了玉米拔节期到成熟期的耕层土壤的田间持水量,且深松处理对高密度种植玉米土壤特性的影响要大于低密度种植玉米。在高密度种植下通过深松处理可以显著增加出籽率,提高穗粒数、千粒重,降低籽粒含水量;显著降低植株倒折率、明显降低果穗秃尖长度,提高玉米产量。
In this study, Weichang 702 and Xian-Yu 335 were used as experimental materials to analyze the effects of subsoiling on soil physical properties and yield of maize with different planting densities. The results showed that subsoiling to ripening maize Layer soil, and the effect of subsoiling on the soil characteristics of high density planting corn was greater than that of low density planting corn. Under high density planting, subsoiling treatment can significantly increase the seed yield, increase grains per spike, 1000-grain weight, decrease grain water content; significantly reduce the rate of plant rebound, significantly reduce the length of ear tip of bald and increase the yield of corn.