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在3年肥力定位试验地上进行不同土壤肥力对芝麻生长发育及产量和效益的影响研究。结果表明,芝麻株高、叶面积、叶片数、干物质质量均随土壤肥力的提高而增加,处理间差异均达极显著水平。土壤肥力越高芝麻籽粒产量和效益越高。处理1-4产量分别比处理5减产48.86%、55.52%、42.88%和28.18%,经济效益分别比处理5降低了49.87%、50.48%、36.40%、20.04%。在土壤基础地力较低的条件下,作物产量在本地同土壤类型居中高水平,为作物减量施肥、节资增效提供依据。
Effects of different soil fertility on the growth, yield, and benefit of sesame were studied on the site of three years fertility experiment. The results showed that the plant height, leaf area, number of leaves and dry matter quality of sesame increased with the increase of soil fertility, and the differences among the treatments reached extremely significant levels. The higher the soil fertility, the higher the yield and benefit of sesame seeds. The yields of treatments 1-4 were 48.86%, 55.52%, 42.88% and 28.18% lower than those of treatments 5, respectively. The economic benefits were 49.87%, 50.48%, 36.40% and 20.04% lower than those of treatments 5 and 5, respectively. Under the conditions of low soil basic fertility, the crop yield is at a high level in the local and soil types, which provides the basis for crop reduction and fertilization and the increase of capital and efficiency.