Effects of Density on the Dry Matter Accumulation,Distribution and Planting Profit of Angelica pubescens
[Objective] The dry matter accumulation and distribution of Angelica pubescens were studied,to provide theoretical basis for ration-al close planting and scientific fertilization.[Method]The dry matter of aerial part (stems and leaves) and root were measured in different growth periods,then create fit curve to predict and analyze.[Result] The dry matter accumulation could be fitted curve well with the increase of the number of days after transplant.Under different planting density,the dry matter accumulation variation trends were similar.With the in-crease of density,the individual average accumulation got smaller and smaller,the area yield was more and more big,and the profit increased first and then decreased.[Conclusion]On the cultivation of Angelica pubescens,the density should be used 75933 plants/hm2.The fertilization should be divided into parts and applied in small quantities and several times,and a proper increase in nitrogen fertilizer,to help you get a higher yield.
万方数据
维普
