芝麻高产优质生理基础与规范化栽培技术

芝麻高产栽培的主要生理基础是品种群体植株的极性分布合理、配置方式中的效应值高、“三花’临界期及“断顶优势”利用充分，终生期于物质均衡分配。在技术上，应抓好品种“三优”利用、早播、疏密种植、磷钾辅氮、“三峰期”控制及适期小打顶、适当晚收。采用规范化技术产量可达1125～1500kg／hm2，增产99．8％，一级产品率达到63．2％。

THE PHYSIOLOGICAL BASIS OF SESAME WITH HIGH YIELD AND GOOD QUALITY AND ITS CULTURAL PRACTICES

The main physiological basis of sesame with high yield and good quality was that the ratio of good, normal and poor grades of plants was reasonoble, the edge, similar edge and closeness effects was fully utilized, and the dry matter was balanced distributed to every parts of plant in harvest stage. The corresponding cultural practices were as follow:(1) to selecte the best seeds from recornnsended variety. (2) shift to an earlier sowing time and choose appropriate distance between rows and seeds. (3) apply P.K and N fertilizer and use regulator to control"three-peak stages". (4) break the top of plant and harvest Iate. As the result of these practices, the yield of sesame reached 1125~1500 kg/hm2 it was 99. 8%higher than the usual cultivation, and the rate of the best grade of seed vras 63. 2%.