Abstract:

The cultivar, which was named ‘Shanghai Jiaoda Red Lentil No.1’, was carried out to investigate the yield of Lablab purpurues under different planting densities. A appropriate planting pattern for increasing the Lablab purpurues production was found through evaluating and analyzing their yield under four different planting densities in 2 picking stages, which also provided a theoretical basis for its high density cultivation. The results indicated that the yield was increased with the planting density under 49995 plants/hm2, and began to decrease over this point. In the experiment, the best planting pattern was as follows: row distance and its plant distance was 2 m and 0.2 m respectively, and planting density was 49995 plants/hm2, which could increase 124.3% production compared with traditional cultivation pattern. The yield increase rate reached 80.48%-272.96% under high density cultivation at the first stage (April 15th to June 30th), and it was 0-9.8% at the second stage (July 1st to October 15th), which demonstrated that the effect on the first stage was greater than that of the second stage. The yield can be greatly improved through reasonable high density cultivation in the production of lentil.