Abstract:

In order to study the efficient planting technology of no-tillage interplanting fresh broad bean after tobacco, using the orthogonal test design of three factors and three levels, the effects of sowing date, density and fertilization on the yield of fresh broad bean after tobacco were studied, and the correlation analysis of main traits and yield were also analyzed. The results showed that the whole growth period, the first flowering, the first podding and the first picking of fresh pods gradually increased with the postponement of sowing date; the yield of fresh pod increased first and then decreased with the postponement of sowing date and increase of density, and increased with the increase of fertilizer application. The fresh pod yield can be increased by increasing plant height, pod number per plant, pod number per pod, fresh weight per 100 pods and fresh weight per 100 seeds, but appropriate control of population biomass is necessary. The three factors affected the yield in the following order: sowing date > density > fertilizer amount. Under the conditions of this experiment, fresh broad beans planted after tobacco were sown on September 10, with a planting density of 90000 plants/hm² and 150 kg/hm² of compound fertilizer (16-16-16) applied at the time of sowing, the highest fresh pod yield could be obtained.

Key words: sowing date, density, fertilizer amount, fresh broad beans, yield