Abstract:

By Millet different density and nitrogen on yield traits to recover research on the impact, for millet cultivation techniques to provide a theoretical basis. Using split-plot design, density-based area, located four levels for the sub-region to recover nitrogen, 45 million/hm2, 52.5 million/hm2, 60 million/hm2, 67.5 million/hm2; located 5 level, 0 kg/hm2, 45 kg/hm2, 60 kg/hm2, 135 kg/hm2, 180 kg/hm2, a total of 20 treatments, compare yield differences and chlorophyll, leaf area, soil nitrogen base variation. The results showed that, density of 60 million/hm2, chasing nitrogen in 60 kg/hm2 strategy, access to both a higher yield but also a higher economic efficiency. In order to obtain a higher yield, in the low-density conditions, should be increased to recover nitrogen, increased nutrients, and promote tillering. In the high-density conditions, the nitrogen should be reduced to recover the control tiller, so that the density of millet harvest reached densities at or close to 62 million/hm2-69 million/hm2 optimum density within the range.