Abstract:

A field experiment was conducted to study the effects of different planting density and fertilizer rates on dry matter accumulation, chlorophyll and yield of ‘Xiangzayou763’. The results showed that Fertilizer factor was more important than planting density in chlorophyll, dry matter accumulation and yield. The highest yield was 2696.2 kg/hm2 which fertilizer of N, P2O5, K2O, B were 180, 90, 157.5, 0.9 kg/hm2 and planting density was 7.5×104 plants/hm2. Chlorophyll-a, Chlorophyll-b, total chlorophyll and dry matter accumulation increased with the increase of fertilizer application under the same plant density at both wintering and flowering stage. The dry matter accumulation decreased with the increase of planting density at wintering and flowering stage under the same fertilizer application, while showed less effect on chlorophyll. Therefore, the treatment which fertilizer of N, P2O5, K2O, B were 180, 90, 157.5, 0.9 kg/hm2 and the planting density was 75×104 plants/hm2 was the best.