Efect of the application amount of humic acid compound fertilizer 0n the yield and nutrient utilization rate of pepper
不同腐殖酸复合肥施用量对辣椒产量及其养分利用率的影响

The effects of different application amounts of humic acid compound fertilizer (HA) on yield and nutrient utilization rate of pepper ( Capsicum frutescens L.) were studied. The results show that with the increase of fertilizer application, the N, P and K accumulations by the leaves of pepper are increased. The N, P and K accumulations by the fruits of pepper are described with quadratic parabola model. Fertilizer production efficiency and nutrient utilization rate of N, P and K are all decreased with the fertilizer application increasing. The changeable tendency of yield of pepper with the fertilizer application and the contribution of fertilizer to pepper yield are consisted with that of nutrients accumulation by the fruits of pepper.