养殖废弃物生物有机肥料对藜蒿产量及肥料利用率的影响

Effects of Bio-organic Fertilizer on Yield and Fertilizer Utilization Efficiency of Artemisia selengensis

研究了养殖废弃物生物有机肥料和化肥配施与单施化肥对云南藜蒿产量、相对干物质含量、土壤养分含量及肥料利用率的影响。试验结果表明,各施肥处理的藜蒿产量(21 273~29 110 kg/hm^2)均显著高于对照(17 765 kg/hm^2),其中有机无机肥配施处理的藜蒿产量(20 334~29 110 kg/hm^2)比单施化肥处理(21 273 kg/hm^2)增加19.8%~36.8%;同时,有机无机肥配施处理的藜蒿相对干物质含量比单施化肥处理提高了1.14%~5.48%;与单施化肥处理相比,有机无机肥配施处理明显提高了土壤养分含量、改善了土壤供肥特性、提高了肥料利用率;藜蒿地上部的养分积累量、肥料回收率和肥料农学利用效率及生理利用效率均显著提高。

The field experiment was carried to study the effects of organic-inorganic mixed fertilizer and single chemical fertilizer on yield, comparative dry matter amount, soil nutrient content and fertilizer utilization efficiency of Yunnan Artemisia selengensis. The results showed that, the yields of fertilizer application treatments （21 273-29 110 kg/hmz） were significantly higher than the control treatment （17 765 kg/hm2, no fertilizer treatment）, and the yields of the organicinorganic mixed fertilizers treatments （20 334-29 110 kg/hm2） were increased by 19.8%-36.8% compared with that of chemical fertilizer treatment （21 273 kg/hm2）. Compared with chemical fertilizer treatment, the amounts of comparative dry matter of organic-inorganic mixed fertilizer treatments were increased by 1.14%-5.48%. Compared with chemical fertilizer treatment, the treatments of organic-inorganic mixed fertilizers were significantly higher in soil nutrient content, soil fertilizer-supplying characteristic and fertilizer utilization rate. Nutrient accumulation of overground part of A. selengensis, fertilizer recovery rate, agronomic utilization efficiency and physiological utilization efficiency had also been significantly improved.