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采用田间试验,设置了8个不同施肥处理,研究不同施肥处理下光叶紫花苕在四川紫色丘陵区的产量和效益。结果表明,不同施肥处理对光叶紫花苕产量、产量相关性状和养分积累影响差异显著。不施氮肥的处理(60 kg/hm2P2O5和60 kg/hm2K2O)鲜草总产量、第1次刈割和第2次刈割产量均显著高于其它处理,该处理株高、单株体积和单株鲜重增长迅速。适量的化肥配施绿肥专用肥(37.5 kg/hm2纯N,60 kg/hm2P2O5,60 kg/hm2K2O和绿肥专用肥30 kg/hm2)显著提高种子产量和总经济效益,单株一级分枝、单株体积和单株鲜重表现明显优于其它处理。
Field experiments were conducted to set up 8 different fertilization treatments to study the yield and benefits of Plum N. mandshurica in the purple hilly region under different fertilization treatments. The results showed that different fertilization treatments had significant effects on the yield, yield-related traits and nutrient accumulation of Haliotis The yield of fresh grass, the first cutting and the second cutting were significantly higher than those of other treatments without nitrogen fertilizer (60 kg / hm2P2O5 and 60 kg / hm2K2O). The plant height, Fresh weight growth rapidly. Appropriate amount of fertilizers combined with green manure fertilizer (37.5 kg / hm2 pure N, 60 kg / hm2P2O5, 60 kg / hm2K2O and 30 kg / hm2 fertilizer for green manure) significantly increased seed yield and total economic benefits. The volume per plant and fresh weight per plant were significantly better than other treatments.