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为探寻高产高效的龙须草施肥方案,采用氮、磷、钾肥三因素通用旋转组合设计,通过计算机模拟寻优,建立了湘西耕型红色石灰土龙须草栽培中施肥量与产量、施肥量与利润的数学模型,并优选出龙须草产量和利润最高的各10套施肥方案.龙须草最高产量的施肥量为:尿素253.7kghm2,过磷酸钙170.4kghm2,氯化钾100.5kghm2,N,P2O5,K2O的施用量比例为1∶0.18∶0.52;龙须草最佳经济效益施肥量为:尿素246.2kghm2,过磷酸钙191.4kghm2,氯化钾100.5kghm2,N,P2O5,K2O的施用量比例为1∶0.20∶0.53.
In order to explore the fertilization scheme of Eulaliopsis binata, a three-factor general rotation combination design of nitrogen, phosphorus and potassium fertilizer was applied to optimize the fertility of Eulaliopsis binata And the profit of the mathematical model, and to optimize the yield and profit of the highest grasshopper 10 sets of fertilization programs.The highest yield of Agrimony fertilizers are: urea 253.7kghm2, 170.4kghm2 superphosphate, potassium chloride 100.5kghm2, N , And P2O5 and K2O were 1: 0.18: 0.52. The best economic benefit of Phragmites australis was 246.2 kghm2 urea, 191.4 kghm2 superphosphate, 100.5 kghm2 potassium chloride, N, P2O5 and K2O The ratio is 1: 0.20: 0.53.