摘要
以普那菊苣为试验研究对象,通过对普那菊苣鲜草产量与种植密度、氮肥施用量、磷肥施用量、钾肥施用量间相关关系进行分析,建立了普那菊苣鲜草产量与各因子间的数学模型.结果:普那菊苣鲜草产量≥13 500.00 kg/hm2的农艺措施为种植密度186 120～194 040株/hm2,纯N 31.68～34.96 kg/hm2,P2O5112.05～127.95 kg/hm2,K2O 85.61～96.19 kg/hm2;鲜草产量≥142 500.00 kg/hm2的农艺措施为种植密度191 500～201 180株/hm2,纯N 33.68～37.89 kg/hm2,P2O5110.55～129.45 kg/hm2,K2O 78.41～93.75 kg/hm2;各因子对鲜草产量的影响程度为种植密度>钾肥施用量>氮肥施用量>磷肥施用量;不同因子互作表现:种植密度氮肥互作>种植密度磷肥互作>氮磷肥互作>氮钾肥互作>种植密度钾肥互作>磷钾肥互作.
The mathematical models of high-yield cultivation for fresh glass of Puna chicory were established by analyzing correlations between fresh yield and planting density,nitrogen,phosphorus,potassium application amount.The results showed that the cultivation measures for the fresh yield over 13500.00kg/hm2 were 186120～194040 plants/hm2,31.68～34.96 kg/hm2 of pure N,112.05～127.95 kg/hm2 of P2O5 and 85.61～96.19 kg/hm2of K2O,and the cultivation measures for the fresh yield over 142500.00 kg/hm2 were 191500～201180 plants/hm2,33.68～37.89kg/hm2 of pure N,110.55～129.45kg/hm2 of P2O5 and 78.41～93.75kg/hm2of K2O.The degree of affecting the fresh yield was planting density>potassium application amount>hitrogen application amount>phosphorus application amount and the interaction between different factors was planting density and nitrogen>planting density and phosphorus>nitrogen and phorsphorus>nitrogen and potassium>planting density and potassium> phosphorus and potassium.
出处
《贵州农业科学》
CAS
北大核心
2009年第9期163-166,共4页
Guizhou Agricultural Sciences
基金
贵州省农业科技攻关计划项目"喀斯特山区草畜高效生产配套技术研究"[黔科合计NY字(2007)3009]
贵州省毕节地区科技计划项目"草畜配套无害化生产技术示范"[毕科合计字(2005)13]
关键词
普那菊苣
数学模型
高产栽培
Puna chicory
mathematical model
high-yield cultivation
