云南亚麻高产栽培数学模型研究

Research on the Mathematic Model for High Yield of Flax in Yunnan Province

本试验研究了亚麻品种阿里安在秋播条件下的密度、氮、磷、钾肥施用量及氮肥施用时期五个主要可控栽培因子与原茎产量之间的效应关系及其数学模型。获取相应的农艺措施;优选出最佳农艺措施:密度2008株/666.7m2、尿素24.05kg/666.7m2、普钙39.3kg/666.7m2、硫酸钾2.7kg/666.7m2、尿素施用适期是底肥5%、枞形前期25%、枞形末期70%。

Flax Ariane was sown in the autumn. The relation between the stem yield and 5 main factors(planting density,the applying amount of N,P,K and the applying date of N)was studied. A mathematic model was constructed. The optimized model was density 2008 seedling/m2,urea 24.05kg/666.7m2,Ca(H2PO4)2 39.3kg/666.7m2,K2SO4 2.7kg/666.7m2. The applying dates of urea were 5% as basic fertilizer,25% when seedlings were 8-10cm high,70% when seedlings were 15-25cm high.