播种密度、N肥用量及NPK比例与亚麻产量的关系  

The Study of Relation among Straw Flax Yield,Density,Amount of Nitrogen and NP K Ratio

作　　者：刘其宁[1] 符明联[1] 吴学英[1] 赵振玲[1] 杜刚[1] 

机构地区：[1]云南省农业科学院经济作物研究所,云南昆明650205

出　　处：《中国麻业》2006年第1期29-32,共4页Plant Fibers and Products

基　　金：云南省科技攻关项目(2002NG06)

摘　　要：本文研究了不同播种密度、不同N肥用量及NPK比例与亚麻产量的关系。结果表明,影响云南省冬季亚麻原茎产量的因素从主到次为:播种密度、施肥量、N∶P∶K;多数产区播种密度应达到220万粒/666.7m 2,;少数出苗率和成苗率较高的产区可适当降低播种密度;土壤水解氮140mg/kg左右、有效磷10mg/kg左右、有效钾100mg/kg左右的田块,尿素施用量应控制在15kg/666.7m 2左右,N、P、K的施肥比例应采用2∶1∶1或1∶1∶2。The relation among straw flax yield, density, amount of nitrogen, NPK ratio was studied. The factor which influences the yield of flax most in winter in Yuannan is density, then the amount of fertilizer, and NPK ratio. It is recommended that seed above 2.2 million should be sowed for per mu （667.7m2 ）, and the sowed amount might be decreased properly where the rate of seedling emergence is relative high. Approximate 15 kg urea is recommended for per mu（667.7m^2 ）, the NPK ratio recommended is 2： 1：1 or 1： 1： 2.

关 键 词：亚麻 播种密度 N肥用量 NPK比例 

分 类 号：S563.2[农业科学—作物学]