摘要
对钾影响亚麻纤维产质量的作用机理做了初步探讨，研究显示钾能够影响亚麻的光合作用，对光和势、叶面积指数、净光合速率在不同生育时期都有不同的影响，以快速生长期到现蕾开花期影响最大；钾能够提高与亚麻产质量相关的酶活性；影响亚麻的干物质积累，改善亚麻的纤维产质量构成因素；增加植株高度、工艺长度和单株重，尤其对出麻率的影响达到极显著水平。因此，生产中应重视钾肥的施用，但要避免过量，从实验结果来看，在中等肥力水平的土壤上，以施钾２２５ｋｇ·ｈｍ－２较适宜。
This paper probes primarily the mechanism which Potassium influences the yield and quality of fibre flax.The study indicates that Potassium influnces the photosynthesis of fibre flax.It influnces differently on LAD、LAI and NAR in the different growth and development period.But this effect displays mainly during the rapid growth period and squaring stage.Potassium might increase the enzymatic activity relating to yield and quality of fibre falx.Potassium might affect the accumulation of the dry matter.Potassium could improve the component factor of the yeild and quality,increasing palnt height、technological height and single plant weight.Fibre percentage gets especially intensive significant difference .So we should accent Potassium application,but avoiding over application.As the result of the experiments,which it is fuit for applying 22 5 kg\5hm -2 in the medium fertilitied soil.
出处
《东北农业大学学报》
CAS
CSCD
1998年第1期21-26,共6页
Journal of Northeast Agricultural University
