热带作物学报2017，Vol.38Issue(6)：1005-1009,5.DOI:10.3969/j.issn.1000-2561.2017.06.004
麻渣还田背景下不同钾水平对剑麻生长和叶绿素荧光特性的影响
Effect of Different Levels of Potassium on Growth and Chlorophyll Fluorescence Characteristics of Sisal Under the Background of Straw Returning
摘要
Abstract
The purpose of this study is to find the K chemical fertilizer project under the background of straw residue;In this study,sisal growth index and chlorophyll fluorescence parameters were determined by setting different gradient residue fertilizer chemical potassium fertilizer;The result showed that the application of residue processing (NP+ST) and the application of chemical fertilizer treatment (NP+K) of sisal growth index had no significant difference.Some nutrient elements dregs had significant effects on the chlorophyll content of sisal leaves.The application of fertilizer residue 1/2 potassium fertilizer treatment (NP+ST+1/2K) with tolerance to the biggest and strongest light energy conversion efficiency,significantly increased the biomass of sisal.The application of potassium fertilizer residue could save half of the amount of the recommended dosage.Sisal residue could replace chemical fertilizer to a certain extent,but an appropriate chemical fertilizer is need.Sisal residue and 1/2chemical potassium mixed treatment (NP+ST+1/2K) had the largest light energy conversion efficiency and the best growth effect.It is suggested that enough sisal residue added with 50 g of chemical potassium fertilizer per plant be beneficial to the production of sisal.关键词
剑麻/麻渣/钾肥/叶绿素荧光特性Key words
Sisal/residue/potassium/chlorophyll fluorescence characteristics分类
农业科技引用本文复制引用
杨青青,谭施北,习嘉民,习金根,李乐,汪涵,张静,易克贤..麻渣还田背景下不同钾水平对剑麻生长和叶绿素荧光特性的影响[J].热带作物学报,2017,38(6):1005-1009,5.基金项目
国家麻类产业技术体系建设专项资金资助(No.CARS-19). （No.CARS-19）
