钾肥对6个彩色马铃薯品种(系)产量及钾素吸收利用的影响研究

Effects of Potassium Fertilizer on Yield and Potassium Absorption and Utilization of Six Color Potato varieties(Lines)

本试验以红美、红玉、PM05、CH38、Min20、A160这6个彩色马铃薯品种(系)为研究材料,设置4个梯度的钾肥用量处理,分别为不施钾肥(CK),施钾肥100 kg/hm^(2)(T_(1)),施钾肥200 kg/hm^(2)(T_(2)),施钾肥300 kg/hm^(2)(T_(3)),每次处理4次重复,通过对不同施钾量处理下各品种的块茎产量、商品薯率、干物质积累量、钾含量测定、钾肥利用效率等指标的测定分析,明确了各彩色马铃薯品种(系)的最佳钾肥用量,为彩色马铃薯品种在呼伦贝尔岭西地区栽培推广奠定基础。

In this experiment,six colored potato varieties,Hongmei,Hongyu,PM05,CH38,Min20 and A160,were used as research materials,and four gradient potassium fertilizer treatments were set up,namely,no potash fertilizer(CK),100kg/hm^(2)(T_(1)),200kg/hm^(2)(T_(2)),300kg/hm^(2)(T_(3)),and each treatment was repeated 4 times.Through the determination and analysis of tuber yield,commercial potato rate,dry matter accumulation,potassium content determination,potassium fertilizer utilization efficiency and other indexes of each variety under different potassium application rates,the optimum amount of potassium fertilizer for each color potato variety was determined,which laid the foundation for the cultivation and popularization of color potato varieties in Hulunbuir.