【摘要】 通过盆栽试验研究了不同土壤速效钾水平对青菜生长的影响。结果表明,在试验条件下,每施用1个单位的肥料钾,可以使土壤速效钾含量提高0. 3个单位。随着土壤速效钾含量的提高,蔬菜增产效果明显,其增产幅度为5. 0% ~48. 5%,同时降低了蔬菜硝酸盐含量,促进植株养分的吸收,达到蔬菜增产、优质的目的。更多还原

【Abstract】 The experiment was carried out to study the influence of soil available K level on cabbage yield by potted experiment. The results showed: Under experiment condition, one unit fertilizer K used was able to improve 0.3 units soil available K. With the increase of soil available k level, cabbage growth improved obviously from 5.0 percent to 48.5 percent, and cabbage Nitration contents was depressed, so plants nutrient absorption accelerated. The purposes of improvement of vegetable yield and quality were achieved.更多还原