番茄新品种—浙粉202设施栽培条件下的营养特性研究

Nutrient characterization of new tomato variety Zhefen202 in the protected cultivation

研究了番茄新品种浙粉202设施栽培条件下的营养特性.结果表明,番茄浙粉202在产量达到5 200 kg/667m2时,吸收N,P,K,Ca,Mg的量分别约为11.9,3.9,29.0,9.8和2.1㎏,共56.7 kg/667m2,养分吸收比例为1.00:0.33:2.44:0.82:0.18,各养分的需求次序为钾＞氮＞钙＞磷＞镁,磷素需求量虽在钾、氮、钙之后,但对浙粉202生殖生长很重要.80～120 d是其整个生长期中各养分吸收比例最高的时期.

The experiment was conducted to investigate nutrient characterization of new tomato variety Zhefen 202 in the protected cultivation. The results indicated that nutrient absorption of tomato Zhefen 202 in the earlier growing period was lower than that in the middle and later periods. The uptake amount of （ N ＋ K2O ＋ P2O5 ） by tomato Zhefen 202 was 56.7 kg/ 667m^2, and the proportion of N ： P： K： Ca： Mg was 1 ： 0.33： 2.44： 0.82： 0.18. Response of the tomato variety to phosphorus showed sensitive in the reproductive period.