摘要
采用三因素五水平最优回归设计，研究了氮、磷、钾肥配施对番茄产量、品质及病害的影响。结果表明，氮、磷、钾肥配施能提高番茄产量和品质，增加糖、酸及维生素Ｃ的含量。番茄的优化施肥组合为每公顷施纯Ｎ１１２．５～１９３．５ｋｇ，Ｐ２Ｏ５２１．０～７５．０ｋｇ，Ｋ２Ｏ１１２．５～１６８．８ｋｇ，可获得８８８９７．５ｋｇ／ｈｍ２以上产量，比对照增产３２．６％。控氮增钾是提高番茄单果重和增强抗病能力的有效措施之一。
Field experiments, in which the optimized regression design was adopted involving 3 factors each with 5 levels, were conducted to study the effects of combined application of N, P and K on the yield, quality and disease resistance of tomato. The results showed that combined application of NPK fertilizers increased the yield and improved the quality of tomato fruit, enhancing its contents of sugars, acids and vitamin C. The optimum combination for tomato was 112.5～193.5 kg N combined with 21.0～75.0 kg P 2O 5 and 112.5～168.8 kg K 2O per hectare. This treatment gave a yield of 88897.5 kg/hm 2 or more, outyielding the control by 32.6%. Decreasing N rate moderately and increasing K rate proved to be an effective measure to raise the fruit weight and enhance disease-resistance in tomato.
出处
《西南农业大学学报（自然科学版）》
CSCD
1999年第2期166-169,共4页
Journal of Southwest Agricultural University
基金
重庆市科委茄果类(番茄
辣椒)蔬菜配方施肥研究课题
关键词
番茄
配方施肥
产量
品质
抗病能力
tomatoes
prescription fertilizing
yield
quality
disease resistance
