【摘要】 在日光温室栽培条件下研究了两种不同养分配比控释掺混肥对番茄生长及产量的影响。结果表明,施用控释掺混肥处理的番茄株高、茎粗显著优于普通化肥(T2);减量20%的控释掺混肥处理(T3)的总叶绿素含量增加幅度最大;且减量20%和40%的控释掺混肥处理均有利于提高番茄的根系活力。两种养分配比条件下,在氮磷钾配比为1∶0.5∶1.75,即控释掺混肥Ⅱ处理条件下,更有利于番茄的增产,且肥料总量减少40%(T5)增产效果仍然明显。更多还原

【Abstract】 The effects of controlled-release mixing fertilizers with different formulation of primary nutrients on growth and yield of tomato in greenhouse were studied.The results were as follows.Compared with the common fertilizer treatment,the treatment of controlled-release mixing fertilizers increased the plant height and stem diameter of tomato significantly;under the treatment of controlled-release mixing fertilizers with 20% decrement(T4),the increase of the total chlorophyll content was the most;the treatments of controlled-release mixing fertilizers with 20% and 40% decrement were both beneficial to the increase of tomato root activity.Comparing the two kinds of controlled-release mixing fertilizers with different formulation of primary nutrients,the controlled-release mixing fertilizer Ⅱ with N∶P2O5∶K2O=1∶0.5∶1.75 was more suitable for yield increasing and the treatment with 40% decrement still increased the tomato yield obviously.更多还原