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地膜覆盖栽培蔬菜能提早成熟,提高产量,特别是明显地提高早期产量。但是采用地膜覆盖栽培往往出现植株早衰的现象。为此本试验通过对地膜覆盖下番茄整个生育期内土壤养分变化、植株营养变化规律及其对植株生长发育影响进行了研究,为防止植株早衰、制定合理施肥措施和栽培方法提供科学依据。一、材料及方法番茄品种为强力米寿。试验处理:对照,不覆膜;施有机肥5000公斤/亩;A_(?)覆膜,施有机肥5000公斤/亩;A_(1.5)覆膜,施有机肥7500公斤/亩;A_(0.5)覆膜,施有机肥2500公斤/亩。在东北农学院园艺试验站进行。分设取样区与测产区。随机区组,三次重复。株距40厘
Mulch mulching vegetables can prematurely mature, increase yield, especially significantly increase early yield. However, the use of plastic film mulching plants often appear premature aging phenomenon. In this study, we studied the changes of soil nutrients, plant nutrition and the effects on plant growth and development during the whole growth period of tomato under plastic film mulching, and provided scientific evidences for preventing premature aging and formulating reasonable fertilization measures and cultivation methods. First, materials and methods Tomato variety is strong Mishou. A_ (0.5) mulch, applied organic fertilizer 7500 kg / mu; A_ (0.5) mulch, applied organic fertilizer 5000 kg / mu; ) Film, organic fertilizer 2500 kg / acre. Northeast Agricultural College horticultural test station. Divided sampling and testing areas. Randomized block, repeated three times. Strain 40%