氮磷钾叶面喷施缓解番茄盐胁迫

H. Hamouda, S. Shaaban
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摘要

通过盆栽试验,研究了叶面喷施氮磷钾对番茄植株耐盐性的影响。幼苗生长在30厘米的塑料盆里,盆里填满了肥沃的沙土。每周用2g和4g两种浓度的盐(NaCl和CaCl)灌溉幼苗,幼苗喷施含氮磷钾的叶面喷雾。移栽2个月后取叶片样品,测定养分含量。结果表明,氮磷钾叶面喷施对不利盐度影响下番茄土壤、生长发育、产量和叶片植株养分浓度均有积极影响。土壤含盐量对番茄植株对养分的吸收有影响。叶面喷施对植物叶片中N、K、Ca、Fe、Mn和Cu的浓度有正向影响。
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Foliar Spraying of NPK to Relieve Salinity Stress on Tomato Plants
A pot experiment was carried out to study the effect of NPK foliar spraying on salt tolerant of tomato plants. Seedlings were grown in plastic pots 30 cm, filled with loamy sand soil. Seedlings were irrigated every week with saline two type’s salts (NaCl and CaCl) at two levels 2g and 4g L. Seedlings were sprayed with foliar spraying containing NPK. Two months later from transplanting of seedlings leaf samples were taken for determination nutrient contents. The result showed that NPK foliar spraying had a positive effect on soil, growth development, yield and the nutrient concentrations in leaf plant of tomato under the impact of adverse salinity. Although the salts levels of soil have an effect on the absorption of nutrients by tomato plant. But, foliar spraying has a positive effect on the concentration of N, K, Ca, Fe, Mn and Cu in plant leaves.
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