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试验以3种营养土为试材,番茄为供试作物,研究了不同灌水量对各营养土的理化性质及番茄产量的影响。结果表明,园土+玉米芯处理的营养土pH值普遍偏高,通气孔隙度较小,排水不良,有机质分解较慢。中水分70%处理的园土+稻草、园土+玉米秸pH值呈弱酸性,EC值在正常范围内,通气孔隙适中,且有机质分解释放养分快,为植株生长提供了充足营养,利于植株生长,产量较高。因此,中水分处理的园土+玉米秸、园土+稻草的理化性质较优。
Three kinds of nutritive soil were used as test materials and tomato was used as test material. The effects of different irrigation amount on physicochemical properties and yield of tomato were studied. The results showed that the pH values of nutritive soils treated with garden soil and corn cob were generally high, with low aeration porosity, poor drainage and slow decomposition of organic matter. Soil water + 70% treated soil + straw, garden soil + corn stalk pH value is weakly acidic, EC value in the normal range, ventilation pores moderate, and decomposition of organic matter to release nutrients fast, provide sufficient nutrition for plant growth, Growth, higher yield. Therefore, the soil water treatment + corn stalks, garden + straw physicochemical properties better.