摘要
试验从加工番茄开花期开始，设4个水分处理（分别以0～60cm土层灌前土壤田间持水量的40％～45％、55％～60％、70％～75％和85％～90％作为各处理的灌溉下限含水量临界值，灌溉上限为田间持水量的90％），分析不同水分状况下加工番茄的产量和果实品质。试验结果表明，加工番茄的产量、品质与土壤含水量密切相关，灌前过高或过低的土壤含水量会影响产量及茄红素、可溶性固形物、可溶性糖、可溶性酸等品质指标，灌前土壤相对田间持水量为70％～75％处理的加工番茄产量最高，品质较好，水分利用效率最高，既能实现高产高效，又可达到节水灌溉的目的。
Started from flowering period of processed tomato, the experiment set up four treatments, in which the lower limit of water moisture content was 40%-45%, 55-460%, 70-75%, 85-90% of field moisture capacity before irrigation in 0-60 cm soil layer, and the upper limit was 90% of field moisture capacity , to analyze the yield and quality of processed tomato under different soil moisture content . The experimental result showed that yield and quality of processed tomato had close relation with soil moisture content. Excessive or too low water moisture content before irrigation will affect yield and quantity indexes of lycopene, soluble solids, soluble sugar, and soluble acid. The treatment, with the soil water content of 70%-75% of field moisture capacity before irrigation, gained the highest yield, better quality and the highest water using efficiency. So it can realize the target of high yield, high efficiency and water-saving irrigation.
出处
《节水灌溉》
北大核心
2006年第4期1-4,共4页
Water Saving Irrigation
基金
国家自然科学基金资助项目(30560068)
新疆生产建设兵团科技攻关项目(04GG02)
关键词
土壤水分
加工番茄
节水灌溉
soil moisture content
processed tomato
water saving irrigation
