Tomato was used as the test material,the effects of different application rates and ratios of different humic acid compound fertilizers on yield,quality index and economic benefit of processing tomato were compared under mulch drip irrigation,in order to determine the appropriate dosage and method for the application of humic acid fertilizer for processing tomato in Xinjiang.The results showed that increasing humic acid compound fertilizer could improve the processing tomato boll number per plant,the single fruit weight and yield.The number of the fruit number per plant increase was the main factor of yield increase.Humic acid compound fertilizer significantly influenced on contents of soluble solids,lycopene,nitrate and nitrite,total acid,total sugar and vitamin C and pH of processing tomatoes.Potassium sulfate and potassium chloride on the quality difference,potassium sulfate was mainly manifested on lycopene,nitrate,total acid,potassium chloride was mainly embodied in the solid content,pH,total sugar and vitamin C content.The potassium sulfate was appropriate in the basal fertilizer.Potassium chloride was suitable in the topdressing fertilizer.In terms of comprehensive performance appropriate formula in the range of processing tomato humic acid compound fertilizer that were N-P-K=9-17-12,humic acid compound was 17.5kg,trace element was 0.5kg,organic matter was 12.5kg,bentonite was 7.5kg.The ratio of humic acid compound fertilizer could be used for based fertilizer.The content of humic acid compound fertilizer was 600kg·hm-2. According to the formula for N was 115g·L-1;K was 50g·L-1;humic acid was 161g·L-1,trace elements was 0.3g·L-1 of the compound fertilizer as the topdressing period of fertilizer,fertilizer once every 7days,according to 2 100L·hm-2.The yield increased 10.73％than control(no humic acid compound fertilizer).%以番茄为试材,采用膜下滴灌方式,对比不同腐植酸复混肥的施用量和配比对番茄的产量与品质指标及经济效益的影响,以确定适合新疆地区加工番茄施腐植酸肥施用的适宜用量和方法.结果表明:增施腐植酸复混肥均能提高加工番茄的单株结铃数、单果质量和产量;腐植酸复混肥对加工番茄的可溶性固形物、番茄红素、硝酸盐、亚硝酸盐、总酸、总糖和维生素C含量及pH影响显著.硫酸钾和氯化钾在番茄品质上的作用有差异,硫酸钾主要增加了番茄红素、硝酸盐、总酸含量,氯化钾主要增加了pH、可溶性固形物、总糖、维生素C含量,其中硫酸钾适宜配在基肥中,氯化钾适宜配在追肥中.综合性价比,适宜推荐加工番茄腐植酸复混肥基肥配方为N-P-K配比9-17-12,腐植酸为17.5kg,微量元素为0.5kg,有机质为12.5kg,膨润土为7.5kg.复混肥追肥配方N为115g·L-1,K为50g·L-1,腐植酸为161g·L-1,微量元素为0.3g·L-1,每7d追肥一次,追肥2 100L·hm-2,增产幅度达到10.73％.
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