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采用田间定位试验,研究了膜下滴灌条件下,以氮磷推荐有机肥(M0、M170N、M400N、M600N和M70P),按照氮素供应目标值和根层土壤氮素水平确定配施化肥的不同调控模式对温室番茄干物质、产量和果实品质的影响。结果表明,随着有机肥推荐量的增加,番茄干物质量增加,与单施化肥相比,以氮磷推荐有机肥对番茄干物质的影响差异不显著。以氮推荐M400N和以磷推荐M70P处理的番茄产量较高,比M0处理分别增产7.7%和5.5%,显著高于对照。以氮推荐M170N和M400N处理的番茄果实品质较好,降低番茄果实硝酸盐含量,提高Vc含量、可溶性糖和糖酸比,但对可溶性固形物和可滴定酸含量的影响不显著。综合分析番茄干物质、产量和品质指标,在本试验条件下,以磷推荐有机肥70 kg/hm2,每季追施氮肥213 kg/hm2,或以氮推荐有机肥400 kg/hm2,每季追施氮肥113 kg/hm2为设施番茄高产优质有机无机养分管理模式。
The field experiment was conducted to study the effects of chemical fertilizers on nitrogen and phosphorus fertilizers under the drip irrigating conditions. Nitrogen and phosphorous-recommended organic fertilizers (M0, M170N, M400N, M600N and M70P) Effects of Regulating Modes on Dry Matter, Yield and Fruit Quality of Tomato in Greenhouse. The results showed that with the increase of the recommended amount of organic fertilizer, the dry matter content of tomato increased, compared with the single application of chemical fertilizers, nitrogen and phosphorus recommended organic fertilizer on tomato dry matter no significant difference. The yield of tomato with nitrogen recommendation M400N and phosphorus recommendation M70P was higher than that of M0 treatment by 7.7% and 5.5% respectively, which was significantly higher than that of the control. Nitrogen recommended M170N and M400N treatment of tomato fruit quality is better, reduce tomato fruit nitrate content, increase Vc content, soluble sugar and sugar acid ratio, but the soluble solids and titratable acid content was not significant. Based on the comprehensive analysis of tomato dry matter, yield and quality indicators, under the experimental conditions, the recommended organic fertilizer 70 kg / hm2 phosphorus, topdressing nitrogen 213 kg / hm2 per season, or nitrogen recommended organic fertilizer 400 kg / hm2, quarterly Nitrogen fertilizer topdressing of 113 kg / hm2 is a high-yield and good-quality organic and inorganic nutrient management model for the facilities of tomato.