施用土壤调理剂提高茄子产量及其土壤养分含量的研究

Study on Improving Yield of Eggplant and Soil Nutrient Content with Soil Conditioner Application

在设施栽培条件下,探讨了春茬茄子产量、品质和农学性状、以及土壤养分含量对四种肥料和土壤调理剂组合模式的响应。结果表明,与对照施肥模式(有机肥30000 kg·hm^-2,复合肥750 kg·hm^-2,硫酸钾112.5 kg·hm^-2)相比,新绛和仲元两种组合模式可显著提高了茄子产量和维生素C含量,降低其硝酸盐含量。从收获后土壤养分含量上看,新绛模式和仲元模式土壤pH值和全盐含量均有所降低,有机质,速效氮、有效磷和速效钾含量有所提高。因此,仲元肥料模式为本次温室试验条件下的最优养分配比。

The study was conducted in facility greenhouse in Tianjin,to explore the response of yield,quality and biological characteristics of spring eggplant,as well as soil nutrient content on four fertilization modes and soil conditioner with biological inoculants.The results showed that compared with the control fertilization mode(organic fertilizer 30000 kg·hm^-2,compound fertilizer 750 kg·hm^-2,K2SO4112.5 kg·hm^-2),Xinjiang and Zhongyuan fertilization mode significantly increased the yield of eggplant.On the quality of eggplant,Xinjiang and Zhongyuan fertilization mode significantly increased vitamin C content,decreased nitrate content.In the terms of soil nutrient content,compared with the basic nutrient content of soil before eggplant planting,the Xinjiang and the Zhongyuan model both reduced the pH value and total salt content,and increased the organic matter,available nitrogen,phosphorus and potassium content.Therefore,the application of fertilizer model with soil conditioner on Zhongyuan was the optimal nutrient allocation ratio under the facility greenhouse condition.