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探讨有机肥无机肥的合理配施比例,对新建设施菜田土壤肥力、蔬菜产量和品质的影响。以作物高产所需纯氮为基准,研究在等氮条件下合理的有机肥无机肥配施比例,以芹菜和番茄为供试蔬菜,在新建设施菜田上进行田间试验。结果表明,有机无机配施能显著提高土壤有机质含量,保证充足的速效养分供应;降低土壤容重,改善土壤孔隙结构,提高土壤保水能力,培肥效果明显;蔬菜的有机肥无机肥合理配比,芹菜和番茄施肥的有机肥与无机肥之比均为1/3∶2/3~1/2∶1/2时产量和品质水平较佳。
To explore the reasonable ratio of organic manure and inorganic fertilizers to soil fertility, vegetable yield and quality of newly-built vegetable field. Taking the pure nitrogen required for high yield of crops as reference, the proportion of organic manure and inorganic fertilizers applied under the equal nitrogen condition was studied. The celery and tomato were used as the tested vegetables, and field experiments were conducted on the newly constructed vegetable fields. The results showed that the combination of organic and inorganic could significantly increase the content of organic matter in soil and ensure adequate supply of available nutrients; reduce soil bulk density, improve soil pore structure, improve soil water retention capacity, Celery and tomato fertilizer organic manure and inorganic fertilizer ratio of 1/3: 2/3 ~ 1/2: 1/2 when the level of yield and quality better.