Effects of Different Fertilization Control Measures on the Yield,Nutrient Utilization and Quality of Tomatoes in Facilities
Aiming at the problems of the unreasonable fertilization,the increase of quantity,decrease of quality in supply and so on in the pro-duction of protected vegetable in Hebei Province,facility tomato was as the research object,treatments of farmers'habit fertilization and differ-ent fertilization measures were set to study on tomato yield,quality,nutrient utilization and economic benefits.The results showed that compared with the treatment of farmers'habit fertilization,rational formula fertilizer and its combination with biological bacteria and calcium fertilizer could improve tomato single fruit weight 2.9%-29.7%,yield 3.8%-43%,dry matter accumulation 0.62%-17.4%,N and P absorption and uti-lization 26.2%-74.1%、24.6%-71.6%,improve fruit Vc up to 6.4%,soluble sugar up to 34.4%and decrease total acidity up to 15.7%,in-crease pure economic benefit.IFI2(inorganic formula fertilizer combined with biological fertilizer produced by Chunyu)and IFI3(inorganic formula fertilizer combined with self-made bacteria agent and calcium fertilizer)had better comprehensive effect.
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