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Chinese Agricultural Science Bulletin ›› 2008, Vol. 24 ›› Issue (10): 300-305.

Special Issue: 园艺

• 土壤肥料科学 • Previous Articles     Next Articles

Effect of Different Organic Fertilizers on Growth and Quality of Tomato

SONGDONGTAO SONG   

  • Received:2008-05-29 Revised:2008-07-19 Online:2008-10-05 Published:2008-10-05

Abstract: The effect of different organic fertilizers on the growth、nutrient balance and fruit quality of tomato was studied in the organic agriculture field. The fertilizers used in the experiment were farm manure 、commercial organic fertilizer 、biogas residues and which under the same N input condition. and on this basis, included commercial organic fertilizer was designed to three fertilization levels. The results showed that: With limited amounts, all the treatments can advance tomato growth markedly. the plant height、stem diameter、the bud number and Chlorophyll content were better than CK, and which could increase the yield markedly. under the same N input condition, all fertilizers increase yield by 9.2%-14.4%. the balance indexes of nitrogen,phosphorus and potassium in organic fertilizer,which is ratio of amount of supplied nutrient to amount of absorbed nutrient by plants, were limited between 3.06~3.35、7.77~23.65、1.66~2.88 respectively. Use efficiency of nitrogen,phosphorus and potassium in organic fertilizer were limited between 7.37%~9.51%、1.49%~4.39%、9.10%~15.32% respectively. With increase of organic fertilizer rate, there was no markedly effect in promoted the nutrient absorption. nutrients use efficiency decreased and the balance indexes increased by more fertilizer application. With limited amounts could increased soluble sugar content、the soluble solids、vitamin C and sugar-acidity rate,reduced nitrate content in plant,and increased fruit quality of tomato. The research showed that: Utilization of Organic Waste Resources could increase the yield and improved the quality. Excessive fertilization could not improve the yield and quality,increased risk of environmental pollution oppositely.