Abstract:

Abstract : The plant height, fruit number, fruit maturation rate, fruit quality, yield and quality of tomato were exzamined in field experiments using biogas fertilizer in 2010-2011. The results showed that: plant height, fruit number per plant of tomato were significantly improved with the increase of the content of biogas fertilizer, but the fruit ripening rate and average fruit mass of tomato increased at first and then decrease. Yield of T4 (biogas fertilizer 52500 kg·hm-2+ diammonium phosphate 300 kg·hm-2 ) was the highest, which was 84375 kg·hm-2. The Vc and total soluble sugar content of friut were highest in T5 (biogas fertilizer 60000 kg·hm-2 + diammonium phosphate 300 kg·hm-2 ), which were 127.37 mg·kg-1 and 6.03%, respectively. Nitrate content of tomato increased with the increase of biogas fertilizers.