Effect of bio-fertilizers and inorganic fertilizers on fruit set and yield of sapota (Manilkara achras (Mill.) Forseberg). CV. Kalipatti

Abstract

The experiment was laid out in factorial randomized block design with two factors i.e. bio-fertilizers and chemical fertilizers. These factors consist of four and three levels respectively, twelve treatment combination and three replications. The bio-fertilizers in combination with chemical fertilizers also influenced the yield parameters and quality of fruits. The treatment combination N1B3 (100 per cent NPK + Azospirillum and PSB) recorded maximum number of fruits and maximum weight of fruits. The physico-chemical parameters of sapota also recorded maximum by application of 75% dose of chemical fertilizer with Azospirillum and PSB viz. T.S.S. and reducing sugar, non-reducing sugar, total sugar of fruit was observed maximum with same treatment. In the present experiment the treatment N1B3 with application of full dose of chemical fertilizer (100% NPK) combined with Azospirillum (200g) and PSB (200g) performs well in respect of growth, yield and quality of Sapota which followed by treatment with (75% NPK ) chemical fertilizers combined with Azospirillum(200g) and PSB (200g) with maximum economical returns.