EFFECT OF BIO-FERTILIZER AND ORGANIC MANURES ON YIELD AND QUALITY OF GUAVA CV. RED FLESHED

Abstract

An experiment was conducted on 4-year old guava trees during 2007-08 to study the “Effect of Bio-fertilizer and organic manures on yield and quality of guava cv. Red Fleshed”. Average maximum fruit yield for the rainy and winter season crop was 38.23 kg/tree and 19.03 kg/tree respectively, with 250g Azotobactor + 20 kg FYM. Vermicompost (20kg/tree) had significantly higher yield over control
and was recommended as 3rd best treatment among all regarding the yield. Highest fruit weight 198.2g and 299.2g, fruit length 5.9cm and 7.19cm and fruit breadth 7cm and 7.41cm for rainy and winter season crop, respectively, were obtained with the application of Phosphobacterin (50ml/tree), which was, however at par with that obtained with VAM (10 kg/tree). Highest TSS (16.07 OB and 17.9 0B) for rainy and winter season crop, respectively, as well as Vitamin C (189.57 mg/100g) was obtained with the application of VAM. Acidity was not influenced by the application of bio-fertilizer. However, acidity was highest (0.54 %) under FYM treatment. From the present study, it can be concluded that the application of biofertilizer was more effective than organic manures in enhancing fruit growth
parameters in guava in both seasons. When bio-fertilizers were grouped together, P-solubilizers were found to have more beneficial influence on fruit physicochemical characteristics of guava cv. Red Fleshed as compared to N-fixers.