Articles
EFFECT OF DIFFERENT ORGANIC AND BIOFERTILIZER SOURCES ON GUAVA (PSIDIUM GUAJAVA L.) ‘SARDAR’
Article number
959_25
Pages
201 – 208
Language
English
Abstract
An investigation was conducted under sub-tropical conditions of West Bengal, India at the Horticultural Research Station of the university to standardize the organic nutrient management protocol for guava.
In this experiment, various organic sources (Farm yard manure (26 kg/plant/y), poultry manure (10 kg/plant/y), vermicompost (19 kg/plant/y) and neem cake (9 kg/plant/y)) along with various biofertilizer combinations (Azotobacter, Azospirillum, phosphorous solubilizers and potash mobilizers each at 100 g/plant/y) were tested on four-year-old guava cultivar Sardar to study its effect on growth, fruiting and yield.
The different doses of organic manures were calculated based on the 50% of potash requirement of the recommended dose of guava for the region.
The calculated dose along with biofertilizer was applied in two splits in January and August.
The results obtained showed higher fruit weight (230.5 and 224.8 g) by application of neem cake and vermicompost + Azotobacter + phosphorous solubilizers + potash mobilizers.
Maximum number of fruits produced per plant (626.3 fruits/plant) was found from plant fertilized with farm yard manure + Azotobacter + phosphorous solubilizers + potash mobilizers and caused maximum yield of 114 kg/plant as compared to 18.0 kg per plant in control.
Treatment combinations with poultry manure + Azospirillum + phosphorous solubilizers + potash mobilizers showed the highest total soluble solids (12°Brix) and total sugar content of fruit (6.67%), whereas the vitamin C content (172.6 mg/100 g pulp) was recorded maximum by application of neem cake.
Application of nutrients through organic along with biofertilizers improve soil health in terms of mean microbial population in the rhizosphere of root zone soil as compared to control.
From the present study, it can be concluded that addition of biofertilizers along with organic manure was more effective than use of organic manure alone in enhancing fruit growth parameters in guava.
Combined application of biofertilizers, P-solubilizers, K-mobilizers and N- fixers were found more effective in improving the fruit physico-chemical characters as compared to application of any biofertilizers alone.
We conclude that for cultivation of Sardar guava organically, application of farm yard manure at (26 kg/tree/year) + Azotobacter (100 g/tree) + phosphorous solubilizers (100 g/tree) + potash mobilizers (100 g/tree) in two splits (January and August) is the economically profitable treatment.
In this experiment, various organic sources (Farm yard manure (26 kg/plant/y), poultry manure (10 kg/plant/y), vermicompost (19 kg/plant/y) and neem cake (9 kg/plant/y)) along with various biofertilizer combinations (Azotobacter, Azospirillum, phosphorous solubilizers and potash mobilizers each at 100 g/plant/y) were tested on four-year-old guava cultivar Sardar to study its effect on growth, fruiting and yield.
The different doses of organic manures were calculated based on the 50% of potash requirement of the recommended dose of guava for the region.
The calculated dose along with biofertilizer was applied in two splits in January and August.
The results obtained showed higher fruit weight (230.5 and 224.8 g) by application of neem cake and vermicompost + Azotobacter + phosphorous solubilizers + potash mobilizers.
Maximum number of fruits produced per plant (626.3 fruits/plant) was found from plant fertilized with farm yard manure + Azotobacter + phosphorous solubilizers + potash mobilizers and caused maximum yield of 114 kg/plant as compared to 18.0 kg per plant in control.
Treatment combinations with poultry manure + Azospirillum + phosphorous solubilizers + potash mobilizers showed the highest total soluble solids (12°Brix) and total sugar content of fruit (6.67%), whereas the vitamin C content (172.6 mg/100 g pulp) was recorded maximum by application of neem cake.
Application of nutrients through organic along with biofertilizers improve soil health in terms of mean microbial population in the rhizosphere of root zone soil as compared to control.
From the present study, it can be concluded that addition of biofertilizers along with organic manure was more effective than use of organic manure alone in enhancing fruit growth parameters in guava.
Combined application of biofertilizers, P-solubilizers, K-mobilizers and N- fixers were found more effective in improving the fruit physico-chemical characters as compared to application of any biofertilizers alone.
We conclude that for cultivation of Sardar guava organically, application of farm yard manure at (26 kg/tree/year) + Azotobacter (100 g/tree) + phosphorous solubilizers (100 g/tree) + potash mobilizers (100 g/tree) in two splits (January and August) is the economically profitable treatment.
Authors
H.L. Devi , S.K. Mitra, S.C. Poi
Keywords
organic manure, biofertilizer, fruit quality, microbial activity
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