EFFECT OF ORGANIC AND INORGANIC FERTILIZERS ON GROWTH, LEAF, MAJOR NUTRIENT AND CHLOROPHYLL CONTENT AND YIELD OF GUAVA CV. SARDAR

An experiment was conducted at Department of Pomology, Kittur Rani Channamma College of Horticulture, Arabhavi during 2003 2004 to find out the effect of organic and inorganic fertilizers on growth, fruit characters, nutrient and chlorophyll content of leaves and yield on 6-yrs-old guava cv.
Sardar.
Application of 75 per cent RDF + 10 kg vermin-compost plant^-1 was found significant by superior in leaf area (78.55 cm²), fruit polar diameter (7.57 cm), fruit weight (222.33 g), its fruit volume (218.67), pulp thickness (2.31 cm) and pulp weight (143.67 g). Maximum contents of nitrogen (1.64%), phosphorus (0.327%) and potassium (1.30%) were noticed in the plants applied with 75 per cent RDF + 10 kg vermin-compost plant^-1 which was followed by in situ application of vermiculture (at 50 worms plant^-1) and 100 per cent RDF. Chlorophyll ‘a’ and total chlorophyll were higher (1.298 & 1.698 mg g^-1) in the plants supplied with 75 per cent RDF + 10 kg vermin-compost white chlorophyll ‘b’ was more (0.407 mg g^-1) in in situ application of vermiculture (at 50 worms plant^-1). Highest yield (33.11 kg plant^-1 and 9.19 t ha^-1) was noticed in the Plants supplied with 75 per cent RDF + 10 kg vermin-compost produced more yield followed by plants supplied with 100 per cent RDF and in situ vermiculture application (50 worms plant^-1). In situ vermiculture application and 100 per cent recommended dose of fertilizers were statistically at par with 75 per cent RDF + 10 kg vermin-compost for fruit characters, leaf nutrient and chlorophyll contents and yield.

I International Guava Symposium

S.I. Athani, H.S. Prabhuraj, A.I. Ustad, G.S.K. Swamy, P.B. Patil, Y.K. Kotikal

leaf nutrient, chlorophyll, fruiting

https://doi.org/10.17660/ActaHortic.2007.735.50