EFFECT OF ORGANIC MANURES ON GROWTH, YIELD AND QUALITY OF GUAVA (Psidium guajava L.) cv. L-49 UNDER HDP SYSTEM
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Date
2018-01
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K.R.C. COLLEGE OF HORTICULTURE COLLEGE OF ARABHAVI (UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT)
Abstract
A field experiment was conducted at the Horticultural Research and Extention Station, Hidkal Dam, (under University of Horticultural Sciences, Bagalkot), Tq. Hukkeri, Dist. Belagavi, Karnataka, during kharif, 2016, by applying different sources of organic nutrients [FYM @ 10 kg/pl, vermicompost @ 6.25 kg/pl, poultry manure 1.65 kg/pl, neem cake @ 962 g/pl, press mud @ 4 kg/pl, sunhemp green manure @ 2.17 kg/pl, RDF (50:25:75 g N.P.K/plant + 10 kg FYM/plant)] on guava cv. L-49 in order to assess growth, yield and quality.
Application of nutrients irrespective of their sources influenced growth, yield and quality of guava. The maximum plant height (2.53 m), plant spread along E-W direction (2.37 m) and N-S direction (2.43 m) at harvest, highest number of flowers per plant (44.3 flowers), fruit set percentage (75.8 %), minimum days taken for flower initiation (31 days) and days taken from fruit set to harvest (98 days), maximum fruit weight (138.67 gm), fruit length (6.24 cm), fruit diameter (6.31 cm), fruit volume (135 ml), shelf life (7.22 days), yield per plant (3.36 kg/pl), yield per hectare (7.45 t/ha), total soluble solids (13.30 0B), Ascorbic acid (196.01 mg/100g), reducing sugars (5.46%), total sugars (8.32%) and TSS : Acid (61.04) were recorded in T2 (vermicompost @ 6.25 kg per pl) followed by T4 (neem cake @ 962 g per pl).
The analysis of nutrient content in leaf and available nutrients in soil was carried out and the maximum nitrogen content (1.34%), phosphorus content (0.34%) and potassium content (1.38%) in leaf and the maximum availability of organic carbon (0.64%) nitrogen (246.7 kg/ha), phosphorous (23.32 kg/ha) and potassium (183.42 kg/ha) in soil was observed under T2 (vermicompost @ 6.25 kg per pl). Among the different organic sources, vermicompost and neem cake resulted in better growth, yield and quality of fruits.
Economic analysis of use of organics was carried out in which the cost of cultivation (Rs. 50,778) was maximum for T7 (control), the net returns was highest (Rs. 42,358) for T2 (vermicompost @ 6.25 kg per pl) and the benefit cost ratio was highest (2.64) for T3 (poultry manure @ 1.65 kg per pl).
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TH628
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