EFFECT OF FERTIGATION SCHEDULING ON YIELD AND QUALITY OF SWEET ORANGE (CITRUS SINENSIS L.) UNDER NALGONDA DISTRICT, A.P, INDIAG. LAKPATHI, D. UMA MAHESHWARA RAO AND P. RAJANIKANTHAbstract An investigation was carried out to study the effect of fertigation on 14 years sweet orange in Ambe Bahar production season at Velmagudem and Annaram villages of Nalgonda. Fertilizer application through drip system to 14 years old sweet orange orchard produced favorable effect on minimum number of day to flowering (25 days), more number of fruits per tree (815), fruit diameter (30.17 cm) and average fruit weight (176.78 g). It shown significant variations as productivity was increased from 79.42 kg to 144.14 kg per tree and also improved fruit quality parameters viz., TSS increase from 7.59 to 9.96o Brix (oB = Degree Brix) and acidity decrease from 1.03 to 0.80 per cent
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