EFFECT OF FOLIAR SPRAY OF WATER SOLUBLE NUTRIENTS ON FRUIT SET, RETENTION AND YIELD IN CASHEW (ANACARDIUM OCCIDENTALE L.) CV. VENGURLA-4 UNDER SOUTH GUJARAT CONDITIONSR.C. Gajbhiye, B.V. Padhiar and N.I. Shah
An experiment was conducted to access the efficacy of water soluble nutrients (fertilizers) with reference to fruit set and fruit retention in cashew cv. Vengurla-4, at Agriculture Experimental Station, Paria-396 145, Tal. Pardi, Dist. Valsad (Gujarat) during the year 2011-12 and 2012-13 under rainfed conditions with eleven treatments viz., 19:19:19 (1% and 2%), 0:52:34 (1% and 2%), 13:0:45 (1% and 2%), 0:0:50 (1% and 2%), urea (2%), MgSO4 (3%) and control with three replications in randomized block design. Uniform 8 years old trees of cashew cv. Vengurla-4 planted at 8m x 8m spacing were selected for experimentation. The recommended dose of fertilizers was applied twice to all the treatments including control. All the water soluble fertilizers sprays were applied thrice; at flushing, flowering and fruit set. During the experimentation, fruiting attributes were recorded at appropriate stages. In present investigation, fruiting parameters of cashew Vengurla-4 were significantly influenced by different grades of water soluble nutrients (fertilizers) during both the years and pooled study. Among the different treatments tried, urea @ 2% (T9) and 19:19:19 @ 2% (T2) were found significantly superior in respect of enhancement of number of nuts/panicle, fruit set (%), number of nuts at marble stage, fruit retention (%) and number of fruits harvested/panicle of cashew cv. Vengurla-4 over rest of treatments including control; while, it was lowest under control during both the years and pooled study.
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