PJB-2008-163
EARLY WINTER SPRAY OF LOW BIURET UREA IMPROVES MARKETABLE YIELD AND FRUIT QUALITY OF SWEET ORANGES
BASHARAT ALI SALEEM 1, AMAN ULLAH MALIK1, MUHAMMAD MAQBOOL2, ISLAM-UD-DIN3, MUHAMMAD FAROOQ4, AND ISHTIAQ AHMAD RAJWANA5
Abstract
The purpose of this study was to determine the optimum time of low-biuret urea (LBU) applied as a foliar spray to improve marketable yield and fruit quality of Sweet Orange (Citrus sinensis L. Osbeck.) cv “Blood Red”. Two percent solution of LBU was sprayed on 15 years old plants to the point of run off, on 15th of October, November and December in 2004. Simple water spray was used as control. Plants selected for the experiment were grafted on rough lemon (Citrus jambhiri Lush.) rootstock and were grown at University of Agriculture Faisalabad (Latitude 31° 25' North; Longitude: 73° 09'), Pakistan. Experiment was laid out in RCBD, using single plant as a treatment unit with three replicates. Foliar spray of 2% LBU on 15th November
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