Effect of water regime, mulch and kaolin on growth and yield of ber (Ziziphus mauritiana Lamk).

摘要

An experiment was conducted using uniform 9 year-old plants of ber (Ziziphus mauritiana cv. Mundia) on loamy sand soil at the Horticultural Research Farm, Asalpur, Jobner, (Jaipur-Rajasthan), India, from June to March 1995-96 and 1996-97. The experiment was consisted of 24 treatment combinations of three water regimes (no irrigation, three irrigations each of 10- and 15-cm depth given at preflowering, fruit set and fruit development), four mulches (no mulch, black polyethylene, mustard straw or Tephrosia purpurea) and two kaolin treatments (no spray or two sprays of 6% kaolin at preflowering and fruit set). Increasing the water levels significantly increased growth and productivity of ber. Among the various mulches, black polythene (M1) resulted in maximum growth and productivity. In contrast, kaolin improved only the productivity. The treatment combination of 15-cm irrigation depth+black polythene+6% kaolin spray gave the highest fruit yield (13.1 t/ha).