PJB-2007-217
COMPARATIVE USE OF ORGANIC SUBSTRATES AND MINERAL FERTILIZERS IN GROWING MAIZE (ZEA MAYS L.) FOR MAINTAINING SOIL FERTILITY IN RAINFED AREA OF PAKISTAN
SHER MUHAMMAD1* AND T.S. MUHAMMAD2
Abstract
At present Pakistan has 22 m ha of arable land out of which 4.59 million hectares are rainfed. About 1.8 million hectares of Pothowar Plateau comprises of Fatehjang¸ Murree¸ Attock and Jehlum. The topography of this region is uneven and sloppy lands are confronted with loss of fertility due to erosion problem. The rainfed area contributes about 24% in total crop yield of Pakistan. The fertility status of these soils ranges from low to very low. So, it is very important to adopt management strategies for nutrients replenishment in this area. Effects of mineral fertilizers, leguminous straw (chickpea) and leaf litter incorporated in an alkaline soil from Pakistan (0.80% Corg, 3.94 µg g-1 soil, NaHCO3 extractable P 2.32 µg g-1 NO3-N, pH 8.2, ECe 0.56 dS cm-1
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