Ranchi Agricultural College, Kanke, Ranchi, Bihar
*Present address: ICAR Research Complex for N.E.H. Region, Shillong, Meghalaya
Comparative efficiency of farmyard manure, poultry manure and rice straw with and without zinc on zinc availability to maize and soybean was evaluated in a calcareous soil under greenhouse condition. On the basis of the dry-matter yield of maize, grain yield of soybean and uptake of zinc, the performance of different organic amendments follows the trend: poultry manure=farmyard manure > control > rice straw. Substantial build-up of available zinc in soil was observed by the use of above amendments.
Organic amendments, zinc availability, calcareous soil
