1. Key Resource 28 ستمبر 2016 Farmers in many parts of the world, because of human population growth, have little choice but to crop their land continuously, with scarce resources to replace nutrients withdrawn by each successive crop. Crop residues are often lost as a source of organic matter and mulch, usually through...
  2. Agronomy for Sustainable Development Brian Lawrence, Abram Bicksler, Kimberly Duncan Abstract : Prevention of pests while maintaining viable seed during storage is often challenging for smallholder farmers in the tropics and subtropics. Investment in costly technologies or storage equipment is...