a field study was conducted at the college of agriculture, shiraz university, shiraz, iran to evaluate the effect of different crop residue and nitrogen rates on yield and yield components of two dryland wheat (triticum aestivum l.) cultivars. the experiment was conducted as a strip split plot with four replications. vertical plots included two dryland current wheat cultivars (azar2 and nicknej...

The challenges of soil degradation and climate change have led to the emergence Conservation Agriculture (CA) as a sustainable alternative tillage-based agriculture systems. Despite recognition positive impacts on health, CA adoption in Africa has remained low. Previous health studies mainly focused ‘scientific’ measurements, without consideration local knowledge, which influences how farmers i...

introduction: citrus are one of the important orchard fruit production that after banana is second in production at the world level and every year, chemical fertilizers having most important role in increasing crops productions, but in long application of fertilizers cause soil destructions and polluting underground water. also soils of dry regions are very poor in organic matter level. nowaday...