A field experiment was conducted at the Agrotechnology Field Laboratory of Khulna University, during boro season 2005 to find out effects poultry manure (PM) and farmyard (FYM) in presence absence chemical fertilizers on BRRI dhan28. The laid-out a randomized complete block design with three replications. There were ten treatments viz. T1: 100% RFD (Recommended fertilizer doses), T2: RFD+10 t F...

Forage-based livestock systems have been implicated as major contributors to deteriorating water quality, particularly for phosphorus (P) from commercial fertilizers and manures affecting surface and ground water quality. Little information exists regarding possible magnitudes of nutrient losses from pastures that are managed for both grazing and hay production and how these might impact adjace...

Abstract Currently, the absence of specific regulations on soil fertilization gives rise to sectorial normative with different regional approaches regarding application conditions, quality and other conditions that reused materials must meet. The purpose this case study in Galicia (NW Spain) is analyse coherence legal texts organic waste soils a more circular economy. context characterized by s...

Organic fertilization has been proposed as an alternative approach to supply nutrients for crops, in the frame of organic and sustainable agriculture, with aim decrease high inorganic rates, protect environment production costs farmers. Since different types fertilizers, such manures, olive mill wastewater (OMW), sewage sludge (SS), crushed pruning wastes, composts cover exist soil amendments i...

• Short term fallows enhance productivity, improve soil fertility and serve dual purpose in crop-livestock systems. Green manuring increased wheat grain yield by 18–26 % over mineral fertilizers. Root biomass of green manures alone subsequent crop 25 %. improved water, pH, organic carbon nutrients. Residual effect compensates 33 N demands wheat. Soil depletion is a major constraint smallholder ...