A pot experiment was conducted during Kharif season, 2005 to ascertain the response of different organic sources viz., wheat straw, farm yard manure (FYM), vermicompost and poultry manure to rice (Oryza sativa) and also to monitor the effect of manuring on soil carbon pools. Application of poultry manure and vermicompost alongwith chemical fertilizers for supply of nitrogen, phosphorus and pota...

This paper presents the possibility of producing phosphorus fertilizers through Acidithiobacillus ferrooxidans utilization in secondary raw materials solubilization. Phosphorus was obtained from the bones of poultry and fish as well as from Morocco phosphorite. Four doses of poultry bones and fish bones were used in the experiment (2, 4, 10 and 20 g/L) and two doses (2 and 4 g/L) of phosphorite...

Morocco harbors the largest reserves of rock phosphate worldwide. The natural rock phosphate may constitute a valuable alternative source of phosphorus fertilizer, when a biotechnological process could be applied to promote its solubilization and make phosphorus available to the plants (Hamdali et al., 2008a; Chang and Yang, 2009; Park et al., 2011). Bioinoculums are most promising fertilizers ...

in order to study the effect of biological and chemical fertilizers of nitrogen and phosphorus on some physiological, morphological and phenological traits of sunflower this study was carried out in eivanegharb (ilam province) in summer of 2011. treatments were arranged in split factorial based on rcbd with three replications. the main plot include 4 levels of phosphorus and nitrogen chemical f...

Repeated application of manures to agricultural soils could cause the accumulation of phosphorus (P) in soils. However, it is unclear if manure P can behave similar to P in soluble fertilizers in accumulation Olsen-P (0.5 mol L-1 NaHCO3 at pH 8.5) in soils. A long-term wheat-maize rotation experiment was conducted to investigate the effects of repeated application of manures on P accumulation i...

Abstract The crop rotation productivity depends on the crops and chemicals used, especially fertilizers. Cultivation of makes it possible to obtain environmentally safe products due biologically correctly selected predecessors with correct alternation in space time. This allows for savings plant protection differentiated use Based results 28-year research into yield various doses fertilizers, r...

The purpose of the research is to obtain micronutrient fertilizers by applying salts and their complex forms phosphorus obtained in incomplete standards nitric acid or salt mixtures. Central Kyzylkum phosphorites (low-grade P 2 O 5 -12.38%, CaO-43.68%, CO -13.48%, non-enriched -16.38%, CaO-45.93%, -18, 15%, SO 3 -1.86%, thermoconcentrate -27.40%; CaO-54.68%; - 4.52%) were decomposed with at dif...

Abstract Silicate minerals constitute the main components in silicon (Si)-rich biomass, affecting phosphorus (P) adsorption and release competencies of mineral-engineered biochar; however, mechanisms underlying their differences remain largely unresolved. To examine these interactions, we investigated mineralogical compositions quantified P-adsorption capacities Al-, Fe-, Mn-, Zn-, Mg-engineere...