this study was done with the aim of investigating the kinetics of available phosphorus changes in treated soils with municipal solid waste compost, fertilizer and the mixture of these in two levels of first and second percent in eight calcareous soil samples and in a period of zero to 3600 hours in incubation conditions (fc moisture and 250c). the results showed that with time increasing, extra...

phosphorus (p) sorption in soils is a key process governing its availability to crops. there has been scanty information available on the p sorption characteristics of calcare-ous soils of western azarbaijan province, iran. in this study, p sorption characteristics and their relationship to soil properties were determined in 36 soil samples belonging to 15 agricultural soil series located in th...

The effect and relative contributions of C P inputs on soil microbial biomass (MBP) accumulation were studied in three long-term fertility experiments with various climate characteristics at Qiyang, Yangling, Wulumuqi. maximum MBP all sites was 47.8 mg kg-1. accumulated per unit (mg kg-1 soil) correlated a 4.91 increase Olsen P. For each surplus (kg ha-1), manure stubble increased by 330, 3.7, ...

Trees impact the chemical properties of soil in which they grow. When planting forests, choice tree species and combinations is thus expected to partly determine spatial variation properties, even early stages forest development. We made use a biodiversity-ecosystem functioning experiment Belgium, FORBIO (FORest BIOdiversity Ecosystem Functioning). The studied site situated on former agricultur...

Abstract Background Organic farmers frequently report sufficient yield levels despite low or even very soil phosphorous (P) contents questioning the applicability of widely used laboratory methods for P testing organic farming. Aims The aim this study was to compare validity a broad range different extraction on soils under management from South West Germany and test correlation measured concen...

Manure characteristics can influence the potential for P transfer in runoff following land application of manures. This research assessed the influence of manure characteristics on P solubility in calcareous soils using manures from poultry (Gallus Domisticus) fed a variety of grain-based diets with the manures containing a range of total P (5.6–16.4 g P kg), water-extractable P (WEP, 0.9–4.7 g...

the effects of banana continuous cropping on soil quality and chemical properties and crop yield were investigated under continuous cropping for 1, 3, 5, 7, 10, and 15 years in hainan province, china. the results indicated that the contents of total n, total k, available k, nh4-n, exchangeable ca, and available cu tended to increase, while total organic c (toc), available s, and available zn te...