information about forms of phosphorus (p) is important for the evaluation of p status in soil and also understanding of the soil fertility and plant nutrition. to obtain such information and to determine the relationship between the p forms from soil characteristics, amount of different organic and inorganic p forms of 20 soil composite samples of eastern azerbaijan province, iran were determin...

Soil health and fertility are indexed by soil organic carbon (SOC) content. management through good agricultural practices that enhance sustain SOC is vital for fertility. We examined the influence of strategies on concentrations in different particle size fractions under a maize cropping system. laid experiment randomized complete block design, with 14 treatments replicated 4 times, used follo...

lar amounts of total P as TC, but a larger proportion of that P exists as phosphate rather than phytate (Ertl Swine (Sus scrofa) slurry can serve as an excellent fertilizer source. et al., 1998). Bioavailability of P in LPC is higher than Application at rates to meet crop N requirements can result in excess soil P due to low manure N/P ratios. Low phytate corn (LPC) (Zea in TC for nonruminant a...

A laboratory incubation experiment was conducted during December, 2017 to March, 2018 in Department of Soil Science and Agricultural Chemistry, College Agriculture, Raichur, Karnataka, India study the fractionation phosphorus (P) black soil amended with different phosphatic fertilizers under submerged condition. The were kept subemerged condition for 90 days phophatic such as single super phosp...

Neolithic and Bronze Age topsoil relicts revealed enhanced extractable phosphorus (P) and plant available inorganic P fractions, thus raising the question whether there was targeted soil amelioration in prehistoric times. This study aimed (i) at assessing the overall nutrient status and the soil organic matter content of these arable topsoil relicts, and (ii) at tracing ancient soil fertilizing...

Brazilian semi-arid tropical is responsible for the production and export of fine table grapes, but demand phosphate fertilizers other agricultural inputs increases cost threatens local water bodies by leaching phosphorus (P). The objectives this study were to quantify organic inorganic fractions P determine chemical microbiological attributes related its mineralization in soils cultivated with...

The Florida Everglades wetland ecosystem is subject to changes in hydroperiod and nutrient loading, resulting in soil P enrichment and changes in vegetation communities. The objectives of this study were to: (i) quantify the forms of inorganic and organic P in soils from four hydrologic units of the Everglades, and (ii) develop empirical relationships among various soil P forms. Soil samples fr...

in a greenhouse experiment, changes in inorganic phosphorus fractions as well as their availability in the rhizosphere of rice (oryza sativa c.v. khazar) crop, following an application of 40 mg p (as monocalcium phosphate per kg of soil) were investigated in paddy soils north of iran. the study was performed as a 14×2 factorial in a completely randomized design of two factors namely: soil at 14...

In order to discover the advantages and disadvantages of different fertilization regimes and identify the best management practice of fertilization in greenhouse fields, soil enzyme activities involved in carbon (C) transformations, soil chemical characteristics, and crop yields were monitored after long-term (20-year) fertilization regimes, including no fertilizer (CK), 300 kg N ha-1 and 600 k...

Phosphorus (P) plays an important role in the physiological plant processes; however, tropical soils, P is one of most limiting nutrients for crop yield due to its low mobility, determined by adsorption this element soil. To enhance P-use and P-acquisition efficiency, research aimed evaluate effect cover crops mycorrhizal colonization on changing soil fractions, both organic inorganic. A comple...