Traditionally, sulfur responses have been limited to coarse textured or other soils low in organic matter that have little potential for sulfur mineralization. In the past, the burning of fossil fuels has contributed a significant amount of sulfur through deposition in rain. Also, many phosphorus fertilizers contained sulfur as impurities, which lessened the need for the application of sulfur t...

Through the intensive use of fertilizers green revolution has been successful in increasing agricultural production but the spot of ground where the corn and plants grew has changed beyond recognition. In the race of producing more food at any cost, soils in countries like India has badly deteriorated. Industrialization, urbanization and infrastructural developments have reduced agricultural la...

in order to study of the effect of seed inoculation with pgpr on nitrogen and phosphorus use efficiency of spring wheat in different levels of nitrogen and phosphorus fertilizers, an experimental was conducted at the research farm of mohageh ardabili university, ardabil, iran during 2012 year. the combination of nitrogen fertilizer in three levels (0, 40 and 80 kg n/ha as urea) and phosphorus f...

Long-term application of fertilizers containing P, especially organic fertilizers, usually increases the water soluble and available P of soil and at the same time may result in P accumulation in soil. Organic fertilizers may also increase movement of P in the soil profile that could result in surface and ground water pollution. An experiment was conducted on field plots that received three app...

introduction and aim: sennai (cassia angustifolia vahl) is one of the valuable plants which used to constipation treatment. production of organic plants is one of the goals of medicinal plant production, this is possible with the application of bio-fertilizers. in the past decades due to the use of chemical fertilizers numerous environmental impacts, including soil and water pollution problems ...

Fertilizers are often applied according to nitrogen requirement; however, recent evidence suggests that phosphorus (P) may pose as much, if not more, of an environmental threat. The objective of this research was to quantify the differences in phosphate-phosphorus losses in runoff from two organic fertilizers (poultry litter and composted dairy manure) and one inorganic fertilizer control, appl...

Matching biosolids application rates to crop phosphorus (P) needs requires quantifying the P fertilizer replacement value of biosolids. Neutral ammonium citrate (NAC) extraction of P, used for assessing available P in mineral fertilizers, was evaluated for 35 different biosolids. Biosolids NAC-P was not statistically different (p 1⁄4 0.05) from total P using strong acid digestion (EPA 3051-P). ...

Food production in Europe is dependent on imported phosphorus (P) fertilizers, but P use is inefficient and losses to the environment high. Here, we discuss possible solutions by changes in P management. We argue that not only the use of P fertilizers and P additives in feed could be reduced by fine-tuning fertilization and feeding to actual nutrient requirements, but also P from waste has to b...

The story of phosphorus began with the search for the philosopher’s stone, and centuries later the critical role of phosphorus in soil fertility and crop growth was highlighted. Eventually, phosphorus was implicated in the global environmental challenge of eutrophication. Now, we are on the brink of yet another emerging chapter in the story: global phosphorus scarcity linked to food security. T...