documenting the production process in agriculture includes providing all information and activities that shows the course of production from seedbed preparation stage to harvest stage. for this purpose, in present investigation all management operations performed from seedbed preparation stage to harvest stage in the studied wheat fields in 2007 and 2008 were recorded through farms survey. in t...

Rock phosphates are less soluble and agronomically not as efficient the acidulated. However, some rhizobacteria can improve solubilization of inorganic in soil, raising efficiency rock phosphates. The objective was to evaluate development maize plants response application P sources associated with inoculation. A greenhouse experiment carried out six sources: no application; ​​Triple Superphosph...

To assessment growth physiological charachteristics of two hybrids of sweet corn affected different irrigation pattern and zinc fertilization, a research was conducted as split plot factorial experiment based on randomized complete blocks design with three replications. Main factor included different levels of irrigation pattern included conventional furrow irrigation, fixed every other furrow ...

introduction: citrus are one of the important orchard fruit production that after banana is second in production at the world level and every year, chemical fertilizers having most important role in increasing crops productions, but in long application of fertilizers cause soil destructions and polluting underground water. also soils of dry regions are very poor in organic matter level. nowaday...

The benefits of applying phosphogypsum to the soil are widely known. However, effect on phosphate fertilization efficiency is still unclear. A long-term field experiment was performed an Oxisol in Parana State, Brazil evaluate effects triple superphosphate (TSP) and application rates nutrition grain yield soybean, wheat, black oat under no-till. Applying TSP sowing furrow soybean wheat increase...

It is well known that mechanochemically activated phosphate rock (MAPR) could improve extractable phosphorus (P) (extracted in 2% citric acid) greatly an ecological way. To evaluate the agronomic effectiveness of MAPR, we conducted a field experiment using spring maize Luvisol (pH 6.47) soil Northeast China for three consecutive years. Treatments consist variation P levels substitution triple s...

Sorghum bicolor is an important grain species used for food and feed production, where P a key element/nutrient in production. The effect of increasing phosphorus doses to sorghum Cerrado soil with sandy texture low fertility conditions was evaluated. study conducted at the Pântano Farm, Jataí, Goiás, Brazil. cultivar AG 1085. 0 (control), 40, 80, 120, 160 kg ha-1 P2O5 were used, whose source t...

Excessive fertilization with organic and/or inorganic P amendments to cropland increases the potential risk of P loss to surface waters. The objective of this study was to evaluate the effects of soil test P level, source, and application method of P amendments on P in runoff following soybean [Glycine max (L.) Merr.]. The treatments consisted of two rates of swine (Sus scrofa domestica) liquid...

Biopolymer-coated phosphorus fertilizers have shown promising results in slowing the release of P. However, their dissolution behaviour has been studied mainly water, and impacts on soil properties rarely addressed. The aim this study was to compare P from uncoated triple superphosphate (TSP) biopolymer-coated TSP at surface cropped Mediterranean soils evaluate pH distributions several pools. e...