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...

in order to study the effects of different levels of cow and chicken manure and elemental sulfur (s) on availability of plant nutrients and their uptake by corn (zea mays l.), a factorial experiment was conducted using a completely randomized design and three replication. experimental treatments were three levels (0, 10 and 20 ton ha-1) of cow and chicken manures, and three levels (0, 0.25% and...

The expansion of the dairy industry in southern Idaho has led to increased application of manures to meet crop nutrient demands that can alter the uptake pattern of both macronutrients and micronutrients. A greenhouse study was conducted to determine the effects of dairy manure, composted dairy manure, and fertilizer (monoammonium phosphate) application on soil test phosphorus (P), microbial ac...

• Changes in P chemistry were determined 13–24 years after wood ash and N application. The speciation forest organic layer was assessed by X-ray micro-spectroscopy. As Ca-bound the dissolved, solubility Al- Fe-bound increased. high of treatment increased uptake trees. fertilization plants decreased easily available P. Application to forests can restore pools phosphorus (P) other nutrients, whic...

Phosphate (P) rock is a finite natural resource, and its use for P fertilizer production has resulted in rapid depletion worldwide. In order to reduce the of resources, reducing input into agricultural systems necessary. The assessment legacy soil an option maintain crop yield with low input. Many models have been tested assess contribution uptake. However, these face common challenge as concep...

‘Tree-pasture’ silvopastoral systems have the potential to become transformative multifunctional landscapes that add both environmental and economic value pastoral farms. Nevertheless, no published study has found increased pasture production under mature trees in New Zealand hill country. This takes a novel approach research Zealand, investigates genus similar bio-physical attributes other glo...

This was assessed by determining NaHCO3–extractable inorganic and organic P in a range of temperate pasture Soil is commonly stored in an air-dried state for extended periods soils extracted immediately after air drying and followbefore chemical analysis. The effect of storage on P solubility was assessed ing air-dry storage for 3 yr at ambient laboratory temperaby determining NaHCO3–extractabl...