Publisher Summary Because of their controlled-release properties, phosphate rocks (PRs)
are ideally suited for long-term crops such as permanent pastures and plantation crops. In …

Field trials in New Zealand have shown that reactive phosphate rocks (RPRs) can be as
effective as soluble P fertilisers, per kg of P applied, on permanent pastures that have a soil …

The role of the agricultural scientist is to manipulate crop and livestock response
phenomena so that they serve society's needs better, enabling countries to obtain full benefit …

When a phosphorus (P) fertilizer is applied to soil, its distribution is initially heterogeneous.
The ultimate measure of the residual value of a fertilizer is its ability to help grow a desired …

Phosphorus (P) is an essential nutrient required for plant development. Continuous
population growth and rising global demand for food are expected to increase the demand …

This paper describes a journey which started with the question: why do farmers reapply
phosphate? This led to understanding how phosphate and other specifically sorbed ions …

Granite (silicate) rock dust, a by-product of quarry operations, is being advocated and used
as a fertilizer in the wheatbelt of south-western Australia (WA). The dust is insoluble and …

The effect of inoculation, with a VA mycorrhizal fungus on growth and phosphorus uptake of
subterranean clover was examined using three phosphorus sources with different …

Plants take up P from soil solution, so water-soluble P fertilizers are generally more effective
than poorly soluble forms. The original sources of P used for agriculture were poorly soluble …

The relative effectiveness of zinc chelate (Zn-EDTA, 15% Zn) and zinc sulfate (23% Zn)
applied as folk sprays for alleviating zinc deficiency of wheat was assessed. The …