Phosphorus Nutrition of Soybeans

Phosphorus Nutrition of Ruminants

Most Australian soils are derived from parent material which is low in phosphorus. Soils of low phosphorus status support early maturing, grass dominant pastures with a short summer growth period and hence lengthy period of senescence. Phosphorus in these grasses may be as low as 0.02 g P/100 g OM during senescence (Robinson and Sageman 1967) and may only reach 0.15 g.P/lOO g OM during active g...

Measurement of inorganic phosphorus in soybeans with near-infrared spectroscopy.

This study explored the feasibility of near-infrared (NIR) quantitative and qualitative models for soybean inorganic phosphorus (Pi), which is complementary to phytic acid, a component of nutritional and environmental importance. Spectra, consisting of diffuse reflectance (1100-2500 nm) of ground meal and single-bean transmittance (600-1900 nm) of whole seed, were collected on 191 recombinant i...

Phosphorus in Pig Nutrition

In order to reduce P excreted by pigs, P dietary supply should be better adjusted to the requirements and strategies to improve P availability should be implemented. The use of a feeding system relying on P apparent digestibility is recommended. This allows the reduction of safety margins when formulating pig diets, resulting in a decrease in P excretion. Low digestibility of P in feed ingredie...

Phosphorus nutrition of mycorrhizal trees.

Globally, phosphorus (P) limits productivity of trees in many forests and plantations especially in highly weathered, acidic or calcareous profiles. Most trees form mycorrhizal associations which are prevalent in the organic and mineral soil horizons. This review critically examines mechanisms that enhance the acquisition of P by tree roots. Mycorrhizal roots have a greater capacity to take up ...

Processing soybeans into foods: selected aspects of nutrition and flavor.