Sustainability of agricultural systems is at stake, as phosphorus (P) a non-renewable resource while its global reserves are limited. Stimulating earthworm activity can be technology to increase the level readily plant-available phosphate (PO4). However, conclusive evidence on mechanisms underlying an earthworm-enhanced PO4 solubility yet missing. This study aimed reveal possibly overlooked pat...

The rate of synthesis of the endoplasmic reticulum in barley aleurone cells after treatment with gibberellic acid was determined by measurement of [(14)C]-choline incorporation into acid-insoluble material in a semipurified fraction containing the endoplasmic reticulum. 94% of the (14)C incorporated into this fraction is extractable by lipid solvents and only 9% is removed by procedures for nuc...

introduction: increases in pollution of water resources due to the contaminants have made researchers to develop the various methods in the remediation and the reuses of polluted resources contamination of soils with heavy metals is one of great environmental concerns for the human beings. cadmium (cd) as a toxic heavy metal is of significant environmental and occupational concern. contaminatio...

In the Brigalow Belt bioregion of Australia, clearing brigalow (Acacia harpophylla) scrub vegetation for agriculture has altered nutrient cycling over millions hectares. order to quantify effect this and land use change on soil fertility, Catchment Study commenced in 1965. Initial burning resulted a temporary increase mineral nitrogen, total available phosphorus, exchangeable potassium sulfur s...

Purpose. Attapulgite was modified by sodium dihydrogen phosphate, oxalic acid-activated phosphate rock powder, potassium calcium superphosphate, ammonium and fused calcium-magnesium used in the remediation of Cd, Zn, Ni. Materials Methods. six kinds (ratio: 1 : 2), improvement effect passivation material on soil polluted cadmium, zinc, nickel determined. CaCl2-extractable toxicity characteristi...

The lipids of Bacteroides melaninogenicus were readily extractable with chloroform-methanol. Three per cent of the fatty acids were not extractable. The neutral lipids contained 4% of the extractable fatty acids, the stench characteristic of these organisms, and 0.5 mumole of vitamin K(2) isoprenologues K(2)-35, K(2)-40, and K(2)-45 per g (dry weight). This is one-fifth to one-tenth of the vita...

Concerns over the possible increase in phytoavailability of biosolids-applied trace metals to plants have been raised based on the assumption that decomposition of applied organic matter would increase phytoavailability. The objectives of this study were to assess the effect of time on chemical extractability and concentration of Cd, Cu, Ni, and Zn in plants on plots established by a single app...

Collagen was extracted from Achilles tendons of copperdeficient and control chicks by successive treatment with 0.15 M NaCI, 1.0 M NaCl, and 0.5 M acetic acid. The fractions extractable by 1.0 M NaCl and 0.5 M acetic acid were purified and characterized by ultracentrifugation and gel electrophoresis. They were then fractionated on carboxymethyl cellulose columns into their CQ, o12, &, and filz ...