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New approaches to phosphorus fertilization


, : New approaches to phosphorus fertilization. Phosphorus requirements for sustainable agriculture in Asia and Oceania Proceedings of a symposium, 6-10 March 1989: 125-142

The agronomic value of phosphate rock depends not only on the chemistry of the rock but also on soil pH, rhizosphere pH, and the pattern of P demands of the cropping schedule. The co-granulation of phosphate rock with elemental S or ammonium fertilizer, composting it with organic wastes, and partial acidulation can all increase agronomic value.

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Uehara, Y.; Shimizu, H.; Shimomura, Y.; Negishi, M.; Kobayashi, I.; Kobayashi, S., 1990: Effects of recombinant human interleukins on food intake of previously food-deprived rats. The effects of intracerebroventricular injection of recombinant human interleukin 1 beta (rhIL-1 beta), 1 alpha (rhIL-1 alpha), and 2 (rhIL-2) on feeding behavior were examined in previously food-deprived rats for 18 hr. At doses of 2-17 ng/rat, r...

Sánchez, L.J.; Bencini, L.; Calistri, M.; Moretti, R., 2003: Experience with and results of the laparoscopic treatment of laparocele. The purpose of this study was to describe our experience from December 1999 to March 2003 with a series of 76 cases of laparocele, 56 of which (74%) were incisional and 26 (26%) primitive. The case series shows a prevalence of the female sex (2/1)...

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Wazny, J.; Wytwer, T., 1963: Investigation on resistance of the Reed (P. communis) to wood-destroying fungi. Coniophora cerebella, Merulius lacrymans, and PorIa vaporaria were more destructive than Lenzites saepiaria, Lentinus lepideus, and Paxillus acheruntius. Resistance decreased with distance from the lake bank. Butt ends and the portions near the no...

Ioannou, A.; Dimirkou, A.; Theodoropoulou, E., 1996: Phosphate sorption by hematite and kaolinite-hematite (k-h) system as described by isotherms. The sorption of phosphate (P) by synthetic hematite and kaolinite-hematite (k-h) system was investigated under conditions of varying pH (4.0, 5.0, 6.0, 7.0, 8.0, and 9.0) and equilibrating solution composition. Sorption experiments were carried ou...