Terrestrial biosphere-atmosphere carbon dioxide (CO(2)) exchange is dominated by tropical forests, where photosynthetic carbon (C) uptake is thought to be phosphorus (P)-limited. In P-poor tropical forests, P may also limit organic matter decomposition and soil C losses. We conducted a field-fertilization experiment to show that P fertilization stimulates soil respiration in a lowland tropical ...

plant growth promoting rhizobacteria (pgpr) has been identified as an alternative to chemical fertilizer to increase soil fertility and crop production in sustainable agriculture. the objective of this study was to investigate the effects of single and co-inoculation of azospirillum and pseudomonas strains on plant growth and nutrient uptake of maize as a factorial experiment. treatments includ...

9 S. J. Barnett, Physic. Rev., 25, 835, 1925. 10 This can, for instance, be seen from Darwin's Lagrangian and Hamiltonian functions for atoms in magnetic fields, Phil. Mag., 39, 537, 1920. 11 P. Tartakowsky, Zeits. f. Physik, 34, 216, 1925. 12 P. Debye, Physic. Rev., 25, 586A, 1925. 13 A. Pascal, numerous references listed in Jahr. d. Rad. and Elektr., 17, 184, 1920. 14 The value e = 1.0000693 ...

Water scarcity and salinity are important limitations for saffron (Crocus sativus L.) production in arid and semi-arid regions. The purpose of this research was to study the interaction effects of water salinity and deficit irrigation on the macroscopic water extraction model for saffron. The effect of salinity and water stress on root-water uptake coefficient was determined by additive and mul...

2 For a detailed account of the methods reference may be made to C. Ramsauer, Ann. Physik., 72, p. 345, 1923, and Jahrb. Radioaktivitdt, 19, p. 345, 1923; R. B. Brode, Physic. Rev., 25, p. 636, 1925, and Proc. of the Royal Soc., 109, p. 397, 1925. 3 F. Zwicky, Physik. Zeitschr., 24, p. 171, 1923. 4E. C. Stoner, Phil. Mag., 48, p. 719, 1924. 5 F. Hund, Zs. Physik, 13, p. 241, 1923; G. Wentzel, I...

Two experiments were conducted to assess nutrient partitioning in coffee (Coffea arabica cv. Typica land race Guatemala) infected with Meloidogyne konaensis. Nutrient levels were quantified from soil, roots, and leaves. In the first experiment, 500-cm3 aliquants of a Kealakekua Andisol were infested with four initial population densities of M. konaensis ranging from 0 to 1,500 freshly hatched s...

Use of phosphate-solubilizing bacteria (PSB) as inoculants has concurrently increased phosphorous uptake in plants and improved yields in several crop species. The ability of PSB to improve growth of aerobic rice (Oryza sativa L.) through enhanced phosphorus (P) uptake from Christmas island rock phosphate (RP) was studied in glasshouse experiments. Two isolated PSB strains; Bacillus spp. PSB9 a...