Search Results

You are looking at 1 - 10 of 148 items for :

  • "sustainable agriculture" x
  • Refine by Access: All Content x
Clear All

Proceedings of the Seminar on Technologies for Sustainable Agriculture (Budapest, 10 Sept., 1984) 1985: Agrokémia és Talajtan. 34 , Suppl. 125-210. Agrokémia és Talajtan

Restricted access

Khan, M. S., Zaidi, A., Wani, P. A.: Role of phosphate solubilizing microorganisms in sustainable agriculture — A review. Agron Sustain Dev 27 , 29–43 (2007). Wani P. A. Role of

Restricted access

Production Overview. ATTRA. National Sustainable Agriculture Information Service. http://attra.ncat.org/attrapub/PDF/goatoverview.pdf Dobó E.— Fekete F. M.— Kumar S. M.— Szűcs I.: 2006. Ecological-economic analysis of

Restricted access

Current concerns about soil and water quality deterioration, limited possibility of fossil fuels, loss of biodiversity, and in general the viability of rural communities urge to work out methods of sustainable agriculture in the Nyírség region of Hungary. Sustainable agriculture seeks solutions for environmental, economic and agricultural problems at the same time. The aim is to develop new production methods which provide the protection of nature. In sustainable agricultural systems the management of organic matters and, more widely, the whole nutrient management are based on the total self-sufficiency of the farm. The entire cycle of organic matter production and decomposition takes place within the farm boundaries and makes the farm an actual biological system. The rate of metabolism and the organic matter cycle are characteristic features of each farm and define their activity for a long time. Present investigation conducted in Westsik's crop rotation experiment has found a highly significant correlation between organic nitrogen extracted by 0.01 M CaCl 2 solution and potato yield. It has shown that soil organic nitrogen extracted by 0.01 M CaCl 2 solution is a reliable indicator of nitrogen available for mineralization during the growing season. When precise nitrogen fertilizer recommendations are required, the method can supply additional information for environmentally friendly, sustainable agriculture.

Restricted access
Cereal Research Communications
Authors: Miklós Vásáry, Ivó Osztrogonácz, Erika Dobó, Róbert Buzás, and Viktória Vásáry
Restricted access

Abstract  

The concentration of 32 elements was determined in phosphate rock samples from the Hazara phosphate deposits of Pakistan using instrumental neutron activation analysis (INAA) technique employing different irradiation protocols. These included 23 major, minor and trace elements (Al, As, Ba, Br, Co, Cr, Cs, Fe, Ga, Hf, K, Mn, Na, Rb, Sb, Sc, Sn, Ta, Th, U, V, Zn and Zr) and 9 rare earth elements (REEs) namely Ce, Eu, Ho, La, Lu, Nd, Sm, Tb and Yb. The results have been compared with the global values of these elements. The concentrations for most of the elements studied are lower than the concentrations reported in the literature whereas the concentrations of As, Co, Fe, K, Mn, Na and Sb are comparable. Two samples namely HR-4 and HR-5 have the highest concentrations for majority of the REFs with high enrichment factors. The quality assurance of data was performed through the concurrent use of Lake Sediment (SL-1) and GSJ-JR-1 (Rhyolite) reference materials. The acquired data will serve as a reference for the follow-up studies to assess the agronomic effectiveness of the Hazara phosphate rocks.

Restricted access