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Resultados 181-190 de 329
Effect of composting and number of flocks on poultry litter extract bod and toxicity
1990
Gupta, G. (Maryland Eastern Shore Univ., Princess Anne, MD (USA)) | Doherty, M.
The effect of nitrogen and potassium availability on scleroderris canker of Scots pine seedlings
1990
Ylimartimo, A. (Helsinki Univ. (Finland). Dept. of Silviculture)
The influence of Mg fertilization on growth and mineral contents of fine roots in (Picea abies (Karst) L.) stands at different stages of decline in NE-Bavaria
1990
Schneider, B.U. (Bayreuth Univ. (Germany, F.R.). Inst. of Soil Science and Soil Geography) | Zech, W.
Foliar potassium status explains Douglas fir response to nitrogen fertilization in the Inland Northwest, USA
1990
Mika, P.G. (Idaho Univ., Moscow, ID (USA). Dept. of Forest Resources) | Moore, J.A.
Liming and fertilization of acid forest soil: short-term effects on runoff from small catchments
1990
Westling, O. (Swedish Environmental Research Inst., Lammhult (Sweden)) | Hultberg, H.
Anaerobic treatment of potato-processing wastewater by a UASBR-UAF system at low organic loadings
1990
Guo, J. (Tienjin Univ. (China). Dept. of Civil Engineering) | Lin, K.C.
Liming and wet acid deposition effects on tree growth and nutrition: experimental results
1990
Tveite, B. (Norwegian Forest Research Inst., Aas (Norway)) | Abrahamsen, G. | Stuanes, A.O.
Foliar symptoms on Norway spruce and relationships to magnesium deficiencies
1990
Ke, J. (Pennsylvania State Univ., University Park, PA (USA). Dept. of Plant Pathology) | Skelly, J.M.
Nutritional disturbances and declining Armand Pine in southwestern China
1990
Guangjing, M. (Chinese Academy of Forestry, Beijing (China). Research Inst. of Forestry)
A new fertilization strategy in declining forests
1990
Evers, F.H. (Forest Research Station of Baden-Wuerttemberg, Freiburg i. Br. (Germany, F.R.)) | Huettl, R.F.
