H. Helal

发表

Influence of plant roots on C and P metabolism in soil

D. Sauerbeck, H. Helal, 1984, Plant and Soil.

Nitrogen metabolism of young barley plants as affected by NaCl-salinity and potassium

K. Mengel, H. Helal, 1979, Plant and Soil.

Short Term Determination of the Actual Respiration Rate of Intact Plant Roots

D. Sauerbeck, H. Helal, 1991 .

Method to study turnover processes in soil layers of different proximity to roots

D. Sauerbeck, H. Helal, 1983 .

Salinity‐heavy metal interactions as evaluated by soil extraction and plant analysis

E. Schnug, A. Ramadan, S. A. Haque, 1996 .

Evaluation of root mortality by biochemical analysis

E. Schnug, M. A. Monem, H. Helal, 1996 .

Effect of plant roots on carbon metabolism of soil microbial biomass

D. Sauerbeck, H. M. Helal, H. Helal, 1986 .

Soil and Root Phosphatase Activity and the Utilization of Inositol Phosphates as Dependent on Phosphorus Supply

D. Sauerbeck, H. M. Helal, H. Helal, 1991 .

The uptake of trace elements by spinach and bean varieties of different root parameters

H. Arisha, H. Helal, E. Rietz, 1990, Plant and Soil.

Factors affecting the nutrient efficiency of plants

D. Sauerbeck, H. Helal, 1990 .

Mobilization and turnover of soil phosphorus in the rhizosphere

H. M. Helal, A. Dressler, H. Helal, 1989 .

Varietal differences in root phosphatase activity as related to the utilization of organic phosphates

H. M. Helal, H. Helal, 1990, Plant and Soil.

Interaction between Light Intensity and NaCl Salinity and Their Effects on Growth, CO(2) Assimilation, and Photosynthate Conversion in Young Broad Beans.

K. Mengel, H. Helal, 1981, Plant physiology.

Carbon Turnover in the Rhizosphere

D. Sauerbeck, H. M. Helal, H. Helal, 1989 .

Heavy metal uptake by Lolium italicum and root mortality as affected by salt water irrigation

F. Azam, A. Ramadan, H. Helal, 1997 .

Growth and uptake of Cd and Zn by Leucaena leucocephala in reclaimed soils as affected by NaCl salinity

H. Helal, Aibek Upenov, G. J. Issa, 1999 .