Zobrazeno 1 - 10
of 21
pro vyhledávání: '"L. E. Sommers"'
Autor:
L. E. Sommers, A.L. Suttona
Publikováno v:
The Role of Phosphorus in Agriculture
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6484fdb31ffa45d4a18f8375a81d704a
https://doi.org/10.2134/1980.roleofphosphorus.c19
https://doi.org/10.2134/1980.roleofphosphorus.c19
Autor:
W. L. Lindsay, L. E. Sommers
Publikováno v:
Soil Science Society of America Journal. 43:39-47
Autor:
L. E. Sommers, G. L. Mullins
Publikováno v:
Journal of Environmental Quality. 15:382-387
Publikováno v:
Soil Science Society of America Journal. 43:494-499
Autor:
L. E. Sommers, G. L. Mullins
Publikováno v:
Plant and Soil. 96:153-164
Cadmium and zinc uptake parameters were determined for intact corn (Zea mays L.) seedlings grown for 15 and 22 in nutrient solutions containing levels of Cd and Zn that were similar to those found in soil solutions. Uptake of both elements was assume
Publikováno v:
Journal of Environmental Quality. 8:342-347
Publikováno v:
Soil Science Society of America Journal. 45:506-513
The objectives of this study were to determine the effects of soil pH, soil moisture tension, sludge application rate, incubation temperature, and nitrification inhibitor on N transformations in soils amended with an N-labeled sewage sludge. Less tha
Autor:
D. W. Nelson, L. E. Sommers
Publikováno v:
Journal of Environmental Quality. 4:465-468
A simple, precise, and rapid method for estimating total N (to include nitrate and nitrite) in natural water is given. The proposed method involves evaporation of the water sample, pretreatment of the evaporated sample with reduced iron and H₂SO₄
Publikováno v:
Plant and Soil. 96:377-391
Two computer programs based on simultaneous chemical equilibria were compared for calculation of chemical species in xylem exudates. The first program, CHELATE, was developed to calculate the chemical species in xylem exudates while GEOCHEM was devel