Zobrazeno 1 - 6
of 6
pro vyhledávání: '"L. L. Freeborn"'
Publikováno v:
Journal of Environmental Quality. 29:973-978
The loading, solubility, mobility, and plant availability of P is a growing environmental concern to regulators and planners of nutrient management plans, confined animal feeding operations, and wastewater land application permit sites. Insufficient
Publikováno v:
Soil Science Society of America Journal. 63:1717-1724
Irrigation-induced erosion and land leveling have decreased crop yields on - 800 000 ha of south-central Idaho silt loam soils because of topsoil removal. Phosphorus availability is a known production problem after topsoil removal. This study evaluat
Publikováno v:
Soil Science Society of America Journal. 61:1221-1225
Irrigation-induced erosion and land leveling have decreased crop yields on approximately 800 000 ha of south-central Idaho silt loam soils. Previous attempts to increase subsoil productivity to that of the topsoil have not been successful on these so
Publikováno v:
Soil Science. 152:294-303
Potential artifacts created by soil fractionation procedures are frequently ignored when studying the interaction of natural and synthetic organic compounds with clay-sized materials. Ultrasonic dispersion treatments of 0–7.66 kJ applied to soil in
Publikováno v:
Soil Science Society of America Journal. 55:288-291
Autor:
Matthew J. Morra, L. L. Freeborn
Publikováno v:
Soil Biology and Biochemistry. 22:361-366
Amino acid N accounts for ca 30–45% of the total soil N content and represents a potentially-available nutrient source for plant growth. Previous investigations have demonstrated that amino acid deamination in soil is catalyzed by pyridoxal-5'-phos