Get Advances in Agronomy, Vol. 27 PDF

By N.C. Brady (Ed.)

ISBN-10: 0120007274

ISBN-13: 9780120007271

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Extra resources for Advances in Agronomy, Vol. 27

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Plant Physiol. 45, 612-615. Brevedan, E. , and Hodges, H. F. 1973. Plant Physiol. 52, 436-439. Brix, H. 1962. Physiol. Plant. 15, 10-20. Chang, T. , Loresto, G. , and Tagumpay, 0. 1974. Sabrao 1. 6, 9-16. Claassen, M. , and Shaw, R. H. 1970a. Agron. J . 62, 649-652. Claassen, M. , and Shaw, R. H. 1970b. Agron. 1. 62,652-655. Croy, L. , and Hageman, R. H. 1970. Crop Sci. 10,280-285. Deckard, E. , Lambert, R. , and Hageman, R. H. 1973. Crop Sci. 13, 343-350. Eastin, J. A. 1969. Proc. 24th Annu. Corn Sorghum Res.

Plant Physiol. 23, 437464. This Page Intentionally Left Blank BIOLOGICAL SIGNIFICANCE OF ENZYMES ACCUMULATED IN SOIL S. Kiss, M. Dr6gan-Bularda, and D. Rddulescu Babes-Bolyai University, Clui-Napoca, Romania Introduction. Role of Accumulated Soil Enzymes in the Initial Phases of the Decomposition of Organic Residues and of the Transformation of Some Mineral Compounds A. Carbon Cycle.. B. Nitrogen Cycle.. C. Phosphorus Cycle.................................................. D. Sulfur Cycle.. 111.

It is administered to young animals to increase their growth rate. DES is excreted with the feces and urine. Thus, the hormone reaches the soil either directly in pastures or through the use of stable manure. If DES is not rapidly decomposed in the soil, this may result in its uptake by plants, which can thus present a hazard to man and animals. For the study of the DES decomposition 'T-labeled DES was used in nonsterilized, y-radiation-sterilized, and autoclaved soil samples, and during the incubation (4 and 60 days) ' T O , was assayed.

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Advances in Agronomy, Vol. 27 by N.C. Brady (Ed.)

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