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Your search keyword '"Kallenbach, R."' showing total 20 results
Start Over Author "Kallenbach, R." Publisher wiley
20 results on '"Kallenbach, R."'

1. 30 Years of Progress toward Increased Biomass Yield of Switchgrass and Big Bluestem

Author

Casler, M. D., primary, Vogel, K. P., additional, Lee, D. K., additional, Mitchell, R. B., additional, Adler, P. R., additional, Sulc, R. M., additional, Johnson, K. D., additional, Kallenbach, R. L., additional, Boe, A. R., additional, Mathison, R. D., additional, Cassida, K. A., additional, Min, D. H., additional, Crawford, J., additional, and Moore, K. J., additional

Published
2018
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20. Agroforestry buffers for nonpoint source pollution reductions from agricultural watersheds.

Author

Udawatta RP, Garrett HE, and Kallenbach R

Subjects
Fresh Water analysis, Geologic Sediments, Missouri, Nitrogen analysis, Phosphorus analysis, Poaceae, Rivers, Trees, Water Movements, Water Pollution analysis, Agriculture methods, Forestry methods, Water Pollution prevention & control
Abstract

Despite increased attention and demand for the adoption of agroforestry practices throughout the world, rigorous long-term scientific studies confirming environmental benefits from the use of agroforestry practices are limited. The objective was to examine nonpoint-source pollution (NPSP) reduction as influenced by agroforestry buffers in watersheds under grazing and row crop management. The grazing study consists of six watersheds in the Central Mississippi Valley wooded slopes and the row crop study site consists of three watersheds in a paired watershed design in Central Claypan areas. Runoff water samples were analyzed for sediment, total nitrogen (TN), and total phosphorus (TP) for the 2004 to 2008 period. Results indicate that agroforestry and grass buffers on grazed and row crop management sites significantly reduce runoff, sediment, TN, and TP losses to streams. Buffers in association with grazing and row crop management reduced runoff by 49 and 19%, respectively, during the study period as compared with respective control treatments. Average sediment loss for grazing and row crop management systems was 13.8 and 17.9 kg ha yr, respectively. On average, grass and agroforestry buffers reduced sediment, TN, and TP losses by 32, 42, and 46% compared with the control treatments. Buffers were more effective in the grazing management practice than row crop management practice. These differences could in part be attributed to the differences in soils, management, and landscape features. Results from this study strongly indicate that agroforestry and grass buffers can be designed to improve water quality while minimizing the amount of land taken out of production., (American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.)

Published
2011
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