Refrences
- Adams , W. E. and Twersky , M. 1960 . Effect of soil fertility on winter killing of Coastal Bermudagrass . Agron. J. , 52 : 325 – 326 .
- Beard , J. B. and Rieke , P. E. 1966 . The influence of nitrogen, potassium, and cutting height on the low temperature survival of grasses , 35 Madision, WI : American Society of Agronomy . Agronomy Abstracts.
- Beard , J. B. 1973 . Turfgrass: Science and Culture , 416 – 418 . Englewood Cliffs, NJ : Prentice‐Hall, Inc. .
- Burton , G. W. and Jackson , G. E. 1960 . Single vs. split potassium applications for Coastal Bermudagrass . Agron. J. , 52 : 13 – 14 .
- Calder , F. W. and Macleod , L. D. 1966 . Effect of cold treatment on alfalfa as influenced by harvesting system and rate of potassiuin application . Can. J. Plant Sci. , 46 : 17 – 26 .
- Cordukes , W. E. , Wilner , J. and Rothwell , V. T. 1966 . The evaluation of cold and drought stress of turfgrass by electrolytic and ninhydrin methods . Can. J. Plant Sci. , 46 : 337 – 342 .
- Gilbert , W. B. and Davis , D. L. 1971 . Influence of fertility ratios on winter hardiness of bermudagrass . Agron. J. , 63 : 590 – 595 .
- Munson , R. D. 1972 . “ Interaction of potassium and other ions ” . In The Role of Potassium in Agriculture , Edited by: Kilmer , V. J. , Younts , S. E. and Brady , N. C. 321 – 354 . Madison, WI : American Society of Agronomy .
- Laughlin , W. M. 1965 . Effect of fall and spring application of four rates of potassium on yield and composition of timothy in Alaska . Agron. J. , 57 : 555 – 559 .
- Turgeon , A. J. 1985 . Turfgrass Management , 171 – 173 . Reston, Virginia : Heston Publication Co. .
- Waddington , D. V. , Moberg , E. L. and Duich , J. M. 1972 . Effect of N source, K source, and K rate on soil nutrient levels, growth, and elemental composition of ‘Penncross’ creeping bentgrass . Agron. J. , 64 : 562 – 566 .
- Waddington , D. V. , Turner , T. R. , Duich , J. M. and Moberg , E. L. 1978 . Effect of fertilization on ‘Pencross’ creeping bentgrass . Agron. J. , 70 : 713 – 718 .
- Walsh , L. M. and Beaton , J. D. , eds. 1977 . Soil Testing and Plant Analysis , 420 Madison, WI : Soil Science Sociery of America .
- Widdowson , F. V. , Penny , A. and Williams , R. J. B. 1965 . An experiment measuring effects of N, P, and K content of grass . J. Agr. Sc. , 64 : 93 – 99 .