Monthly yields and composition of herbage composed of Kentucky bluegrass, Poa pratensis L., and white clover, Trifolium repens L., as affected by fertilizer treatments

Swift, R.W.; James, W.H.; Marcy, L.F.; Elliott, R.F.; Smith, V.F.; Higbee, H.W.

Monthly yields and composition of herbage composed of Kentucky bluegrass, Poa pratensis L., and white clover, Trifolium repens L., as affected by fertilizer treatments

1948

Involving five fertilizer treatments, frequent clippings of Kentucky bluegrass, Poa pratensis L., mixed with white clover, Trifolium repens L., from 25 experimental plots throughout a period of 7 months were quantitatively collected and analyzed. In addition to complete feed analysis, calcium, phosphorus, magnesium, and potassium were determined. Increases in total protein, energy, and dry matter were evident in accord with the fertilizer treatment. It was found that high yield was associated with high quality (feeding value) except that the potassium tended to replace calcium and magnesium. A midseason application of nitrogen (ammonium nitrate) exerted a definite, favorable effect to increase the nutritive value of the harvested forage. The crude fiber content did not vary appreciably in any of the fertilizer treatments over a period of 5 months.

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