FERTILIZER RESPONSE OF FESCUE GRASSLAND VEGETATION | Zendy

A. D. Smith | Zendy; A. Johnston | Zendy; L. E. Lutwick | Zendy; S. Smoliak | Zendy

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FERTILIZER RESPONSE OF FESCUE GRASSLAND VEGETATION

Author(s) -

A. D. Smith,

A. Johnston,

L. E. Lutwick,

S. Smoliak

Publication year - 1968

Publication title -

canadian journal of soil science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.592

H-Index - 67

eISSN - 1918-1841

pISSN - 0008-4271

DOI - 10.4141/cjss68-015

Subject(s) - fertilizer , grassland , rangeland , agronomy , grazing , vegetation (pathology) , human fertilization , yield (engineering) , environmental science , mathematics , zoology , biology , pathology , metallurgy , medicine , materials science

Fescue grassland vegetation at three locations in southwestern Alberta was fertilized with P, N, and N + P at various rates. Rates of application by an increasing-rate fertilizer spreader were from 0 to 1,120 kg N/ha and from 0 to 860 kg P/ha. Festuca scabrella Torr. responded to high rates of fertilizer whereas Danthonia parryi Scribn. did not respond. Yields were averaged across locations to show effects of fertilizers 1, 2, 3, and 4 years after application. Yield response curves showed that a residual effect persisted throughout the 4-year study period. Total yield was increased. Value of additional grazing compared with costs of purchase and application of fertilizer showed that fertilization of rangelands in the areas studied was not economically feasible.

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