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THE USE OF MIXTURES OF GRANULAR DALAPON, BIRDSFOOT TREFOIL SEED AND FERTILIZER FOR ROUGHLAND PASTURE RENOVATION
Author(s) -
Winch J. E.,
Watkin E. M.,
Anderson G. W.,
Collins T. L.
Publication year - 1969
Publication title -
grass and forage science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 56
eISSN - 1365-2494
pISSN - 0142-5242
DOI - 10.1111/j.1365-2494.1969.tb01086.x
Subject(s) - trefoil , pasture , germination , fertilizer , agronomy , seedling , productivity , grazing , environmental science , biology , macroeconomics , economics
Trials were conducted to determine the feasibility of combining granular dalapon, P fertilizer and birdsfoot trefoil seed in mixtures for renovating natural grass pastures in Ontario. The aim was to develop a ‘once‐over’ method to facilitate the renovation of pastures characterized by rough topography, rock outcrops or surface boulders. Dalapon at 4 lb. a.i./ac (4.4 kg/ha) controlled the growth of Canada bluegrass ( Poa compressa L.) and did not affect the germination and seedling growth of trefoil when applied simultaneously with the seed. Up to 100 lb/ac (112 kg/ha) P 2 O 5 could be added to the mixture without detriment to trefoil establishment. The application of dalapon, P and seed in mixture by fixed‐wing aircraft, helicopter or ground equipment gave five‐to ten‐fold increases in pasture productivity and proved to be a practical method of pasture renovation.