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pro vyhledávání: '"Hilary J. Sampson"'
Autor:
S. A. Weinbaum, Hilary J. Sampson
Publikováno v:
HortScience. 29:492e-492
Extractable soil N may be leached below the plant rooting zone. and into the ground water. Orchards devoid of actively growing winter cover crops are subject to the greatest risk of NO3- leaching during tree dormancy in California. We examined the pa
Publikováno v:
American Journal of Alternative Agriculture; 1991, Vol. 6 Issue 2, p50-62, 13p