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of 165
pro vyhledávání: '"James F. Parr"'
Produce more abundant, high-quality crops with the information you'll find in this book!Recent concerns over environmental pollution and food quality degradation caused by the excessive use of chemicals have prompted scientists and policymakers to re
Autor:
R. I. Papendick, James F. Parr
Publikováno v:
Agricultural Anhydrous Ammonia Technology and Use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec6e66557af88e2d9ce270fae7ed148a
https://doi.org/10.2134/1966.nh3agricultural.c12
https://doi.org/10.2134/1966.nh3agricultural.c12
Publikováno v:
American Journal of Alternative Agriculture. 10:133-137
Nitrogen, a vitally important plant nutrient, is subject to various losses that affect its efficiency. We tested prilled urea (PU), urea supergranules (USG), green manures (GM) and farmyard manure (FYM) in a rice-wheat cropping system to determine wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1ff9b0a3da20388aa64761f202969a2
https://doi.org/10.1017/s0889189300006317
https://doi.org/10.1017/s0889189300006317
Autor:
James F. Parr, Sharon B. Hornick
Publikováno v:
American Journal of Alternative Agriculture. 7:181-189
Agricultural research conducted in the United States since establishment of the U.S. Dept. of Agriculture and Land-Grant University System in 1862 has shown that regular and proper additions of organic materials are very important for maintaining the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaa0f8cf38d212a5b23c1d9d727d421b
https://doi.org/10.1017/s0889189300004781
https://doi.org/10.1017/s0889189300004781
Publikováno v:
American Journal of Alternative Agriculture. 7:5-11
Different chemical, physical, and biological properties of a soil interact in complex ways that determine its potential fitness or capacity to produce healthy and nutritious crops. The integration of these properties andine resulting level of product
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28eafc3c5d360953d62f3bb1af14facc
https://doi.org/10.1017/s0889189300004367
https://doi.org/10.1017/s0889189300004367
Autor:
Wirth, Stephan
Publikováno v:
Journal of Environmental Quality; Sep2001, Vol. 30 Issue 5, p1857-1857, 1p
Autor:
James F. Parr
Publikováno v:
American Journal of Alternative Agriculture. 18:171-172
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f8f18806169e57797c0aa6b22da3fdc
https://doi.org/10.1079/ajaa200346
https://doi.org/10.1079/ajaa200346
Publikováno v:
Journal of Crop Production. 3:xxv-xxvi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b92742efba3d569af5a0ad74b396bc9c
https://doi.org/10.1300/j144v03n01_a
https://doi.org/10.1300/j144v03n01_a
Autor:
James F. Parr, R. I. Papendick
Publikováno v:
American Journal of Alternative Agriculture. 12:98-99
Six papers in this issue were presented by Middle Eastern authors at the U.S.-Middle East Conference and Workshop on "Dryland Farming Systems and Technologies for a More Sustainable Agriculture," held at Moscow, Idaho on October 18–23, 1993.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d913f6eccfaa6eb7b2125f84199e1595
https://doi.org/10.1017/s0889189300007347
https://doi.org/10.1017/s0889189300007347
Autor:
R.I. Papendick, James F. Parr
Publikováno v:
American Journal of Alternative Agriculture. 11:50-51
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b93baccd5156be9325571b23d978d158
https://doi.org/10.1017/s0889189300006755
https://doi.org/10.1017/s0889189300006755