id	domain	url
agsci-530	doi.org	https://doi.org/10.30560/as.v2n1p109
agsci-530	doi.org	https://doi.org/10.1016/s0038-0717(99)00051-6
agsci-530	doi.org	https://doi.org/10.2136/sssaspecpub35.c7
agsci-530	doi.org	https://doi.org/10.2136/sssaspecpub35.c1
agsci-530	doi.org	https://doi.org/10.1007/s10311-013-0419-1
agsci-530	doi.org	https://doi.org/10.2136/sssaj1983.03615995004700050021x
agsci-530	doi.org	https://doi.org/10.4141/s98-004
agsci-530	doi.org	https://doi.org/10.4141/s03-045
agsci-530	doi.org	https://doi.org/10.1016/0038-0717(69)90012-1
agsci-530	doi.org	https://doi.org/10.1016/s0038-0717(01)00199-7
agsci-530	creativecommons.org	http://creativecommons.org/licenses/by/4.0/)