FERTILIZER STUDIES WITH WHEAT, OATS AND BARLEY GROWN ON GREY WOODED AND BLACK SOILS IN THE PEACE RIVER REGION OF NORTHWESTERN CANADA
[摘要] Ineachof5consecutiveyears,1951–55,12fertilizertreatmentsweremadetowheat,oatsandbarleygrownonfallowedlandandonbinderstubblelandcroppedtocerealsthepreviousyear.ThetestswerelocatedonthreeGreyWoodedsoilsandoneBlacksoil.Fertilizerresponseofallthreecerealswasgreateronfallowthanonstubble.Phosphategavemuchhigheryieldincreasesthannitrogenonfallow.PhosphateandnitrogengaveaboutequalincreasesonstubblefortheGreyWoodedsoilsbutphosphategaveagreaterincreaseontheBlacksoil.DifferencesinyieldresponsefromnitrogenalsooccurredamongsttheGreyWoodedsoils.Afewresponseswereobtainedtopotash.
[发布日期] [发布机构]
[效力级别] [学科分类] 农业科学（综合）
[关键词] [时效性]
