{"id":{"repo_id":"lincoln","oai_identifier":"oai:researcharchive.lincoln.ac.nz:10182/7819"},"canonical_url":"https://search.dev.ndltd.org/etd/lincoln/oai:researcharchive.lincoln.ac.nz:10182/7819","repository":{"repo_id":"lincoln","name":"Lincoln University","base_url":"http://researcharchive.lincoln.ac.nz/dspace-oai/request"},"display":{"title":"Copper deficiency in lucerne (Medicago sativa. L.)","abstract":"In the course of these studies more questions have been posed than answered. It is clear that Lucerne production is being limited by low Cu levels in some areas. The relationships between yield and plant composition were rather different from those predicted from other studies; it is considered that this indicated that the present understanding of these relationships is far from adequate. A survey of Cu content of Lucerne growing on Eyre, Lismore and Wakanui soils showed the first two to supply just enough Cu for healthy plant growth at most sites. Wakanui soils grew Lucerne with more than adequate Cu contents. Variation within stands was not great, bulk sampling should give adequate information about the Cu status of any particular stand. Variation due to season was not marked. It is concluded that herbage Cu levels on all soils surveyed were sufficiently low to cause concern about animal health and that it is reasonable to assume similar or lower Cu levels in the other “old” shallow soils of Canterbury.","abstract_html":"In the course of these studies more questions have been posed than answered. It is clear that Lucerne production is being limited by low Cu levels in some areas. The relationships between yield and plant composition were rather different from those predicted from other studies; it is considered that this indicated that the present understanding of these relationships is far from adequate. A survey of Cu content of Lucerne growing on Eyre, Lismore and Wakanui soils showed the first two to supply just enough Cu for healthy plant growth at most sites. Wakanui soils grew Lucerne with more than adequate Cu contents. Variation within stands was not great, bulk sampling should give adequate information about the Cu status of any particular stand. Variation due to season was not marked. It is concluded that herbage Cu levels on all soils surveyed were sufficiently low to cause concern about animal health and that it is reasonable to assume similar or lower Cu levels in the other “old” shallow soils of Canterbury.","abstract_has_math":false,"creators":["Carran, R. A."],"institution":"Lincoln College, University of Canterbury","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1972,"date_issued":"1972","date_published":"1972","updated_at":"2026-07-24T02:51:05Z","subjects":["copper","lucerne","Medicago sativa L.","soil nutrients","soil chemistry","Eyre soil","Lismore soil","Wakanui soil","yield","ANZSRC::050304 Soil Chemistry (excl. Carbon Sequestration Science)","ANZSRC::070306 Crop and Pasture Nutrition"],"languages":["en"],"rights":["Digital thesis can be viewed by current staff and students of Lincoln University only. 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Wakanui soils grew Lucerne with more than adequate Cu contents. Variation within stands was not great, bulk sampling should give adequate information about the Cu status of any particular stand. Variation due to season was not marked. It is concluded that herbage Cu levels on all soils surveyed were sufficiently low to cause concern about animal health and that it is reasonable to assume similar or lower Cu levels in the other “old” shallow soils of Canterbury."]},{"key":"dc:title","label":"Title","values":["Copper deficiency in lucerne (Medicago sativa. L.)"]}]}],"canonical_facts":{"dc:creator":["Carran, R. A."],"dc:date":["1972"],"dc:description":["In the course of these studies more questions have been posed than answered. It is clear that Lucerne production is being limited by low Cu levels in some areas. The relationships between yield and plant composition were rather different from those predicted from other studies; it is considered that this indicated that the present understanding of these relationships is far from adequate. A survey of Cu content of Lucerne growing on Eyre, Lismore and Wakanui soils showed the first two to supply just enough Cu for healthy plant growth at most sites. Wakanui soils grew Lucerne with more than adequate Cu contents. Variation within stands was not great, bulk sampling should give adequate information about the Cu status of any particular stand. Variation due to season was not marked. It is concluded that herbage Cu levels on all soils surveyed were sufficiently low to cause concern about animal health and that it is reasonable to assume similar or lower Cu levels in the other “old” shallow soils of Canterbury."],"dc:identifier":["https://hdl.handle.net/10182/7819","Q112837663"],"dc:language":["en"],"dc:publisher":["Lincoln College, University of Canterbury"],"dc:rights":["https://researcharchive.lincoln.ac.nz/pages/rights","Digital thesis can be viewed by current staff and students of Lincoln University only. If you are the author of this item, please contact us if you wish to discuss making the full text publicly available."],"dc:subject":["copper","lucerne","Medicago sativa L.","soil nutrients","soil chemistry","Eyre soil","Lismore soil","Wakanui soil","yield","ANZSRC::050304 Soil Chemistry (excl. Carbon Sequestration Science)","ANZSRC::070306 Crop and Pasture Nutrition"],"dc:title":["Copper deficiency in lucerne (Medicago sativa. 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