Effect of Nutrient Type on Chemical Composition and Dry Matter Partitioning of Cassava (Manihot esculenta Crantz) |
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作者姓名: | V. D. Taffouo E. Tsoata M. Kenne R. J. Priso T. Fonkou A. Akoa |
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作者单位: | [1]Department of Botany, Faculty of Science, University of Douala, Douala 24157, Cameroon [2]Department of Botany, Faculty of Science, University of Yaounde I, Yaounde 812, Cameroon [3]Department of Biology and Animal Physiology, Faculty of Science, University of Douala, Douala 24157, Cameroon [4]Department of Botany, Faculty of Science, University of Dschang, Cameroon |
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基金项目: | Acknowledgments These investigations were supported by the International Foundation of Science (IFS), Stockholm, Sweden and Swedish International Development Cooperation Agency, Department for Natural Resources and the Environment (SIDA NATUR), Stockholm, Sweden through a grant to Dr. Victor Desire Taffouo. |
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摘 要: | The objective of our study was to determine the effects of four types of fertilisers enrichments (manure potassic (K), phosphatic (P), phosphatic and potassic (PK) and nitrogenized, phosphated and potassic (NPK)) on chemical composition and dry matter in cassava (Manihot esculenta) organs (clone 1171) during harvest period. The pots experiment was laid out in randomised complete bloc design with five treatments and four replications. Water, nitrogen, potassium, phosphorus, sodium, total proteins and total lipids contents of the leaves, shoots and tubers were determined. After 9 months growing period, results showed that fertilizer types enriched with K, PK and NPK significantly increased the organic compounds contents of the leaves (P〈0.05). Furthermore, fertilizers with high phosphorus content significantly increased the lipid contents of the leaves (25%). Fertilizers enriched with NPK positively influenced the biomass partitioning in Manihot esculenta. Application of fertilizers enriched with NPK led to higher levels of total proteins in the leaves and tubers (70 mg g DM^-1 and 30 mg g DM^-1 respectively) compared to control (17 mg g DM^-1 and 9 mg g DM^-1 respectively). These results help to demonstrate the value of these fertilizers enrichment to improve the chemical composition and dry matter partitioning of cassava.
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关 键 词: | 干物质分配 化学成分 营养类型 羊肚菌 木薯 氮磷钾化肥 分区 肥料种类 |
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