Influence of the relationship among nutrients on yield of cocoa (Theobroma cacao L.) clones
Relations among nutrients affect the plant nutrition, promoting growth and yield of crops. There-fore, this study aimed to determine the influence of the relationships among foliar nutrients on the yield of four clones of fine cocoa (Theobroma cacao L.) two clones self-incompatible, TSH-565-ICS-39, and two self-compatible, CCN-51-ICS-95. Different doses of fertilization was applied to determine which of this ratio nutrients more affect the yield, for that, was used a randomized complete block design with five treatments (TC (control), T1, T2, T3, T4 were successive incre-ments of NPK respectively 25%, 50%, 75% and 100% of the TC) and four replications was used. Results show differences a level leaf in nutrient concentration under the influence of clone, treatment and interaction clone*treatment; the effect clone in P, Mg2+, B, Mn2+ and Zn2+; the effect treatment in all nutrients and effect interaction clone*treatment in N, P, Mg2+, B, Fe2+, Mn2+ and Zn2+; this indicates that the applied fertilizer levels influencing the availability and absorption of nutrients. Overall all clones have affinity for Mg2+, S2+, P; in different order of pref-erence for N, K+, Ca2+ and the minor elements for Mn2+, Fe2+, Zn2+, Na+, B and Cu2+, except TSH-565. From the sixty six relationship among nutrients studied at the foliar level, it was found that the relationships are associated with more performance are: N/Mg, N/P, N/S, N/K, the first two are positive and the remainder negative yield.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | eng |
| Published: |
Universidad Nacional de Colombia - Sede Palmira
2016
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| Online Access: | https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/47387 |
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