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ADUBAÇÃO ORGÂNICA NA COVA DE PLANTIO DO CAFEEIRO CONILON (Coffea canephora Pierre ex Froehner): II. EFEITOS NOS TEORES FOLIARES DE NUTRIENTES
| Content Provider | Semantic Scholar |
|---|---|
| Author | Serrano, Luiz Augusto Lopes Silva, Luiz Augusto Lopes Formentini, Edegar Antônio Teixeira, Alex Fabian Rabelo |
| Copyright Year | 2009 |
| Abstract | Due to the international dependency of fertilizers and the its global demand increase, the high cost of fertilizers has been an obstacle for Brazilian farmers. The objective of this work was to evaluate the effects of two organic compounds used in the planting of Coffea canephora tree, in order to replace the nitrogen and potassium fertilizer recommended for the culture in the post-planting, on the nutritional status of plants. Five doses of two compounds were evaluated which were mixed to the volume of soil corresponding to a hole of planting coffee tree. The organic compound 1 (CO1) was composed by the mixture of cattle manure and Pennisetum purpureum (1:4), and the organic compound 2 (CO2) was composed by the mixture of poultry litter and Pennisetum purpureum (1:4). The doses of CO1 were 0 (D0), 4,265 (D1), 8,530 (D2), 12,795 (D3) and 17,060 (D4) grams per hole (64 liters). The doses of CO2 were 0 (D0), 3,792 (D1), 7,584 (D2), 11,376 (D3) and 15,168 (D4) grams per hole. After 120 days of planting, the plants were collected, and the N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn levels were quantified. The results showed that addition and amount of organic compounds interfered in foliar nutrient levels. The increase in doses of CO1 did not affect the foliar levels of P, Mg and S, while the increase in doses of CO2 did not affect the levels of K, Mg and S. Increasing doses of both compounds provided decrease in foliar levels of Ca, Cu and B. The doses of 9,160 g/hole of CO1 and 8,706 g/hole CO2 provided the greatest foliar levels of N. Plants of all treatments provided foliar content of K above the sufficiency range. Based on the results obtained in this work, it might be stated that the fertilization with organic compounds in the planting hole may be an alternative to replace or reduce the nitrogen and potassium fertilizer minerals recommended for the first year after planting the Coffea canephora trees. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://biblioteca.incaper.es.gov.br/digital/bitstream/item/66/1/Adubacao-organica-na-cova-de-plantio-do-cafeeiro-conilon-coffea-canephora-pierre-ex-froehner-ii-efeitos-nos-teores-foliares-de-nutrientes.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
