Fertirrigação em cacaueiros

Júnior, José Olímpio de Souza; Ramos, Adriana

doi:10.7476/9786586213188.0015

Cited by 1 publication

(2 citation statements)

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“…In contrast, the concentrations of Al and micronutrients decreased after liming and fertilization. After liming, pH reached a value of 5.88; also, base saturation levels were more than 60%, and aluminum saturation was low, values considered adequate for cacao production [28,29].…”

Section: Soil Physical and Chemical Attributes Before And After Limingmentioning

confidence: 99%

“…Overall, cacao plants in limed treatment performed better for biometric and physiological characteristics. In general, in comparison to other tropical crops, cacao responds well to fertilization [28]. Literature in cacao research has been mostly focused on aluminum toxicity rather than H + rhizotoxicity, and information is scarce on that subject.…”

Section: Responses Of Cacao Plants Under Acid Soilsmentioning

confidence: 99%

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Growth and Nutritional Responses of Juvenile Wild and Domesticated Cacao Genotypes to Soil Acidity

Arévalo-Hernández

Arévalo‐Gardini

Farfán³

et al. 2022

Agronomy

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Cacao is an important tropical crop and requires high-fertility soils for better growth and productivity; nevertheless, soils where this crop is grown are, in general, acidic and low in fertility. Therefore, germplasm with tolerance to soil acidity is desirable for cacao genetic improvement. The objective of this study was to evaluate cacao germplasm for early growth, nutrient concentration, and potential tolerance to soil acidity. A greenhouse experiment was conducted to evaluate 60 cacao genotypes with diverse geographic origins. Cacao seedlings were grown for six months in acid soil with and without lime. Growth parameters and the total concentration of N, P, K, Ca, Mg, Fe, Cu, Mn, and Zn were measured in shoots after harvest. Our results indicate that the best early growth predictors of acid soil tolerance are the number of leaves and root area. N, Ca, Mg, and K uptake may have a potential role in tolerance to soil acidity. Finally, the results revealed a large difference among cacao genotypes in terms of their responses to acid soil stress, which led to the selection of ten genotypes: CCN-51, PH-21, CCN-10, PAS-91, ICT-1087, ICS-95, UF-667, TSH-565, PH-144, ICT-1189 that are potentially tolerant to soil acidity and could be used for breeding acid soil-tolerant cacao varieties.

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Section: Soil Physical and Chemical Attributes Before And After Limingmentioning

confidence: 99%

Section: Responses Of Cacao Plants Under Acid Soilsmentioning

confidence: 99%