Abstract
The use of mineral fertilizers has shown substantial productivity gains for the vast majority of Eucalyptus forests. The objective of the present work is to evaluate the response of Eucalyptus benthamii and Eucalyptus dunnii at 48 months of age, to different doses of limestone, soluble NPK, and natural phosphates. The experiment was conducted in a plantation located in South Brazil. The experimental design was a randomized block with three replications, and the treatments consisted of combinations of doses of natural phosphate (NP) (0, 400, 600, and 800 kg ha−1 of Gafsa reactive NP P2O5), limestone (0, 3, 5, 6, and 10 Mg ha−1 of dolomitic limestone), and mineral fertilizer–NPK (0, 100, 133, and 167 kg ha−1 of mixed mineral fertilizer 6-30-6). Height and diameter measurements were taken after 48 months. There was a positive response with the increase of NPK fertilizer dose, and the dose where the highest averages were obtained was 167 kg ha−1. The doses of NP had significant effects on the increase of the variables up to 600 kg ha−1, also the averages decreased with the increase of the dosage. For liming, positive results were observed from its absence to the maximum dose, justifying its use in minimum dose in order to supply the necessary amounts of Ca and Mg in the soil. The use of NPK, natural phosphate, and limestone is recommended, causing an increase in the growth of both species of Eucalyptus studied.
Highlights
Diego Pereira da Rosa, Marcio Carlos Navroski, Mariane De Oliveira Pereira, Geedre Adriano Borsoi, Bruno Nascimento, Ramon Silveira De Andrade, and Carolina Moraes
E use of mineral fertilizers has shown substantial productivity gains for the vast majority of Eucalyptus forests. e objective of the present work is to evaluate the response of Eucalyptus benthamii and Eucalyptus dunnii at 48 months of age, to different doses of limestone, soluble NPK, and natural phosphates. e experiment was conducted in a plantation located in South Brazil. e experimental design was a randomized block with three replications, and the treatments consisted of combinations of doses of natural phosphate (NP) (0, 400, 600, and 800 kg ha−1 of Gafsa reactive NP P2O5), limestone (0, 3, 5, 6, and 10 Mg ha−1 of dolomitic limestone), and mineral fertilizer–NPK (0, 100, 133, and 167 kg ha−1 of mixed mineral fertilizer 6-30-6)
For E. benthamii, the highest average was observed for 167 kg ha−1, not differing from 133 kg ha−1 and being 13% higher in relation to the worst observed average, which was the control (Figure 1(a))
Summary
Diego Pereira da Rosa , Marcio Carlos Navroski , Mariane De Oliveira Pereira , Geedre Adriano Borsoi , Bruno Nascimento , Ramon Silveira De Andrade , and Carolina Moraes. E objective of the present work is to evaluate the response of Eucalyptus benthamii and Eucalyptus dunnii at 48 months of age, to different doses of limestone, soluble NPK, and natural phosphates. Ere was a positive response with the increase of NPK fertilizer dose, and the dose where the highest averages were obtained was 167 kg ha−1. E use of NPK, natural phosphate, and limestone is recommended, causing an increase in the growth of both species of Eucalyptus studied. A combination of several factors is required for the establishment of productive forests, such as site-adapted genetic materials, favorable soil and climate conditions, proper management, and high-quality seedlings [1]. Proper nutrition in Eucalyptus plantations is essential for the establishment of high-yielding forests [2]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
