Name: JOÃO VÍTOR GARCIA SILVA
Publication date: 17/09/2021
Advisor:
Name |
Role |
|---|---|
| EDNEY LEANDRO DA VITÓRIA | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| ADRIANO ALVES FERNANDES | Co advisor * |
| EDNEY LEANDRO DA VITÓRIA | Advisor * |
| VERÔNICA D'ADDAZIO PINHEIRO | External Examiner * |
Summary: SILVA, João Vítor Garcia; M.Sc.; Federal University of Espirito Santo; September 2021; FERTILIZED WITH NPK FOR THE DEVELOPMENT OF SEEDLINGS OF Allagoptera arenaria (Gomes) O. Kuntze; Advisor: Edney Leandro da Vitória, Co-advisors: Adriano Alves Fernandes and Antelmo Ralph Falqueto.
The Atlantic Forest species have ecological functions and can help in the management of the recovery of degraded areas. These areas, generally, are characterized by being compacted, low fertility in the initial horizons that hinder or inhibit the development of some species. In order to assist degraded areas recovery projects, studies are needed that can provide the information necessary for the project's success. In this context, two experiments were developed. The first experiment was performed with a native species considered a facilitator, Allagoptera arenaria (Gomes) O. Kuntze, in order to evaluate the initial growth and quality of seedlings of the species as a function of different doses of NPK 20-00 -20 in coverage. The best seedlings were obtained when the greatest development of the root system was achieved, at the fertilization rate of 21.55 g dm³ of NPK. This dose provided relative absorption efficiencies of 93.81% for N and 93.56% for K. The second experiment was performed with non-pioneer species Inga laurina and Psidium cattleyanum. The hypothesis is that NPK nutrients support the photosynthetic parameters of plants, attenuating intense light photoinhibition in tropical species. The two species differed from each other in response to light. NPK fertilization attenuated the effects of photoinhibition.
