Banca de DEFESA: FABIANA FONTES DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : FABIANA FONTES DA SILVA
DATE: 15/09/2021
TIME: 09:00
LOCAL: Campus Arapiraca
TITLE:

NUTRITIONAL CHARACTERISTICS AND FORAGE PALM BIOMASS ACCUMULATION (Nopalea cochenilifera (L.) Salm-Dyck) INFLUENCED BY STYLOSANTHES AND ORGANIC FERTILIZATION.

KEY WORDS:

Small palm, Chemical-bromatological composition, Crassulacean acid metabolism – CAM

PAGES: 89
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Ciência do Solo
SPECIALTY: Manejo e Conservação do Solo
SUMMARY:

The forage cactus (Nopalea cochenillifera (L.) Salm – Dick) has morphophysiological characteristics that allow its development in conditions of low water supply, and has played an important role in livestock in the Semi-arid region, forming the basis of ruminant feeding. The production of forage cactus in the Northeast of Brazil presents low productivity mainly due to inadequate management, lack of correction of nutritional levels and low levels of organic matter in the soil. The use of Stylosanthes species as green manure can favor the production system of forage cactus, working as an alternative source of nutrients, especially nitrogen, to inorganic fertilizers. The contribution of plant residues to the soil favors the increase in organic matter content, nutrient cycling, microorganism activity, structuring, infiltration and storage of water in the soil, improving the quality and resilience of agroecosystems. This work aimed to evaluate the nutritional composition and biomass accumulation of forage cactus cultivated in the residue of stylosanthes cv. Campo Grande as green manure and organic manure using cattle manure. The experiment was carried out in the experimental area of the Federal University of Alagoas - UFAL, Campus Arapiraca, in randomized blocks, with four replications, in a 3x2 factorial scheme. The first factor studied corresponded to fertilization: a) green fertilization with stylosanthes cv. Campo Grande associated with chemical phosphate fertilization, b) organic fertilization with cattle manure associated with chemical phosphate fertilization, and c) control with chemical phosphate fertilization without green and organic fertilization. The second factor studied was spacing: 1.20 x 0.20 and 1.20 x 0.25, with plant density per area of 41,000 and 33,000 plants per hectare, respectively. Biometric variables were evaluated: plant height (AP), plant width (LP) and number of cladodes emitted per plant (NC), starting at 180 days after planting (DAP), with an interval of 60 days between measurements; chemical-bromatological and mineral composition; chlorophyll and carotenoid contents in two distinct periods; and production of green and dry biomass in 12 months. To perform the statistical analysis, the SISVAR software, version 5.6 was used. The variables studied show significant differences in relation to treatments with green and organic fertilizers, and significant biomass production with organic fertilizer and 1.20 x 0.20 spacing in relation to the other treatments

BANKING MEMBERS:
Presidente - 1543863 - CICERO GOMES DOS SANTOS
Interno - 1544058 - MARCIO AURELIO LINS DOS SANTOS
Interno - 2626313 - VALDEVAN ROSENDO DOS SANTOS
Externo ao Programa - 2150633 - KEDES PAULO PEREIRA
Externa à Instituição - CAROLINA CORRÊA DE FIGUEIREDO MONTEIRO - UNEAL