Data/hora: 02/06/2024 04:58:30

Biblioteca(s): 	Embrapa Semiárido.	
Tipo da produção científica: 	Artigo em Periódico Indexado	
Circulação/Nível: 	A - 1	
Data corrente: 	19/01/2024	
Data da última atualização: 	19/01/2024	
Autoria: 	ARAÚJO, C. de A.; ARAUJO, G. G. L. de; NOVAES, J. J. da S.; CAMPOS, F. S.; LIMA, D. O.; BORGES, E. N.; GOIS, G. C.; SILVA, C. de S.; SILVA, T. G. F. da; SÁ, J. M. de.	
Afiliação: 	CLEYTON DE ALMEIDA ARAÚJO, Univasf; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; JUDICAEL JANDERSON DA SILVA NOVAES, Univasf; FLEMING SENA CAMPOS, Federal Rural University of Pernambuco, Serra Talhada, PE; DENESON OLIVEIRA LIMA, Univasf; ELIZÂNGELA NUNES BORGES, Univasf; GLAYCIANE COSTA GOIS, Univasf; CRISLANE DE SOUZA SILVA, Univasf; THIERES GEORGE FREIRE DA SILVA, Federal Rural University of Pernambuco, Serra Talhada, PE; JOSÉ MANOEL DE SÁ, Univasf.	
Título: 	Influence of cactus pear cultivation density on the physicochemical characteristics of the soil.	
Ano de publicação: 	2023	
Fonte/Imprenta: 	Soil and Tillage Research, v. 232, 105771, Aug. 2023.	
DOI: 	https://doi.org/10.1016/j.still.2023.105771	
Idioma: 	Inglês	
Conteúdo: 	The objective was to evaluate the effect of the planting density of cactus pear cv. Mexican elephant ear under soil physical and chemical properties. Four planting densities were tested: 30,000, 45,000, 60,000 and 75,000 plants distributed in a randomised block design with four replications. After 360 days of cultivation, soil samples were taken in different profiles (0.0–0.10, 0.10–0.20, 0.20–0.30 and 0.30–0.40 m). The physical–chemical analysis included soil density, particle density, porosity, pH, electrical conductivity (EC), phosphorus (P), potassium (K+), sodium (Na+), calcium (Ca2+), magnesium (Mg2+), copper (Cu2+), iron (Fe2+), manganese (Mn2+), zinc (Zn2+), exchangeable acidity (H+Al), sums of bases (SB), cation exchange capacity and base saturation (V). The results were tested using analysis of variance, regression at 5% probability and principal component analysis (PCA). Physical properties along the soil profile and soil chemical properties in the 0–0.10 m profile were not altered (P > 0.05) by the density. There was a decreasing linear effect (P < 0.05) of density on the P content in the 0.10–0.20, 0.20–0.30 and 0.30–0.40 m profiles. Mg, Zn and V in the 0.10–0.20 m profile and Ca in the 0.30–0.40 m profile decreased linearly (P < 0.05) as a function of density. There was an increasing linear effect (P < 0.05) of planting density on Fe in the 0.20–0.30 m profile. The PCA showed that the factor loadings of the chemical properties of the soil in the different profiles were greater than 75% in the first two components. Except for the 0–0.10 m profile, with 55.77%. Minerals that contributed most to PC were Ca, K, P, Mg and Mn. In this sense, increasing the planting density of cactus pear without the use of fertiliser demands more from the soil, recommending lower densities between 30,000 and 45,000 plants ha−1.	
Palavras-Chave: 	Componente edáfica; Macronutrientes; Orelha de elefante mexicana.	
Thesagro: 	Cálcio; Palma Forrageira.	
Thesaurus Nal: 	Cactus pears; Calcium; Opuntia stricta.	
Categoria do assunto: 	L Ciência Animal e Produtos de Origem Animal	
Registro original: 	Embrapa Semiárido (CPATSA)	
Exemplares: 	CPATSA - (60826-1) - UPC - AP - DD -  -  -  - DIS