Liming and Phosphating on growth, nutritional status and mycorrhizal colonization of yellow strawberry guava



Título del documento: Liming and Phosphating on growth, nutritional status and mycorrhizal colonization of yellow strawberry guava
Revista: Scientia Agricola
Base de datos: PERIÓDICA
Número de sistema: 000455441
ISSN: 0103-9016
Autores: 1
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Instituciones: 1Universidade Federal de Pelotas, Departamento de Fitotecnia, Capao do Leao, Rio Grande do Sul. Brasil
2Empresa Brasileira de Pesquisa Agropecuaria, Clima Temperado, Pelotas, Rio Grande do Sul. Brasil
3Empresa de Pesquisa Agropecuaria e Extensao Rural de Santa Catarina, Lages, Santa Catarina. Brasil
Año:
Volumen: 79
Número: 5
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés Strawberry guava (Psidium cattleyanumm Sabine) is a species native to southern Brazil which exhibits significant potential for economic exploitation. The objective of this study was to evaluate the growth response of strawberry guava subjected to liming and phosphate fertilizer in pre-planting. The treatments consisted of four lime levels: 0; 33.3; 66.6 and 100 % of the dose needed to increase the pH in water to 6.0, and four phosphorus (P) doses: 0; 83.3; 166.6 and 250 kg ha–1 of P2O5. Plant growth parameters were evaluated for three years. In the years 2018 and 2019, the mineral composition of leaves, photosynthethic pigment indices and mycorrhizal colonization on strawberry guava roots were measured. Liming and phosphate fertilizer altered neither plant growth nor the photosynthetic pigment indices and there was no interaction between the factors studied and the remaining variables evaluated. However, liming promoted increases in the Ca and Mg shoot content, and the phosphate fertilizer increased the levels of shoot P in the third year of growth. Mycorrhizal colonization was stronger when the P soil levels were low, which could explain the absence of response to phosphate fertilization on plant growth for the first three years after planting
Disciplinas: Agrociencias,
Biología
Palabras clave: Frutales,
Suelos,
Hongos,
Fertilización,
Psidium cattleyanum,
Fósforo,
Acidez del suelo,
Caliza
Keyword: Fertility,
Fruit trees,
Soils,
Fungi,
Psidium cattleyanum,
Limestone,
Phosphorus,
Soil acidity
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