Black oats (Avena strigosa Schreb) solubilize rock phosphate and provide phosphorus to the successive crop, grapevine (Vitis labrusca L. "Red Niagara").

In grape production, cover crops play a key role in soil protection and nutrient cycling. Thus, since grapevine requirements for P are low, adequate management of cover crops may provide sufficient P for growth. This paper evaluates the effect of black oats, as a cover plant, on the P solubilization in rock phosphate and its availability to the vine cultivated in succession. To test this hypothesis, we evaluated the plants growth parameters and P uptake in grapevines grown in succession to black oats in pots in a greenhouse experiment. The results showed that the soil sterilization decreased P availability to black oats, but not to grapevine. The soil fertilization with rock phosphate increased the P accumulation in oat and grapevine plants, although no further effect was observed from the use the cover crop. The plant height and dry mass contents were higher for grapevine in soils fertilized with rock phosphate and covered with black oats. Keywords: cover crop, rock phosphate, Vitis labrusca, Avena strigose, successive cropping

Bibliographic Details

Main Authors:	MELO, G. W. B. de, MORAIS NETO, J. A., BORBA, D. R., IWAMOTO, H., OZELAME, K. P. C., VIEIRA, J. L., ZALAMENA, J., NASCIMENTO JUNIOR, A.
Other Authors:	GEORGE WELLINGTON BASTOS DE MELO, CNPUV; J. A. Morais Neto, State University of Rio Grande do Sul, Bento Gonçalves, Brazil; D.R. Borba, State University of Rio Grande do Sul, Bento Gonçalves, Brazil; H. Iwamoto, State University of Rio Grande do Sul, Bento Gonçalves, Brazil; K. P. C. Ozelame, State University of Rio Grande do Sul, Bento Gonçalves, Brazil; J. L. Vieira, State University of Rio Grande do Sul, Bento Gonçalves, Brazil; J. Zalamena, Federal University of Santa Maria, Santa Maria, Brazil; A. Nascimento Junior, Embrapa Wheat, Bento Gonçalves, Brazil.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2019-01-09
Subjects:	Cover crop, Avena strigose, Successive cropping, Vitis Labrusca, Rock phosphate,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103346
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