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Phosphorus conservation in cropping systems

Grant number: 15/04200-0
Support Opportunities:Regular Research Grants
Duration: July 01, 2015 - June 30, 2017
Field of knowledge:Agronomical Sciences - Agronomy - Soil Science
Principal Investigator:Ciro Antonio Rosolem
Grantee:Ciro Antonio Rosolem
Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil


This project is proposed as a continuance of the research on phosphorus use efficiency in cropping systems that has been developed by our group. Two sub-projects are proposed: one exploring the possibility of improving phosphorus uptake by maize due to localized fertilization with ammonium N, which has been demonstrated in alkaline soils, but it is not known if this could also occur in acid soils, as intended in the present study. This sub-project is already under way. The other sub-project is to try to elucidate the fact that Urochloa ruzisiensis, while apearing to enhance available P in soil when extracted with resin, hinders soybean growth and yelds grown afterwards. In general, with no P application, soybean yields are lower when cropped after U. ruzisiensis (Janegitz, 2012; Adams, 2014). The field experiment of this subproject has been conducted for 14 years. (AU)

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Scientific publications (6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ALMEIDA, DANILO S.; MENEZES-BLACKBURN, DANIEL; TURNER, BENJAMIN L.; WEARING, CATHERINE; HAYGARTH, PHILIP M.; ROSOLEM, CIRO A.. Urochloa ruziziensis cover crop increases the cycling of soil inositol phosphates. BIOLOGY AND FERTILITY OF SOILS, v. 54, n. 8, p. 935-947, . (15/04200-0, 14/23707-5)
ALMEIDA, DANILO S.; ROCHA, KASSIANO F.; DE SOUZA, MURILO; DELAI, LUCAS B.; ROSOLEM, CIRO A.. Soil Phosphorus Bioavailability and Soybean Grain Yield Impaired by Ruzigrass. AGRONOMY JOURNAL, v. 110, n. 2, p. 654-663, . (14/23707-5, 15/04200-0)
ALMEIDA, D. S.; MENEZES-BLACKBURN, D.; ROCHA, K. F.; DE SOUZA, M.; ZHANG, H.; HAYGARTH, P. M.; ROSOLEM, C. A.. Can tropical grasses grown as cover crops improve soil phosphorus availability?. SOIL USE AND MANAGEMENT, v. 34, n. 3, p. 316-325, . (14/23707-5, 15/04200-0)
ALMEIDA, DANILO S.; MENEZES-BLACKBURN, DANIEL; ZHANG, HAO; HAYGARTH, PHILIP M.; ROSOLEM, CIRO A.. Phosphorus availability and dynamics in soil affected by long-term ruzigrass cover crop. Geoderma, v. 337, p. 434-443, . (15/04200-0, 14/23707-5)
VOLF, MARCELO R.; ROSOLEM, CIRO A.. Soil P Diffusion and Availability Modified by Controlled-Release P Fertilizers. JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION, . (15/04200-0)
ALMEIDA, DANILO SILVA; DELAI, LUCAS BENES; HELENA FRANKLAND SAWAYA, ALEXANDRA CHRISTINE; ROSOLEM, CIRO ANTONIO. Exudation of organic acid anions by tropical grasses in response to low phosphorus availability. SCIENTIFIC REPORTS, v. 10, n. 1, . (14/23707-5, 15/04200-0)

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