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Sugar cane yield in subsequent cycles associated to the residual effect of N and S and their transformations in the soil, on conservation system

Grant number: 02/10534-8
Support type:Research Projects - Thematic Grants
Duration: October 01, 2004 - March 31, 2010
Field of knowledge:Agronomical Sciences - Agronomy - Soil Science
Principal researcher:Paulo Cesar Ocheuze Trivelin
Grantee:Paulo Cesar Ocheuze Trivelin
Home Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Pesquisadores principais:
Paulo Leonel Libardi
Associated scholarship(s):08/11565-0 - Utilization by third sugarcane ratoon of nitrogen fertilizer applied at first ratoon, BP.IC
08/05491-4 - Sugarcane balance nutrition related to nitrogen and water disponibility in soils of the State of São Paulo, BP.DR
08/01217-5 - Root system development and sugarcane yield in soils with different properties related to nitrogen fertilization, BP.DR
+ associated scholarships 08/02723-1 - Utilization by sugarcane crop of nitrogen (15N) from cultural residues generated after mechanical harvested of sugarcane field without burning., BP.IC
07/08463-9 - Utilization by sugarcane ratoons of nitrogen fertilizer applied at planting and after first harvest, BP.PD
06/51251-0 - Accumulation of nutrients and development of sugarcane root system in different levels of nitrogenated fertilizer plantation applications and their relationship to the productivity of the CNA-plant and sugarcane rhizome, BP.MS
06/52978-0 - Behavior of the inorganic N dissolved in surface and sub-surface waters in area under sugarcane cultivation, BP.MS
05/52094-2 - Evaluation of the effect of the urease inhibitor NBPT (N-(N-butyl) thiophosphoric triamide) on the efficiency of the fertilizing urea in sugarcane, BP.MS - associated scholarships

Abstract

Considering that the current knowledge on the response of the sugar cane yield to the N and S fertilization was obtained with experiments in only one cycle: plant cane or ratoon crop; that the sugar cane is a semi-perennial grass and as such it is dependent of the energy and nutrient reserves of the root system (roots and rhizomes) in order to sustain the vigor of ratoon plants; considering, also, that the main losses of N from the soil-plant system may occur by nitrate leaching and denitrification in the soil, and ammonia volatilization by foliage, and this last process can explain the reductions in the N content of the sugar cane plants at the end of the cycle; the main objective of this project will be to evaluate the sugar cane yield in conservation system - without burning the cane straw before harvesting and without plowing the soil - in relation to N fertilization applied to the plant cane and ratoon cycle, and the interaction of those N fertilizations in overall yield of sugarcane crop. The transformations of fertilizer-N and - S in the soil-plant system will be evaluated by 15N and 34S stable isotope techniques and it will intend to find out correlation's between them and sugar cane yield. Four field experiments will be carried out, with one cultivar of sugar cane, in soils with different textures. The sugar cane will be planted between January to April 2004, and the experiments will last 4 years. Four doses of N-uréia: 0, 40,80 and 120 kg ha-1 of N applied in the planting furrow, will be tested in the plant cane cycle. There will be microplots with urea- 15N for the determination of the N-fertilizer utilization by plant cane and for evaluations of the residual effect in the subsequent cycles (first and second ratoons). Ammonium sulfate (AS) will be applied in the first ratoon associated to the doses of urea-N applied at planting of sugar cane, at rates of 0, 50, 100 and 150 kg ha-1 of N. Ammonium sulfate will be applied in soil surface onto straw cover. There will be microplots with AS (rate of 100 kg ha-1 of N) labeled with 15N and 34S for the evaluations of N and S utilization by first sugar Gane ratoon plants, as well as of the residual effect in the third crop cycle and for transformations of N and S in the soil. (AU)

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Scientific publications (4)
(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)
MARIANO, EDUARDO; OTTO, RAFAEL; MONTEZANO, ZAQUEU F.; CANTARELLA, HEITOR; TRIVELIN, PAULO C. O.. Soil nitrogen availability indices as predictors of sugarcane nitrogen requirements. EUROPEAN JOURNAL OF AGRONOMY, v. 89, p. 25-37, . (11/07955-0, 11/14372-1, 08/56147-1, 02/10534-8)
FERREIRA, DANILO A.; FRANCO, HENRIQUE C. J.; OTTO, RAFAEL; VITTI, ANDRE C.; FORTES, CAIO; FARONI, CARLOS E.; GARSIDE, ALAN L.; TRIVELIN, PAULO C. O.. Contribution of N from green harvest residues for sugarcane nutrition in Brazil. Global Change Biology Bioenergy, v. 8, n. 5, p. 859-866, . (02/10534-8)
BRITO, ALEXSANDRO DOS SANTOS; LIBARDI, PAULO LEONEL; GHIBERTO, PABLO JAVIER. Componentes do balanço de água no solo com cana-de-açúcar, com e sem adubação nitrogenada. Revista Brasileira de Ciência do Solo, v. 33, n. 2, p. 295-303, . (02/10534-8)
CARVALHO, JOAO L. N.; HUDIBURG, TARA W.; FRANCO, HENRIQUE C. J.; DELUCIA, EVAN H.. Contribution of above- and belowground bioenergy crop residues to soil carbon. Global Change Biology Bioenergy, v. 9, n. 8, p. 1333-1343, . (13/13451-0, 02/10534-8)

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