Nitrogen transfer in the intercropping system with organic cherry tomato and legumes in succession to corn-green

• Grant number: 18/25483-8
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: June 01, 2019
• End date: December 25, 2021
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: Paulo Cesar Ocheuze Trivelin
• Grantee: Gabriela Cristina Salgado
• Host Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated scholarship(s): 19/21199-6 - Nitrogen and carbon rhizodeposition and enzymatic activity in the rhizosphere of the cherry tomato and jack bean (Canavalia ensiformis DC) in intercropping system, BE.EP.DR

Abstract

The species of green manure belonging to the Fabaceae family are preferred among the cover crops due to Biological Nitrogen Fixation (BNF). The N fixed by the legumes can be transferred to the main (non-legume) crop used in crop rotation or intercropping systems in order to increase the N-use efficiency of the green manure. Thus, the overall objective of the work is to evaluate the nitrogen transfer in an agroecological system agroecological system of intercropping system with cherry tomato and green manures in no - tillage system on corn straw. The experimental design will be a randomized block design with eight treatments and five replications. The treatments were: control with corn straw, control without maize straw and the consortia between the cherry tomato and the following species: jack bean (Canavalia ensiformis DC), sun hemp (Crotalaria juncea L.), velvet bean-dwarf (Mucuna deeringiana (Bort) Merrill)], mung bean (Vigna radiata (L.) Wilczek), white lupine (Lupinus albus L.), cowpea (Vigna unguiculata (L.) Walp).Samplings of the minitomateiro (leaf, bud and fruit), corn-green (whole plant and spike), green manures (whole plant) were done.It will be evaluated: (1) natural abundance of 15N (´15N 0), total N and macro and micronutrient of plants (minitomateiro, green manure and green corn) and soil; (2) the total carbon and natural abundance of 13C (´13C 0) for maize-green, green manure and soil; (3) calculation of maize-green, minitomateiro and green manure productivity; (4) the transfer of N from the legume to the minitomateiro; (5) Biological Nitrogen Fixation (BNF); (6) quantity N derived from BNF and soil; (7) agronomic equivalence index (IEA); (8) economic analysis and statistical analysis. (AU)

Scientific publications

(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)

SALGADO, GABRIELA CRISTINA; AMBROSANO, EDMILSON JOSE; ROSSI, FABRICIO; OTSUK, IVANI POZAR; BOVI AMBROSANO, GLAUCIA MARIA; SANTANA, CESAR AUGUSTO; MURAOKA, TAKASHI; OCHEUZE TRIVELIN, PAULO CESAR. Biological N Fixation and N Transfer in an Intercropping System between Legumes and Organic Cherry Tomatoes in Succession to Green Corn. AGRICULTURE-BASEL, v. 11, n. 8, AUG 2021. (14/22602-5, 18/25483-8, 10/07666-6, 11/05648-3)

SALGADO, GABRIELA CRISTINA; AMBROSANO, EDMILSON JOSE; ROSSI, FABRICIO; OTSUK, IVANI POZAR; BOVI AMBROSAO, GLAUCIA MARIA; PATRI, PATRICIA; HENRIQUE, CELINA MARIA; SANTANA, CESAR AUGUSTO; MURAOKA, TAKASHI; OCHEUZE TRIVELIN, PAULO CESAR. Yield and nutrient concentrations of organic cherry tomatoes and legumes grown in intercropping systems in rotation with maize. BIOLOGICAL AGRICULTURE & HORTICULTURE, NOV 2021. (14/22602-5, 10/07666-6, 18/25483-8, 11/05648-3)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SALGADO, Gabriela Cristina. Nitrogen transfer in the intercropping system between organic cherry tomato and legumes in succession to green corn. 2022. Doctoral Thesis - Universidade de São Paulo (USP). Centro de Energia Nuclear na Agricultura (CENA/STB) Piracicaba.