Soybean oversowing with Urochloa ruziziensis and corn as rotation crop

Author(s)

Núbia Maria Correia ^[1] ; Leonardo José Petean Gomes ^[2]

Affiliation

^[1] Embrapa Hortaliças - Brasil

^[2] Universidade Estadual Paulista Júlio de Mesquita Filho - Brasil

• Document type: Journal article
• Source: Pesquisa Agropecuária Brasileira; v. 50, n. 11, p. 1017-1026, 2015-11-00.

Abstract

Abstract: The objective of this work was to evaluate soybean oversowing with Urochloa ruziziensis, for the soybean capacity of dry mass production, for weed infestation, and corn crop development under no-tillage system. The experiment was carried out in a randomized complete block design, with four replicates, in a 2 x 5 + 1 factorial arrangement. Oversowing with U. ruziziensis was evaluated in two soybean growth stages (R6 and R8) and five seed quantities: 200, 400, 600, 800, and 1,000 points of cultural value (PCV).For control, a treatment without oversowing was kept. Oversowing of 200 PCV of U. ruziziensis, at the R6 or R8 soybean stages, results in a sufficient straw quantity for no-tillage system, and favors weed control in the rotation corn crop. However, in high amounts, U. ruziziensis straw over the soil affects corn plant height and grain production. (AU)

• FAPESP's process: 10/18286-0 - Soybean crop oversowing with forage grass and legume and the effects in the corn crop in rotation under no-tillage system
• Grantee: Núbia Maria Corréia
• Support Opportunities: Regular Research Grants