Effect of tillage systems and irrigation methods on cowpea crop on wetland soil in Roraima

Revista Brasileira de Engenharia Agrícola e Ambiental

Costa, Maristélio C.³  Araújo, Wellington F.²  Medeiros, Roberto D. de¹ 

[1] EMBRAPA, Boa Vista;UFRR;SAAB-RN, Natal

关键词: Vigna unguiculata;    sprinkler;    furrow irrigation;    soil tillage    INTRODUÇÃO Em Roraima;    as áreas de várzea irrigáveis ocupam cerca de 360;   

DOI  :  10.1590/S1415-43662005000200009

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

Two experiments were carried out during December, 1995 to March, 1996 and from December, 1996 to March, 1997 at the Experimental Station of Bom Intento, Boa Vista, RR. The objective was to evaluate the effects of different irrigation systems and tillage on soil bulk density and cowpea crop on wetland soils. The experimental design consisted of a split plot in a randomized block design, with four replications. The cowpea cv. Sempre Verde was tested under furrow and sprinkler irrigation in two soil tillage systems, as follows: disc harrow + leveling disc harrow and plough grid + leveller grid + moldboard plough. There were no significant differences among treatments with respect to production components and the crop yield. The mean grain yield was 1,853 kg ha-1. The soil bulk density after tillage with plough grid + leveller grid was significantly (p < 0.05) increased in comparison with the other tillage practices.

【 授权许可】

CC BY-NC