Effect of water regimes and plant densities on cowpea production

Cowpea has been cultivated in a rudimentary form in the main producing regions of Brazil, resulting in lower grain yields, when compared to the crop potential. The use of technologies such as water regimes, adequate plant density and soil management are alternatives to increase this crop yield. This...

Full description

Saved in:

Bibliographic Details
Published in:	Pesquisa agropecuária tropical Vol. 47; no. 4; pp. 432 - 439
Main Authors:	Marinete Martins deSousa Monteiro, Edson Alves Bastos, Cardoso, Milton José, Aderson Soares deAndrade Júnior, Valdenir Queiroz Ribeiro
Format:	Journal Article
Language:	English
Published:	Goiânia Universidade Federal de Goiás - Escola de Agronomia e Engenharia de Alimentos 01-10-2017 Universidade Federal de Goiás
Subjects:	Agricultural production Crop yield Crops grain yield irrigation Irrigation water Planting density Soil density Soil management Tillage Vigna unguiculata Vigna unguiculata (L.) Walp Water depth Water regimes Water treatment
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Cowpea has been cultivated in a rudimentary form in the main producing regions of Brazil, resulting in lower grain yields, when compared to the crop potential. The use of technologies such as water regimes, adequate plant density and soil management are alternatives to increase this crop yield. This study aimed at evaluating the effects of different water regimes and plant densities on the yield components of cowpea cultivated under conventional and no-tillage systems. A randomized block design in a split-plot factorial, with four replications, was used. The treatments consisted of five water regimes in the plots (157.00 mm, 189.00 mm, 234.00 mm, 274.00 mm and 320.00 mm) and five plant densities as subplots (12 plants m-2, 16 plants m-2, 20 plants m-2, 24 plants m-2 and 28 plants m-2). The evaluated variables were: number of pods per plant, number of pods per area, pod length and grain yield. The combination between 270 mm of irrigation water depth with a density of 280,000 plants ha-1 resulted in higher grain yield using the no-tillage system, while the combination between the density of 280,000 plants ha-1 and 320 mm of water depth favored the highest grain yields in the conventional growing system.
ISSN:	1983-4063
DOI:	10.1590/1983-40632017v4747908