Crescimento do milheto (Pennisetum glaucum) irrigado com água residuária no Seridó Paraibano

Abstract

The use of wastewater can be an irrigation alternative for millet, especially in areas with low availability of water, such as the Seridó Paraibano Region. The objective of this work was to evaluate the growth and production of millet irrigated with wastewater under a consortium with lab-lab beans. The experiment was conducted at the Caboré site, in the municipality of Frei Martinho-PB. The experimental design was a randomized complete block design with five plots (40, 60, 80, 100 and 120% of available water) in a consortium with lab-lab bean in the subplot. The treated wastewater came from the Sewage Treatment Plant of the municipality. The variables measured were: height of the plant; leaf area; number of leaves; diameters and SPAD (chlorophyll meter). There was a significant difference in relation to plant growth, leaf area and number of leaves. The stem diameter and SPAD had no significant effect, an average of 11.197 mm / plant and an average of 60.952 units were observed. The millet plants presented high number of leaves and high leaf area when applied to the irrigation blade of 300 mm of wastewater. The consortium of millet X-lab-lab beans did not interfere interfere with the growth of millet.