Avaliação de níveis de irrigação e a utilização de composto de lixo orgânico na formação de mudas cítricas.

Abstract

The present work aimed at to study the effect of the association between the irrigation and types of substrate, in the formation of citric mursery trees. The used experimental delineation was of casualizados blocks, with subdivided parcels, with 4 repetitions, 3 levels of irrigation and 5 types of substrate. The following substrate had been used: 100% of rind of pinus, 80% of rind of pinus + 20% organic waste compost, 60% of rind of pinus + 40% organic waste compost, 20% of rind of pinus + 80% organic waste compost and 100% organic waste compost. The irrigation was made with blades of 50%, 100% and 150% of the evaporation of modified atmometer, for the dripping system. The rootstock used was the Citromel Sewingle and the used pantry was the variety “Valência”. The evaluation of the development of the plants was done biweekly, measuring the diameter of stalk and the height of the plant. The results had shown that the citric mursery trees they had presented changeable water necessity with different substrate of which if it detached substrate 3 (60% of rind of pinus + 40% organic waste compost), therefore it propitiated better conditions for the development of the plants. The irrigation 3 (150% of the evaporation of atmometer) it was what it provided the best development of the orange plants.