MORFOMETRIA E DESEMPENHO PRODUTIVO DE CAPIM-ELEFANTE ADUBADO COM ESTERCO BOVINO

Abstract

The use of elephant grass (Penninsetum purpureum Schum.) Fertilized with farm manure is a promising alternative for small farmers. Therefore, it is necessary to test different cultivars and manure doses. The present work aimed to evaluate the performance of cultivars and cutting ages of elephant grass at the time of waters submitted to different doses of cattle manure in Ceres - GO. The cultivars used were BRS Capiaçu and BRS Kurumi. The cutting ages at 45, 60 and 75 days. The planting was done by stalks planted directly in the furrow with spacing between 1 x 1 m. A randomized complete block design was used in a split-plot factorial scheme, consisting of the 2 cultivars (plots), 3 cutting ages (45, 60 and 75 days; subplots) and 5 manure doses (0, 0.5, 1, 0, 1.5 and 3.0 times the equivalent of nutrient recommendation), with 4 repetitions. The attributes evaluated were: plant tillering by number of aerial tillers (NAT), number of basal tillers (NBT), stem height (SH), plant height (PH), stem diameter (SD), green matter (GM), dry matter production (DMP), green matter production (GMP), and stem leaf ratio (L / R). There was no interaction between treatments and attributes evaluated except for cultivar x cuts. For the attributes (GMP), (DMP), the differences occurred for cultivars. For the attribute (NBT), only for the factor ages of cuts. For the other attributes, there were statistical differences for the cultivars isolated factors and cutting ages. Under the conditions of the present study, cattle manure doses did not have significant effect on growth parameters and yield of elephant grass BRS Kurumi and BRS Capiaçu. The cultivar BRS Kurumi has higher, NAT and L / R. The cultivar BRS Capiaçu stands out in relation to SH, PH, SD, GMP and DMP. The NBT attribute was not granted