Produtividade e qualidade de silagem de trigo e ervilha forrageira, em diferentes proporções de cultivo

Abstract

Livestock in southern Brazil face difficulties in forage supply due to seasonal forage voids that affect different regions, reducing milk and meat productivity. The adoption of a forage planning to avoid losses in production processes, such as forage conservation fits within a forage planning, with corn and winter cereal silages being of great importance, however there is a need to improve these crops for more expressive production. The present study aimed to evaluate the productivity and quality of single wheat silage and intercropped with forage pea. The work, in the field, was carried out in the municipality of Palma Sola - SC, in a randomized block design with five treatments and four replications, being the treatments single wheat, single forage pea, and intercropping between wheat and pea in the following proportions 75: 25, 50:50 and 25:75. The variables analyzed were soil cover, productivity of green matter and dry matter, pH of the silage, dry matter and crude protein of the silage. Intercropped crops were more efficient for soil cover throughout the cycle, and presented a higher percentage of final cover. All silages showed good fermentative characteristics, with pH below 5.0. For the CP variable, the highest percentage was 17.78% for pea silage, and 16.35%, 15.85% and 14.11% for the proportions of wheat and pea 75:25, 50:50 and 25:75, respectively, wheat silage presented 11.78% of CP. The intercropping with equal proportions of wheat and pea had the highest productivity, being 8.24 t ha-1, while the intercropping with the highest proportion of pea had a higher protein productivity, being 1,323.05 kg ha-1.