Produção de grãos e silagem de milho em consórcio com guandu-anão no sistema orgânico

Abstract

In Brazil there is a shortage in the supply of protein foods for animal feed in an organic system. The intercropping of maize with pigeon pea can be an alternative to increase the protein content in the silage and serve as a protein source in an organic system.The objective was to evaluate the dry matter productivity (maize and Cajanus cajan L.), maize grain and the chemical-bromatological composition of maize silages intercropped with different densities of C. cajan plants in an organic system. The treatments were five densities of C. cajan in intercropped with maize: (M) 0, (MC6) 6, (MC12) 12, (MC18) 18 and (MC24) 24 C. cajan plants m-1 sown in the same line of corn planting. The number of maize plants was 6 m-1 in all treatments. There was no difference between treatments for plant height, ear height, plant stand and maize grain yield. The highest dry mass production occurred in MC24. The dry mass production of C. cajan did not vary between the densities of 12, 18 and 24 plants. The maize plants showed N and S deficiency, regardless of the treatments. The addition of C. cajanus in the silage up to the percentage of 6.44% did not increase the crude protein content. Regardless of the treatments, the acid detergent fiber values were above those considered ideal for silage.