Production of sweet corn and grains intercropped with legumes in no-till organic systems

The search for more sustainable production ways is an agriculture need. The no-till organic corn production system meets several soil conservation principles. It provides contaminants free products, and it is responsible for making the agriculture less dependent of external inputs. The products, corn grain and sweet corn, are critical to monogastric nutrition and human nutrition, which are in a wide variety of Brazilian typical dishes. To find innovations that can led to viable alternatives of production, the aim of this study was to evaluate the residual fertilizer effects in production components, grain and sweet corn yield at different levels of organic compost and intercropping of jack bean (Canavalia ensiformis) and pigeonpea (Cajanus cajan) with corn in no-till organic crop system (NTOCS). The experiment was conducted in a randomized block design with six treatments and four replications. The treatments were: T1 maize monoculture without fertilizer (Residual fertilizing from organic compost of 27 previous crops); T2 maize monoculture, fertilized with 20 m3 ha-1 of organic compost; T3 maize monoculture, fertilized with 40 m3 ha-1 of organic compost; T4 corn and jack bean intercropped, fertilized with 40 m3 ha-1 of organic compost; T5 maize and dwarf pigeonpea intercropped, fertilized with 40 m3 ha-1 of organic compost and T6 - Maize and pigeon pea shrub intercropped, fertilized with 40 m3 ha-1 of organic compost. The ANAVA was performed using the "F" test (p