**1. Introduction**

Globalization has promoted the need foragricultural systems to becomeefficient and highly productive. Addressing theratio of production to the environment and creating links be‐ tween differentsupply chains, whilst maintaining their sustainability, is a challenge for any agro-industrial system model.

In the Brazilian agricultural production context, in 2012, highlightingpoultry, there were 5.23 billion slaughtered animals and the production of eggs and number of hens was499.85 million [9]. According to [11], broiler breeding produces on average four tonnes of bed per year per1000 birds.It has been calculated that1000 hens produce about 0.12 t day-1of manure [14]. Every year 42.85 million tonnes (t) of solid waste is generated in Brazil which could be used both in agriculture and in pastures.

There is a need to research development enabling the use of agricultural waste, so it be comespossible to improve the physical, chemical and biological aspects oftropical soils. Organic fertilizers can provide a greater contribution under these conditions when compared to mineral fertilizers [10]. The use of residue in agricultural soils is favoredbecause of the low cost of manure fromfarms, with the buyer beingresponsible for low-density transport and huge volume.

The use of solid manure is a cost-saving alternative to fertilized pastures [2]; poultry manure has higher levels of organic matter, total nitrogen, total phosphorus and carbon than other types of manure [3]. According to the Ministry of Agriculture Livestock and Supply [6], it is permitted to use poultry manure on pastures and forages with a grace period of 40 days after application and incorporation.

The mechanical soil incorporation of poultry manure on recovering areas can be performed with the use of light tiling with a disc harrow or chisel plow. In this process the disc harrow causes greater movement of soil and forage, due to cutting by the action of the discs, while the chisel plow opens small grooves preserving forage crops on the soil surface.

The *Brachiaria brizantha* cv. Marandu, with 30 years of cultivation in Brazil, is the forage crop used most favorably by producers, who do not practisesoil fertility control and proper pasture management. There areinformation gaps on the structural characteristics of the crop during regrowth under nitrogen and pasture management [1]. It is known that the maximum rates of dry matter forage accumulation are associated with light interception in 95% of incident radiation [19, 23].

Although there is a complex dynamic process between soil, plants, climate and animals it is also important to know the mechanical and fertilization alternatives forthe recovery the forage. As the dry matter production of Marandu grass fertilized with chicken manure and managed with, and without soil chiseling, in light interceptions of 95% at canopy heightsup to 0.15 m, total dry mass of the canopy at ground level and dry mass residue to height of 0.15 m, and their structures as Leaf Blade, Stem + Sheath and dead material. Assessing how the chicken manure applied on grass Marandu changes its production within this system.
