Recycling of nutrients with application of organic waste in degraded pasture

Engenharia Agrícola

Adriane De A. Silva²  Adriana M. Da Costa¹  Regina M. Q. Lana¹  Ângela M. Q. Lana¹ 

[1] ,Universidade Federal de Uberlândia

关键词: Poultry litter;    swine manure;    soil chemistry;    nutrient uptake;    cama de aviário;    dejetos suínos;    química do solo;    absorção de nutrientes;   

DOI  :  10.1590/S0100-69162012000200020

来源: SciELO

【 摘 要 】

The utilization of organic wastes represents an alternative to recover degraded pasture. The experiment aimed to assess the changes caused by the provision of different organic waste (poultry litter, turkey litter and pig manure) in a medium-textured Oxisol in Brazilian Savanna under degraded pasture. It was applied different doses of waste compared to the use of mineral fertilizers and organic mineral and evaluated the effect on soil parameters (pH, organic matter, phosphorus and potassium) and leaf of Brachiariadecumbens (crude protein, phosphorus and dry mass production). It was observed that application of organic waste did not increase the level of soil organic matter and pH in the surface layer, and the application of turkey litter caused acidification at depths of 0.20-0.40 m and 0.40-0.60 m. There was an increase in P and K in the soil with the application of poultry litter and swine manure. All organic wastes increased the productivity of dry matter and crude protein and phosphorus. The recycling of nutrients via the application of organic waste allows efficiency of most parameters similar to those observed with the use of mineral sources, contributing to improving the nutritional status of soil-plantsystem.

【 授权许可】

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