The aim of this research is to understand how cover crop species combined with different times of N application affect the cover crop straw, nutrition and productivity of cash crop, soil chemical properties and soil microbial composition and function in a holistic approach of the entire agricultural system under tropical no-till system (Fig. 1). Focus is on microbiome that immediately respond to the N application disturbances and in a long period to the plant cultivation, N inputs and soil properties changes. We use 3-year field experiment with palisade grass and ruzigrass cover crops and subsequent maize cash crop combined with different N management strategies to quantify the microbial genes of the N cycle and the bacterial and fungal communities’ structure and composition in the agricultural system.
Palisade grass has advantages over ruzigrass for use as cover crop in agriculture systems, regardless of N input.