Assessing the Effects of Digestates and Combinations of Digestates and Fertilizer on Yield and Nutrient Use of Brassica juncea (Kai Choy)

Anaerobic digestion of organic wastes produces solid residues known as digestates, which have potential a fertilizer and soil amendment. The majority research on digestate focuses their value. However, there is lack information about additional effects they may plant growth, both positive negative. Understanding the growth essential to optimizing use in agriculture helping close loop material energy balances. This greenhouse study evaluated two different food waste (FWD) lignocellulosic biomass (LBD); liquid fertilizer; various combinations digestates nutrient uptake efficiency (NUE) Brassica juncea (kai choy) plants. It also negative attributes including salinity possible biohazards. Combinations LBD performed well or slightly better than control for most parameters, aboveground root length. These same had significantly higher nitrogen control. Inhibitory were observed 100% treatments, likely due high electrical conductivity media from application. Based this research, could partially replace mineral fertilizers kai choy at up 50% target rate lead increased beyond fertilizers. FWD application, without causing significant growth. Increasing will provide incentives anaerobic process, it valuable products: biogas fertilizer.