Application of biomass nutrient solution from hydrothermal carbonization in tomato growth effect and insect pest and disease prevention and control

Abstract

To reduce the problem and secondary pollution of agricultural wastes in Taiwan, this research prepared biomass nutrient solution (BNS) was prepared from three kinds of agricultural wastes, sugarcane peel, peanut shells, and rice husks, under an equal mixing ratio in a hydrothermal reactor with pure water at a higher temperature of 200 °C and at a higher pressure of 15 atm. BNS was used to irrigate soil for the tomato growth experiments in a nethouse. In comparison with blank, the plant height was increased by 15cm, the stem thickness was increased by 0.4mm, the number of green leaves for a single plant was increased by 2, the number of fruits was increased by 2, and the fruit weight for each plant was increased by 108g. Therefore, the application of spraying the BNS on tomato can improve the plant growth in height, the control late tomato blight disease was also observed.