... conditions for crop and increase the soil water content by 1% to 2%.●Disease and insect resistance:Kill the pathogen ... , flowers, herbs, tea, tobacco and others.Guotoushengshi Demonstration Project:1.Demonstration project of heavy metal improvement in Zhuzhou City, Hunan ... conditioner in the control group compared to the use of 'Mulan’ zeolite soil conditioner on soil salinization of watermelon yield ...