Growth stages of mono-and dicotyledonous plants
OKLAHOMA SOIL FERTILITY HANDBOOK
花芽分化及其调控
果树发育生理 果树的个体发育和花芽分化
soil physical constraints to plant growth and crop production
Root growth
COMPOSITION OF FOODS食物养分组成(下载后查看更清晰一些)
Managing Cover Crops Profitably. Published by the Sustainable Agriculture Research and Education (SARE) program, with funding from the National Institute of Food and Agriculture, U.S. Department of Agriculture
史上最全的植物形态图解 史上最全的植物形态图解 史上最全的植物形态图解 史上最全的植物形态图解