01096nam a2200421Ia 4500 220204s9999 xx 000 0 und d 631.589.3:581.13 HEW;2 HEWITT, E J Sand and water culture methods used in the study of plant nutrition Ed.2 England CAB 1952 Technical communication No 22 Automatic irrigaton Boron Copper Disease control Environmental factor Ion Ion exchange resin Light Manganese Micronutrient deficiency Nutrient impurities Nutrient reagent Nutrient solution Nutrient treatment Plant containers Plant nutrition Sand Sand culture Solid rooting media Temperature Testing Tree culture Water culture Zinc BK 22525 22525 0 0 0 0 MAIN MAIN 2021-12-16 0 631.589.3:581.13 HEW;2 03245 2021-12-16 00:00:00 2022-02-14 BK