Дефицит железа (Fe)
Iron is an important micronutrient needed in small quantities by all plants. Many vital processes such as the production of chlorophyll and nitrogen fixation depends on iron. Iron deficiency is among the most widespread nutritional deficiencies.
Iron is largely sufficient in most soil; however, its availability varies with soil conditions throughout the year and on the plants themselves. Moreover, iron becomes unabsorbable when the soil is not acidic enough.
Because iron chlorosis appears mainly in crops grown on calcareous soil, it is often called lime-induced chlorosis.
Iron is considered as an immobile micro-element, meaning that signs of iron deficiency first manifest during the stage of new growth. The main symptom will be Inter-venial chlorosis of new leaves, which means that the tissue between the veins turns yellow in color, while the veins remain green.
Корректирующие меры FeEDDHA, известное как секвестрин 138 – это эффективное железосодержащее удобрение для коррекции хлороза листьев при недостаточности железа и лучше всего работает при внесении в корни растений через систему орошения. Изолированное железо доступно растениям без корректировки pH почвы, что не относится к сульфату железа – другому соединению, используемому для корректировки дефицита железа.
*Names marked in red are considered to be highly poisonous to beneficial insects.
*Names marked in green are considered to be organic and IPM (integrated pest management) compatible.
Галерея
