Nitrogen deficiency: The corn plants grow slowly, the leaves are narrow, the stems are slender, and the leaf color turns yellowish-green, and the lower leaves become older. In the absence of nitrogen, the old leaves first showed symptoms and then developed to the tenderer leaves of the plants. Phosphorus deficiency: seedling growth is slow and dwarf, root development is poor, leaves do not stretch, stems are thin, stems and leaves are dark green and purplish, tips are dry and dark brown, and they are deep from the tip of the leaves along the leaf margins. Green and purplish. Purple is due to the impaired sugar metabolism in corn plants, the accumulation of sugar in the leaves is more, promote the formation of anthocyanins, so that plants are purplish. Phosphorus deficiency from booting to anthesis, impaired glucose metabolism and protein synthesis, poor ear differentiation, contraction of the top of the panicle, and even empty panicles. Filaments are also delayed in extraction, leading to baldness, lack of grain and irregular rows of grains, bending of the ear, etc. . Potassium deficiency: Potassium deficiency in maize, seedlings show slow development, and leaf color is light green with green stripes. Potassium in the old leaves is transferred to new tissues, and the tips and edges of the leaves are necrotic and appear dry and burning. However, the midribs remain green. If there is a severe shortage of potassium, the plants grow short, the internodes shorten, the ear development is poor, the tip is particularly sharp, the bald top is severe, the grain starch content is reduced, and the grain weight is reduced. Zinc Deficiency: Light yellow stripes appear on both sides of the early middle leaves of maize, while the midribs and edges of the leaves remain green. If zinc deficiency continues, the striped part may be necrotic, forming a wide faded band. The entire maize plant turns light green, growth is delayed, and it may die prematurely and die. Zinc can catalyze the photochemical reaction of chlorophyll, and Zn deficiency can cause chlorosis. It's a warm yellow fleece sweater. The way it closes is by cupping. Therefore, it can keep warm very well. The style of the hoodie is comfortable and beautiful. The half-moon shaped jersey is on the back of neck,which is comfortable to wear. Front trouser pocket is convenient for you to carry personal belongings when traveling. The drawline uses a strong tubular drawline, which is very strong. 100% Polyester Fibre Coat,Fiber Coat,Sport Coats,Mens Designer Coats Xinhui Jielide Garment Factory , https://www.ntgfwear.com
The lack of corn performance