Plants require various nutrients during their growth process. Lack of certain elements can lead to phenomena such as yellowing, purpling, or reddening of the plant. Let's discuss the symptoms of nitrogen deficiency in plants.
Symptoms of Nitrogen Deficiency in Plants
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Leaf Yellowing: Overall discoloration where the leaves begin to turn yellow, gradually spreading backward. Older leaves also turn yellowish-green, and even lower leaves may wither prematurely.
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Slow Growth: When plants lack nitrogen, overall growth is restricted, resulting in stunted growth. Plants become very small, sometimes even ceasing growth. Stems and leaves show no vigorous growth tendencies, appearing weak and feeble. Stems grow thin and short, with minimal branching and tillering, sometimes leading to premature senescence.
Common Symptoms of Nitrogen Deficiency in Crops
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Corn: Thin stalks, stunted growth, slow growth, yellowing and from the bottom up, the symptoms spread along the veins towards the base, initially turning yellow then withering, or in a "V" shape.
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Rice: Small, upright plants with small leaves, minimal tillering, yellow-green leaves spreading from the leaf tip along the veins to the whole leaf, lower leaves first yellow and then scorched, small and short panicles.
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Wheat: Short, narrow leaves, yellowing of stem leaves, small, upright plants with minimal tillering, few and small grains.
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Soybean: Leaves develop bronze-colored patches, gradually turning yellow and drying up, slow growth, basal leaf drop, thin, tall stems, stunted growth, weak. Flowers and pods are sparse.
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Potato: Small leaf area, light green to yellow-green, edges of middle leaflets fade to pale yellow, curl upwards, premature shedding, short plants, thin stems, minimal branching, upright growth.
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Peanut: Leaves turn pale yellow to almost white, stems turn red, few root nodules.
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Chinese Cabbage: Slow growth, small plants, yellowish leaves, thin and small leaves, slender stems, nitrogen deficiency during the heading period, increased leaf fibers, incomplete leaf balls, reduced quality.
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Cucumber: Leaves are yellow-green, plants are dwarfed, severe cases result in pale yellow leaves, whole plants appear yellowish-white, fruits are slender and short, stems are thin and brittle, gray-green or bright yellow, spiny, fruits are deformed or fruit stems are light yellow.
Methods to Solve Nitrogen Deficiency in Plants
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Improve soil fertility and nitrogen supply capacity, increase the input of organic fertilizer appropriately, and enhance soil nitrogen retention and supply capacity.
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When applying high carbon-to-nitrogen ratio organic fertilizers in large quantities, pay attention to supplementing with a certain amount of quick-acting nitrogen fertilizer.
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For nitrogen deficiency caused by uneven soil fertility, apply quick-acting nitrogen fertilizer in a timely manner.
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Apply a certain proportion of quick-acting nitrogen fertilizer when plowing and tilling the land.
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During the growth period, spray a 0.5% urea solution on the leaves when nitrogen deficiency occurs.
Above are the symptoms of nitrogen deficiency in plants. Nitrogen deficiency can lead to slow growth, stunted growth, leaf yellowing, and affect tillering, resulting in serious yield reduction. Farmers should replenish nitrogen elements in a timely manner.
