Sugarcane deficiency

Symptoms A nitrogen-deficient plant is emaciated with light red stems, with dry tips and edges, and old leaves reddish purple. The two phosphorus-deficient stalks are thin and thin, the internodes are short, the new leaves are narrow, the color is yellow-green, and the tips of the old leaves are dry and dry. The three short of potassium stalks are short, young leaves are dark green, and then gradually grayish yellow. The tips and edges of the old leaves were scorch, with brown stripes and white spots on the leaves, and many reddish-brown streaks appeared in the midrib tissue and died locally. On the old leaf of the four deficient magnesium, a small green spot was first found between the veins, followed by a brown color, evenly distributed on the leaf surface, and then fused into a large rust spot, so that the entire leaf was rust brown and the stem was thin. Five sulfur-deficient young leaves lost chlorosis, pale yellow-green, later turned pale lemon yellow and slightly lavender, old leaves purple thick, poor plant root development. The six deficient young leaves of the mandarin are first in the veins. The stripes are dense green and light. The middle part of the leaves is more obvious than the tip. The tip of the leaves is light green and the white part is white. In the white stripe, small patches of spotting appear at the same time. Tissue, split along the longitudinal section of the blade. The seven boron-deficient young leaves have small, long, water-stained spots that are parallel to the veins and then become strips. The back of the leaves often shows some knobs. The middle part of the lesions in the late leaves were dark red, the inner edges of the serrated leaves showed cracks, and narrow brownish strips appeared in the stems.

See the causes of rice deficiency disease.

Prevention methods (1) Preventing nitrogen deficiency Based on the application of basal fertilizer, long-term urea is recommended during the growth period, and urea aqueous solution is sprayed during emergency. (2) The difficulty in preventing phosphorus deficiency in supplying phosphate fertilizers to sugarcane fields is that phosphate fertilizers are easily fixed in soil and become ineffective. In particular, soils with high iron content and high aluminum content can fix phosphate, but the soil contains low calcium. The supply of phosphate is also difficult. In the latter case, lime can be used to greatly increase the availability of phosphorus. (3) To prevent potassium deficiency, it is generally effective to apply potassium fertilizer. If the soil conditions are not good, it is better to apply organic fertilizer before planting and potassium, or to spray potassium fertilizer. (4) To prevent magnesium deficiency in sugar-filled fields grown in the field of magnesium deficiency, spraying 2% magnesium sulfate on the leaves can be quickly corrected. (5) Prevent sulfur deficiency from applying ammonium sulfate or 100 kg of human waste. Add 500 g of ferrous sulfate to convert ammonium carbonate from human waste to ammonium sulfate. (6) Prevent manganese deficiency from applying manganese sulfate or other manganese compounds. (7) To prevent the boron-deficient Boron from being fixed in the sugarcane plant once it is used, so the young tissue must be continuously supplied.

Multi-vitamin Used to supple kinds of vitamin.Treatment and prevention of vitamin deficiencies in farm animals, such as growth disturbances, weakness of new-born animals, neonatal anemia, sight disturbances, intestinal troubles, convalescence, anorexia, not-infectious reproductive disturbances, rechitis, muscle weakness, muscular tremor and myocardial failure with difficulties in breathing; worm infections.

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