Soya

SoyaNutrient Management

Nitrogen Nitrogen deficiency results in light thin and unhealthy plants. Bottom leaves of plant gets crincled like V shape and the tips and center if the leaf becomes yellow and it starts drying from the tip. New leaves of the plant also start showing these symptoms. These symptoms are more prominent in cold, drought, chemical matter and Nitrogen deficient conditions. Phosphorous In Phosphorous deficiency leaves from its tip and sides starts becoming blueish green, narrow light red purple. Tip of the leaves starts finishing. If plant starts getting Phosphorous then these symptoms are not shown in new leaves. Sometimes, these symptoms are seen in knee height crop or more taller crop. Potassium Bottom leaves of the plant starts yellowing from its tip and dries of or starts shedding. Plants gets stunted. These deficiencies mostly seen in wet, sandy, weathered soils. And in the soils in which, excess Potassium has been absorbed by the previous crops. Zinc In Maize grown areas Zinc deficiency is seen more. Zinc deficiency symptoms sometimes can be seen in germinating plants. White and Yellow spots are seen on the bottom side of the leaf. Whereas, middle portion and tip of the leaf remains green. New effective leaves of the plants are known as white buds. Zinc deficiency is more in the soils which have excess Phosphorous, high PH and more amount of chemicals. Boron Boron deficiency is not found commonly. Because of its deficiency irregular white patches and white line is seen on leaves. This is found in the soils which are dry, have high PH sandy, and have more chemicals. Yellowing of the leaves, drying and shedding of leaves can be because of poisonous nature of Boron. Magnesium Veins of bottom leaves of the plants turns yellowish white. Finally, old leaves ends and sides becomes red and purple and ultimately dies off. Its main causes are lower level of PH, sandy soils and excess of Potassium. Manganese In the soil Magnese deficiency is not seen oftenly. Veins of the leaves turns light yellow. Manganese deficiency often seen in the soils which has more amount of cow dung manure, chemical matters and high PH. It is also seen in sandy soils.