At present, rice will enter the jointing and booting stage. During this period, the growth of rice will have a great influence on the grain weight and yield at a later stage. In provinces with advanced rice production levels, top-dressing panicle fertilizer has become an important technical measure to capture high yields during production. Universal application. However, in the rice production in our province, the top dressing generally adopts the “one-shelled bombardment” method, and there is little application of panicle fertilizer, which is not conducive to the large grain and multiple grains of the panicle, which affects the increase of rice yield.

Following the application of rice panicle fertilizer, according to the growing situation of the seedlings should be formulated as appropriate. In the southern Henan area, for the light-colored plots, 3-5 kg ​​of urea and 2-3 kg of potassium chloride can be topdressed per acre to promote stalk growth and growth. Along the Yellow Rice Region, for plots with a high number of tillers and a normal leaf color, 5-6 kilograms of diammonium phosphate can be harvested per acre at the end of July; for places where the color of the leaves is thick or the number of tillers has exceeded the high yield index In the block, fertilizer application time should be postponed. In early August, 5 kg of diammonium phosphate should be topdressed per acre. For plots with luxuriant leaves and thick green sheds, the number of tillers exceeding the high yield index should not be fertilized.

Oysters contain zinc, a trace element. As one of the essential trace elements in the human body, zinc plays a very important role in brain development and can increase synaptic transmission, that is, increase memory. (Supplement of vitamin a can prevent night blindness because vitamin a plays a regulating role in the development of the eyes.) Zinc can promote the absorption of vitamin a. Vitamin a is stored in the liver when it is not working, and zinc is needed when needed To mobilize.

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