Fertilizer Pan ear fertilizer. Generally in the big bell mouth re-application of nitrogen fertilizer, accounting for 50% of the total amount of topdressing, topdressing 30-40 kg of standard nitrogen fertilizer per acre. Granular fertilizer. Generally account for about 10% of the total fertilizer, topdressing 10 kg of ammonium bicarbonate per acre. When fertilizing, open a 10-15 cm wide groove at a distance of 10 cm from the plant. The depth of the groove is 9-12 cm. After the fertilization in the trench, cover the soil with water. Pest control The corn ear during the ear stage can be used in the big bell-mouth period, with 3% phoxim granules per acre 1.5-2 kilograms and fine sand 5-6 kilograms, or 50% phoxim EC formulated as a 0.1% dose poison. Mix the soil in corn leaves. Control of corn leaf spot, sprayed with 50% carbendazim 500-800 times; control of corn rust and brown spot, at the beginning of the disease with 20% triadimefone EC 75-100 ml of water spray. Detached corn The emasculation can reduce the nutrient consumption and promote the development of the ear; reduce the plant height, improve the ventilation and light transmission conditions, and enhance the resistance to lodging; overcome the phenomenon of flowering and detachment of the male and female ears, is conducive to the flowering period and increase the seed setting rate; and reduces the damage of the locusts. Going to master a good time, to go early to operate difficult, and tassels are too tender, easy to pull off or bring out the heart and leaves; too late to consume too much nutrients, increase production is not significant. The appropriate period for detasseling is that the tassel draws about one-third to one-half of the heart's leaves. At this time, it can be squeezed and can be pulled out with a little force. It is better to work from 9am to 4pm on sunny days so that the wound will heal easily. The number of emasculated plants generally accounts for about one-third of the total number of plants in the field, and no more than one-half of the total number. Generally, the number of detassels is emasculated. The two lines on the ground and the two plants in the ground should not be emasculated so as not to affect pollination. After detasseling, it is better to use combined pollination. Soybean lecithin is a natural substance that is derived from soybeans. It is a type of phospholipid, which is a molecule that is composed of two fatty acids, a phosphate group, and a nitrogen-containing base. Soybean Lecithin,Feed Supplement Soy Lecithin Powder,Professional Soybean Lecithin,Organic Soy Lecithin Powder Jiangsu Chenwei Biology and Technology Co. LTD , https://www.cwsoybean.com