Summer corn “simultaneous seeding fertilizer†can improve the accuracy of fertilization and fertilizer utilization, save time and labor, can greatly improve the efficiency of farming, and promote Miao Qi Miao, and then increase production. In the past two years, the sowing area of ​​seed fertilizers has become more and more popular. However, in the production of burning seedlings and even the destruction of the species, for this reason, to remind the farmers must pay attention. Applicable fertilizers Which summer corn are high nitrogen, high potassium, and medium phosphorus crops, nitrogen content in compound fertilizers should be above 26%. Fertilizer to use nitrogen, phosphorus, potassium, three elements of the compound fertilizer, preferably controlled release fertilizer, corn growth how much nutrients need to release, but also can reduce the burning and burning seedlings. The following are not suitable for seed fertilizer: (1) volatile and corrosive, easily smoked seeds and seedlings, such as ammonium bicarbonate; (2) containing free sulfuric acid and phosphoric acid, will cause damage to seed germination and seedling growth, Such as superphosphate; (3) urea can produce a small amount of biuret, if the content exceeds 2% will be toxic to the seed and seedlings; (4) potassium chloride contains chloride, ammonium nitrate, nitrate containing nitrate Ions have toxic effects on seed germination; (5) Uncooked farmyard fertilizers release large amounts of heat during the fermentation process, and are prone to burning roots, releasing ammonia and burning seedlings. The amount of fertilizer should be suitable if the corn can not be watered in time after sowing, and the amount of seed fertilizer sowing is generally not more than 50 kg/mu. If it can be watered in time and the spacing of the seed fertilizer is more than 7 cm, the sowing rate can reach 60-80 kg. mu. Fertilizers that are not suitable for “specially close†fertilization should be concentrated on the roots, which will lead to excessive salt concentration in the soil solution in the root zone, impeding the penetration of soil moisture into the roots and causing damage to the crops due to lack of water. Fertilizers directly applied to roots, especially nitrogen fertilizers, can cause excessive absorption of nutrients by the roots, even if the concentration does not reach the level of “burnt†crops. The stems and leaves are prosperous and prone to disease, lodging, etc., resulting in reduced crop yields. Fertilizer spacing is about 8-10 cm, up and down 5 cm, sowing depth is 4-5 cm, and the deepest is not more than 6 cm. More than 6 cm will cause no emergence or weak seedlings. Don't forget to pay attention to the soil moisture in the “headwaterâ€. When the weather is dry, cover the headwaters for 1-3 days after sowing to reduce burning and burning seedlings. At the same time, it is ensured that the sowing date will be advanced as early as possible to meet the requirements of the maize growing period and accumulated temperature. Appropriate application of nitrogen fertilizer if the former is wheat, and straw return field, generally 400-600 kg dry straw per acre, additional 10 kg of urea or 25 kg of ammonium bicarbonate, and maintain soil moisture about 20% . It is conducive to straw rot and seedling growth. When the straw is rotted, the microorganisms and seedlings compete for water to compete for fertilizer, and corn yellowing can also be reduced. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone Analog Intercom System,Analog System 4 Wire Video Doorbell,Video 4 Wire Intercom System,4 Wire Doorbell,4 Wire Doorbell Made In China Zhuhai Mingke Electronics Technology Co., Ltd , https://www.zhmkdz-electronics.com