When the amount of nitrogen applied to wheat exceeds a certain limit, it often fails to increase production but decreases production, even leading to deterioration of wheat quality. Therefore, under fertility conditions of more than 7,500 kg per hectare, 210-240 kg of pure nitrogen per hectare is required to achieve high quality, high yield and high efficiency. Regarding the proportion of nitrogen-based top-dressing and the top-dressing period, it is generally required that the bottom-dressing account for 1/2, and the top-dressing period should occupy l/2. 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 Black Flex Tape,Asphalt Repair Tape,Black Flex Seal Tape,Waterproof Bitumen Tape Kunshan Jieyudeng Intelligent Technology Co., Ltd. , https://www.jerrytapes.com