水稻氮素调控技术(以下简称氮调)在广东大面积推广的消息传开后,引起我国土肥工作者的广泛兴趣,我国主要稻作区几乎都引进这项技术进行试验示范。这项技术是我国农民“看天、看地、看庄稼”施肥经验科学总结的尝试。着重研究两个问题:一、千斤 Rice nitrogen regulation (hereinafter referred to as nitrogen transfer) spread in Guangdong after a large area spread, causing widespread interest of soil and fertilizer workers in China, almost all of our country’s major rice planting area to introduce this technology for demonstration. This technology is our country farmers “look at the sky, look at, see crop” fertilization experience scientific summary attempt. Focus on two issues: First, a thousand pounds