在全国农业学大寨的高潮中,科学种田的群众运动正在蓬勃发展。为了夺取稳产高产,做好农田基本建设的规划,制订土壤改良措施的方案,合理分配肥料的种类和用量,掌握施肥的适宜时期和方法,以及搞好管理作物、管理土壤和利用土壤的工作,都需要对土壤和作物的营养状况和障碍因素及时进行诊断。所以,土壤和作物诊断的生产针对性是很强的。土壤和作物诊断必须在党的一元化领导下,以阶级斗争为纲,立足于生产,扎根于群众,坚决依靠广大贫、下中农,充分发挥科技人员的作用,针对生产中的问题,做好试点示范和普及工作。诊断工作包括两个 In the climax of the national agricultural science Dazhai, the mass movement for scientific farming is booming. In order to seize stable and high yield, do a good job in the planning of farmland capital construction, formulate plans for soil improvement measures, allocate types and amounts of fertilizers rationally, grasp suitable periods and methods of fertilization, and do a good job in managing crops, managing soil and using soil, All need timely diagnosis of soil and crop nutritional status and barriers. Therefore, soil and crop diagnosis is highly targeted. Soil and crop diagnosis must be based on the party’s unified leadership, take class struggle as the key link, base on production and root in the masses, and rely firmly on the vast number of poor and middle peasants to give full play to the role of science and technology personnel. And popularize the work. Diagnostic work includes two