【摘要】 对内蒙古河套灌区春小麦精量稀播亩产千斤生物学、生理学基础的研究结果表明，在高肥力土壤和高水肥管理的条件下，适当降低播量和基本苗，协调好个体与群体的矛盾，是春小麦高产栽培的主要发展方向；采用精量稀播并集约精细管理，走主蘖并重的道路，亩产量稳定可达到千斤左右。更多还原

【Abstract】 Study on biological, physilogical bases of 7500 kg grain per ha of precision drilling in spring wheat in Hetao irrigation area of Inner Mongolia were conducted .The results showed that it was main development tendency of highyielding cultivation in spring wheat that the precision drilling was used for solving the contradiction of singleplant and its population under highfertility soil and good irrigation management.The stable yield of 7500 kg grain per ha and good economic benefit could be obtained when precision drilling and precision management were used. The cultivation technique of precision drilling in spring wheat was also expounded in details.更多还原