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1幼苗移植栽培。采用10天左右的幼苗移植的栽培方法，节省育苗土地和劳力。2免耕移植栽培。应用免耕插秧机，省去耕翻、耕田工序，在灌水后的田块，直接进行插秧。3早春干田直播栽培。2─3月在呈现干燥状态的水田，直播方法播种，待出苗后再灌水管理。4应用无人直升飞机。利用?
A seedling transplant cultivation. Use about 10 days of seedling transplanting cultivation methods to save seedling land and labor. 2 no-tillage transplanting cultivation. Application of no-tillage transplanter, eliminating the need for tillage, farming processes, plots after irrigation, direct transplanting. 3 early spring dry field broadcast cultivation. 2-3 March in the dry state of the paddy fields, sowing live methods to be post-emergence irrigation management. 4 application of unmanned helicopters. use?