在黑龙江桦南五道岗乡的千亩方示范基地，一款新式的气吸式播种机提升了播种的速度和精度。在种植技术上，秋整地时种植户便将70%的秸秆深埋地下， 秸秆还田成肥料，增加土壤肥力。 曙光农场有限公司农业社会化服务总站站长 牛真：地块主要推广大垄密植栽培模式，采用的技术包括秋整地、秋起大垄、早中耕等13项农业技术。运用这 些技术，能够有效提高作物产量，预计每亩增产50斤左右。 当前，我国夏季粮油的主要作物冬小麦进入灌浆期，冬油菜开始收获，玉米、水稻等作物春播进入高峰，各地结合自身特点，积极开展农业生产。 东北地区春播进入高峰期 在东北地区，目前春播粮食已近三成，各地通过推广高性能播种机，助力春耕生产提质增效。 目前，全国冬小麦开始大面积收获，数据显示，今年，我国冬油菜面积稳中有增，达到1.1亿亩。 今年江西省油菜播种面积900多万亩，由于前期气温比常年偏高且土壤墒情较好，油菜长势普遍较好。 田间收获忙 湖南沅江50多万亩油菜迎丰收 在江西抚州崇仁县孙坊镇的一个合作社，近200亩冬油菜正在收割。今年合作社按照江西省推广的"稻稻油"轮作模式，利用冬闲田种植油菜新种，不仅让农 田实现"一田三收"，同时配套良种、良法、良机，油菜 ...

Group 1 - The article highlights the critical period for grain production in China, particularly in Hunan province, where farmers are engaged in spring plowing and management activities [1][3] - The "rice-oil rotation" farming model is being utilized, where oilseed rape is planted in winter and rice in summer, allowing for better land utilization and nutrient provision for subsequent crops [3][5] - The current oilseed rape harvest is expected to yield increased production per acre due to favorable weather and farmland improvements [7][13] Group 2 - Mechanization in agriculture is emphasized, with the use of advanced machinery such as unmanned drones for fertilization, which enhances efficiency and reduces labor costs [11][13] - The area under "rice-oil rotation" in Xiangxiang City is approximately 150,000 acres, with the busy farming season extending until mid-May [13] - The article also mentions the use of technology in other regions, such as the deployment of drones for wheat production in Shandong and smart planting machines in Gansu, showcasing a trend towards increased efficiency in agricultural practices [14][17]