During the autumn harvest season, Zhao Baozhai, a major planter in Xiaoying Village, Dachang Town, West Coast New Area, Qingdao City, Shandong Province, is busy. Experts provide remote guidance and field management measures follow up to ensure a bountiful grain harvest. Shandong is an important grain producing area in China, with a total output of over 100 billion kilograms for 9 consecutive years and a breakthrough of 110 billion kilograms for two consecutive years. Autumn grain is the mainstay of grain production throughout the year. In order to achieve a bumper harvest of autumn grain, Shandong has organized the "Ten Thousand People Going to the Countryside, Stabilizing Grain Supply" agricultural technology promotion and service campaign, delivering the best technology to farmers. Wang Jingdong, Deputy Director of the Agriculture and Rural Department of Shandong Province, stated that by integrating efforts from good fields, varieties, laws, and systems, Shandong is confident in promoting the large-scale increase in autumn grain yield. Good farming methods, good seeds landing, stable and high yield grasping more accurately. "You see how well the corn and soybeans in the field are growing. After testing, the yield of corn per mu this year can reach 1100 kilograms, and the yield of soybeans per mu is estimated to be over 260 kilograms. The yield of autumn grain per unit area is full of confidence!" said Lu Tao, a villager from Lujia Village, Huihe Street, Jiyang District, Jinan City. Good farming practices drive increased autumn grain yield. Entering the 500 acre corn and soybean strip compound planting area in Lujia Village, rows of corn stalks hang plump corn ears, and the soybeans planted in the middle grow string after string of pods. The two crops grow alternately, one high and the other low. Li Xianjuan, from the Agricultural Technology Service Department of the Agriculture and Rural Bureau of Jiyang District, introduced: "We have promoted a 4:2 planting model for corn and soybean belt compound planting in Lujia Village, where 4 rows of soybeans and 2 rows of corn are intercropped, and the goal of 'basically not reducing corn production and increasing soybean harvest by one season' can be achieved by expanding and increasing light, shrinking plants and keeping them confidential, and applying quantitative fertilization. Since the beginning of this year, Jiyang District has implemented the strategy of" storing grain in the ground and storing grain in technology ", Carry out experimental demonstration of a new model of corn and soybean belt composite planting, focusing on improving the comprehensive grain production capacity. Wen Yang, the head of the Planting Department of the Agriculture and Rural Bureau of Jiyang District, said, "Next, we will continue to expand the area of corn and soybean belt composite planting, invite agricultural experts to provide on-site guidance, carry out relevant training, focus on improving large-scale and mechanized planting methods, and promote agricultural efficiency and income increase for farmers." Yang Jiutao, senior agronomist at the Shandong Agricultural Technology Promotion Center, introduced: On the basis of summarizing the practical experience of corn and soybean strip compound planting last year, Shandong has explored various planting models. This year, Shandong has focused on promoting three models: the 4:2 model has the best benefits, with an average increase of 173.4 yuan per mu; the 4:3 model has the highest acceptance of planting subjects; and the 6:3 model has good compatibility with existing agricultural machinery. "The excellent varieties have been planted, and autumn grain production is moving towards stable and high yield. In order to better adapt to the needs of compound planting, we have selected shade tolerant and lodging resistant soybean varieties to match with compact lodging resistant corn varieties. Soybeans are selected from mid to early maturing and high yielding varieties such as' Qihuang 34 ',' Hedou 33 ', and' Hedou 12 '. Corn is selected from varieties such as' Denghai 605', 'Liyuan 296', and 'Jingnongke 828', "said Yang Jiutao. Good varieties and good methods are matched, and the more you plant, the more confident you are. With the benefits of grain cultivation and government subsidies, the yield is high and the budget is high! "Lu Tao said. In this year's autumn grain production, Shandong's corn and soybean composite planting area has increased by 500000 acres, reaching over 2 million acres, with a significantly better growth than last year. The coverage rate of improved varieties has significantly increased this year