The land he cultivated decreased, yet he smiled. This seemingly contradictory event recently happened to Jiang Hongcai, a major farmer in Du'erbo'er Mongolian Autonomous County. In 2025, Lao Jiang provided agricultural technical services for over 1,600 acres of corn in the local area. By promoting protective farming technology for black soil, he successfully grew "ton-yielding fields" in the sandy and arid areas. This year, the land under Lao Jiang's service was reduced to 700 acres, but the over-sixty-year-old "old hand" smiled contentedly: promoting good farming methods, the power of one person is always limited, but now that the villagers are willing to work together, that is a rare good thing! It is another spring sowing season, and this simple yet passionate moving story is being played out everywhere on the land of Heilongjiang, jointly painting the most substantial and vivid backdrop of the largest agricultural province. The ten-year "long march" of a small agricultural machine During the spring sowing season, the demand in the agricultural machinery market is strong. Recently, in Taiping Village, Hehuli Town, Tangyuan County, Jiamusi City, Jiamusi Chengde Machinery Manufacturing Co., Ltd. is speeding up production to meet this year's agricultural machinery orders. "The spreader is a star product designed and developed by our company, and this year's order volume is around 400 units, already sold to Jilin, Liaoning, and other places." On this, the company's head, Hu Chengde, who is over 60, opened up to the reporter. He told the reporter that in recent years, the country has accelerated the improvement of the research, development, manufacturing, and application levels of "one large and one small" agricultural machinery equipment, with "small agricultural machinery research and promotion" being an area he is determined to break into. Hu Chengde is a farmer by birth, and early on, deeply feeling the intensity and low efficiency of manual land spreading, he decided to change this situation. He built a mechanical processing factory in the village and formed a research and development team. After more than ten years of technical research, Hu Chengde successfully developed an unmanned automatic spreader, making the previously heavy land spreading and fertilization work easy and efficient. He also obtained several national utility model patents for agricultural machinery for this. "Currently, our spreader has been updated to the sixth generation, achieving unmanned automatic precision spreading, and we have added an alarm function. The chassis has been upgraded from rolling to tracked, more closely meeting user needs. One standard greenhouse can now cultivate 100 trays of seedlings, effectively improving production efficiency," Hu Chengde said. Every positive feedback from customers encourages him: the dedication over these past few years has not been in vain. Two "harvest accounts" for a piece of farmland Around the Qingming Festival, spring sowing of grain crops has begun in various places. In Lequn Township, Shuangcheng District, Harbin City, 1,000 acres of barley and wheat have been sown recently. In 2025, a team of experts from the provincial agricultural science institute, relying on the technological strength of the national barley and Qingke industry technology system and the Heilongjiang wheat industry technology system, promoted and demonstrated the "silage barley and soybean intercropping model" here, achieving a double harvest from the same land: 100 acres of farmland first produced 200 tons of silage barley and over 40,000 pounds of soybeans. This year, according to farmers' needs, the experts upgraded this model: the first crop of barley is used to make silage feed, wheat is used to make flour, and the second crop continues to plant ultra-early maturing soybeans. "Our province is in a high-latitude cold area, and there is a reality of 'two seasons are insufficient, one season is excessive' in crop planting. The team's research direction is to make full use of existing natural conditions, achieve one growing season..."