论文部分内容阅读
2008~2010年连续3 a在新疆石河子地区以高产高油早熟大豆新品种“中黄35”为载体,采用大豆覆膜滴灌结合水肥同步的高产栽培技术,创造了小面积产量超6 000 kg.hm-2,大面积产量超4 500 kg.hm-2的全国大豆高产纪录;通过将肥料精确地随水滴入大豆根系区域,减少了肥料的挥发和渗漏损失,将水产比提高至1∶1.25~1∶1.32;氮肥利用率提高至20%~25%,磷肥利用率提高至5%~10%,实现了大豆田水肥藕合关键技术的突破;另外,通过化学调控技术的运用,实现了光、热、水、土资源的有效利用,达到高产高效和优质的目的。该项技术对提高我国的大豆单产和增加总产,起到了有力的科技支撑和示范作用。
2008 ~ 2010 3 consecutive years in Shihezi area of Xinjiang to high-yielding high-oil and early maturing soybean new varieties “Zhonghuang 35 ” as the carrier, the use of soybean film drip irrigation combined with high-yielding water and fertilizer cultivation techniques to create a small area yield over 6 000 kg.hm-2, a large-scale national record of soybean yield exceeding 4 500 kg.hm-2; reducing the volatilization and leakage losses of fertilizers by accurately dripping fertilizer into the root system of soybean with water, increasing the ratio of aquaculture to 1: 1.25 ~ 1: 1.32; nitrogen utilization rate increased to 20% ~ 25%, phosphorus fertilizer utilization rate increased to 5% ~ 10%, to achieve a breakthrough in key technologies of water and fertilizer coupling soybean; In addition, through the use of chemical control technology, Realized the efficient use of light, heat, water and soil resources to achieve the goal of high yield, high efficiency and high quality. The technology has played a powerful scientific and technological support and demonstration role in raising soybean yield and increasing total output in our country.