论文部分内容阅读
甜菜纸筒育苗是近几年从国外引进的一项新栽培技术,增产作用已为众所周知,增产幅度却说不一,大到增产百分之几十,小到增产百分之几。因其成本费用较高,如何发挥纸筒育苗的增产潜力,获得低成本、高效益,则是目前人们所关注的。 我市自1983年引进此技术,试验示范结果表明,增产不明显。考虑可能与施肥水平有关。在1983年试验示范基础上,1984年又搞了300亩纸筒育苗移栽,并且在有代表性黑土区,以当地生产实际施肥水平为下限,方案要求施肥水平为中限,搞了3.5亩不同处理试验示范。
Beetle tube seedling raising is a new cultivation technique introduced from abroad in recent years. The effect of increasing yield has been well known. The yield increase is not the same, ranging from tens to tens of percent of the yield increase and from a small percentage to a few percent. Because of its high cost and cost, how to develop the yield potential of paper tube seedling raising and obtaining low cost and high efficiency is the current concern. Since 1983, our city has introduced this technology, demonstrating the results of experiments and demonstrations that the yield increase is not obvious. Consideration may be related to fertilization levels. On the basis of the experimental demonstration in 1983, another 300 mu of paper tube seedling transplanting was carried out in 1984, and in the representative black soil area, the actual production level of the local production was the lower limit, and the program required the fertilization level to be the medium limit, with 3.5 mu Demonstration of different treatment experiments.