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八·五以来,国家科委和河北省科委会同有关大专院校与农业科研单位在国家旱作农业试区张北县试验区利用当地资源优势,采用中、早熟品种交叉种植,优势互补,错季生产,开展了冀西北高寒干旱区高产高效间套种植技术研究。结果表明,不但提高了该区土地利用率,且增加了单位面积产量和产值,实现了产量、产值比单作成倍增长,现就研究进展初报如下: 一、豌豆间套马铃薯 1.套种的成败,关键是品种的选择。豌豆选用极早熟品种“A716”,马铃薯选用早熟品种“丰收白“和中熟品种“坝薯九号”、“金冠”。 2.与豌豆套种的马铃薯种薯须贮藏在
Since August 5, the State Science and Technology Commission and the Hebei Provincial Science and Technology Commission, together with relevant tertiary institutions and agricultural research institutes, have used the advantages of local resources in the experimental area of Zhangbei County in the national dry farming pilot area, crossed the medium- and early-maturing varieties, Stagnant season production, carried out in northwestern arid area of Hebei high yield and high efficiency intercropping cultivation techniques. The results show that not only improve the land utilization rate in this area, and increase the yield per unit area and output value, to achieve the output, output value doubled than single, now the research report is as follows: First, Success or failure, the key is the variety of choices. Pear selection of very early varieties “A716”, potato selection of early varieties “harvest white” and medium-maturing varieties “dam potato 9”, “Golden Delicious.” Potato seedlings interplanted with peas shall be stored in