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1981年近郊区7.6万亩大白菜在连续干旱、自然条件在十分不利的条件下获得亩产净菜接近1万斤的较好收成主要经验是:一、选用丰产抗病一代杂种和地方良种是大白菜稳产、高产的先决条件。郊区生产上应用的大白菜地方良种很多,如拧心青、包头青、小青口核桃纹、青白口等。一九七六年以来又陆续推广了一些抗病丰产的一代杂种。如北京4号、88号、97号、106号、双青156、怀拧×2039—5、碧玉等。如何选用这些品种,首先要了解清不同品种或杂交种的特性,因地制宜地选用既能抗病、丰产,又能适合本地土壤、水肥条件的品种,才
In 1981, 76000 mu of Chinese cabbage in the suburbs were in continuous drought and the natural conditions were under unfavorable conditions. The main experience of close harvest of nearly ten thousand jin per mu was as follows: First, the selection of high-yielding disease-resistant hybrids and local varieties is large Cabbage stable yield, the prerequisite for high yield. Suburban cabbage production on the application of many local varieties, such as unscrupulous, Baotou Qing, Xiaoqing mouth walnut pattern, such as Qingbaikou. Since 1976, some generation-specific hybrids with high yield of disease resistance have been popularized one after another. Such as Beijing No. 4, No. 88, No. 97, No. 106, Shuangqing 156, Huoxing × 2039-5, Jasper and so on. How to choose these varieties, we must first understand the characteristics of different varieties or hybrids, according to local conditions both disease resistance, high yield, but also suitable for local soil, water and fertilizer conditions of the species before