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大白菜是山东省最重要的蔬菜之一,栽培面积大,产量高,耐贮运,供应期长,特别是大白菜一代杂种的广泛应用,为提高大白菜的品质和产量起到了积极作用。但有关杂交制种大白菜施肥技术的研究不多,栽培中大多沿用一般蔬菜的施肥方法,影响了种子的产量和品质。为此,我们进行了杂交制种大白菜吸肥规律研究,以期为大白菜制种中的科学施肥提供依据。一、杂交制种大白菜的吸肥规律以鲁白7号大白菜双亲自交不亲合系为试材,设地膜覆盖栽培(简称覆膜)和露地栽培(对照)两个处理,试材3月20日定植,株行距为45cm×50cm,每亩约栽种2500株,父母本比例为1:1。全部肥料一次性基施。
Chinese cabbage is one of the most important vegetables in Shandong Province. It has a wide range of cultivation areas, high yield, storage and transportation, long supply period, especially the first generation of Chinese cabbage hybrids, which play a positive role in improving the quality and yield of Chinese cabbage. However, there are not many researches on fertilization techniques of Chinese cabbage for hybrid seed production. Most of the cultivation practices follow the fertilization method of common vegetables, which affects the yield and quality of seeds. To this end, we conducted a study on the law of hybrid seed cabbage absorption in order to provide a basis for scientific fertilization in Chinese cabbage seed production. First, the hybrid seed cabbage law of absorption of fertilizer to Chinese cabbage white male parent Lu80 self-incompatibility as the test material, covering the cultivation of plastic cover (referred to as plastic film) and open-field cultivation (control) two treatments, March 20 colonization, plant spacing 45cm × 50cm, planting about 2500 per acre, the proportion of parents 1: 1. All of the one-time fertilizer base facilities.