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1954年春我们在大连砂岗子生产实习时,见到李启山互助组生产的牛心甘蓝,比一般早熟1—2周,在5月28日收获时,叶球重达1.2—1.5斤,而一般老乡地里的叶球仅重8—9两。现将其经验介绍于后。李启山互助组在1日24日将已催芽的种子,播种于立壕中,床土于头年11月施好马粪。至翌年2月13日有2个真叶时移植,株行距2.7×2.7寸,移植后隔10天喷水一次。至3月下旬加强放风锻炼,3月
In the spring of 1954, when we internship in Sandanggang, Dalian, we saw the beef of Brassica oleracea produced by Li Qishan Mutual Aid Team, 1-2 weeks earlier than usual. At the time of harvesting on May 28, the weight of leafball was 1.2-1.5kg, The ball in the weight of only 8-9 two. Now introduce its experience in the post. Li Qishan Mutual Aid Group will have germinated seeds on the 24th of the 1st and will sow in the trenches. Bed soil will be used for horse manure in the first year in November. To February 13 the following year, there are 2 true leaf transplants, spacing of 2.7 × 2.7 inches, after spraying water spray once every 10 days. By the end of March to strengthen the wind exercise, in March