春大白菜优质丰产栽培的几项技术

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早春季节,气温由低到高,日照从短到长,适宜大白菜的生殖生长,而不利于其营养生长,再加上结球期田间温度高、湿度大,这就造成了春大白菜在种植中常出现先期抽薹、包心不实和病虫害严重等难题,为确保早春大白菜的丰产栽培,生产上应注意以下几点:一、选择合适的栽培品种品种间对低温的敏感程度有较大差异,品种选择是关系到种植成败的关键。生产上应选择冬性强、不易春化、生育期短(50~60天)、包心早、灌心快、耐热抗病品种,山东地区一般可选用天正春白一号、春秋王、强势、阳春等。 Early spring, the temperature from low to high, sunshine from short to long, suitable for reproductive growth of Chinese cabbage, but not conducive to its vegetative growth, coupled with the field temperature during the cotting field, humidity, which caused the spring cabbage in Planting often appear early bolting, unhealthy and serious pests and diseases and other problems, in order to ensure high-yield cabbage cultivation in early spring, the production should pay attention to the following points: First, select the appropriate varieties of cultivars have a greater degree of sensitivity to low temperature Differences, variety selection is the key to the success of planting. The production should choose strong winter, not easy vernalization, short growth period (50 ~ 60 days), early heart Baixin, filling fast heart, heat-resistant varieties, Shandong Tian Tian Chun Bai generally available on the 1st, the Spring and Autumn King, Strong, spring and so on.
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