I. Irrigation
Cabbage is a vegetable that requires more moisture and must be irrigated many times during cultivation. According to the different water requirements during the growth period, it can be divided into the seedling stage, the rosette stage, and the ball stage irrigation.
1. Seedling irrigation: Generally, when sowing, it is necessary to re-irrigation. After emergence, in addition to raising winter alfalfa, it is necessary to irrigate frozen water before freezing. When seedlings are to be subdivided, water should be poured and the seedlings should be filled. Irrigation and digging of seedlings is a valuable experience for our country's vegetable farmers to control the seedlings of the seedlings with irrigation.
2. Irrigation during the rosette period: When the seedlings are planted, they are light-irrigated for 1 to 2 times and then controlled for irrigation and seedlings. Control time, early maturing varieties should not be too long and too heavy, generally 10 to 15 days is appropriate, medium and late varieties are longer, about 1 month or more. From the cultivation season, the growth speed of spring and autumn cabbage should be short and the growth of winter cabbage can be controlled slowly. The control of irrigation during the rosette period requires not only mastering a certain degree of soil moisture, giving the rosette leaves a sufficiently large assimilation species, but also controlling the water content not to be too much, forcing the internodes of the short shortening stems to be short, and thus being able to bind the ball closely. solid. Avoid excessive seedlings, so as to avoid short and small leaves, affecting yield. When the end of the rosette begins to weigh, it should be re-irrigated.
3, the ball period of irrigation: from the ball, such as re-irrigation, the ball growth speed, the need for more water, water indispensable according to weather conditions. Generally, every certain number of days, when the ground is dry, it should be re-irrigated. After the leaves are compacted and they begin to harvest, they should be re-irrigated.
Second, cultivator, soil and weeding
After the cabbage seedlings were planted, they were irrigated with light water for 1 or 2 times, ie, cultivating, digging, and seedlings. Generally, early-maturing varieties should be cultivated 2 to 3 times, and medium and late-maturing varieties should be 3 to 4 times. The first cultivating should be deep, and the cultivars must be fully penetrated and smoothed so as to facilitate the growth and promote root growth. After the cultivator enters the rosette stage, it should be shallow. Soil around the plants to promote short-throwing stems, more roots, beneficial to the ball. Before unsealed ridges, remove the weeds with the cultivator, and after the ridges are enclosed, we should remove them at any time if there is any weed, so as not to affect the growth and pest transmission.
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