The suitable time for high-yielding citrus varieties is from early March in spring to early April, from autumn in September to mid-November. After the high-yield varieties of citrus, we must pay attention to the management of the next, mainly to do the following 9 things: 1, check the survival rate. After 15 days of grafting, the survival rate of grafting was checked. In the case of dead buds or buds that sprouted but did not grow, they had to be patched or cut off. 2. Remove the storage bag. When the buds were 1 cm long after germination, the anvils and spikes were removed to store the bags. 3, timely solution film. Shoots of 8 to 10 shoots of new shoots are combined with a single-use film toss. 4, except Meng. Remove the anvil buds within 15 to 20 cm from the bud. The lower anvil buds are generally kept as supplementary branches, except for long branches. 5, take heart shape. Through topping, promote branching, early formation of the crown, when the spring tip length of about 20 cm, leaving 5 to 6 leaves topping, each spring tip can send 3 to 4 summer shoots, in early August, mid-summer will stay 6-8 leaves again picked up the heart to promote autumn shoots. The tip of the late autumn, that is, after August 20, is erased. 6, timely fertilization. Mastering the spring shoots after picking the heart, when the summer shoots germinate at about 10 cm, and when the autumn shoots are germinated, they each apply thin fertilizers, and each plant applies 50-100 g urea (the autumn shoot fertilizer plus 50 g of sulfur-sulfur compound fertilizer) can be grown on the canopy. 20 cm outside the drip line (the third autumn shoot fertilizer can be under the drip line) open shallow ditch buried. 7, trunk Sokcho. In the middle and late May, cover the exposed parts of the trunk and main branches with straw to prevent sunburn from damaging the trunk. 8, tree cover. Covered with straw, weeds, canola shells, etc., the thickness of 10 to 20 cm. 9, pest control. When sprouting a grain of rice for a long time, it controls aphids and anthracnose; Xiaqiu shoot grows 1 grain of rice for a long time and prevents leafminers; at the young leaf stage, it pays attention to prevent and control swallowtail butterfly; from September to October, it pays attention to control of red spider; In the local area, it is necessary to use the first medicine after cutting the shoots, and then use it again 7 to 10 days, and use them 2 to 3 times.
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