Summer cultivation management technology
In order to achieve high yields in the coming year, after the fruit picking is completed, it is necessary to continue management in terms of pest control, fertilization, pruning and the like.
1. Eliminate dense trees. The eucalyptus is too dense, which often leads to insufficient sunlight inside the cockroach, poor ventilation, serious pests and diseases, and many dead branches inside and below. The tree nutrients and water transport are not smooth, making the upper branches of the tree less and weaker, and the tree is weak. And so on. Therefore, it is necessary to excavate a part of the eucalyptus planted in the densely planted garden, and finally it is better to reach a row spacing of 56 m2.
2. Trim. Due to the high-density plantation of the garden, the whole tree is extended upwards and weak, which is not conducive to the pest control of the eucalyptus and the fruit thinning, bagging, and picking operations. Therefore, after picking the capsules, the center of the eucalyptus can be dried at a low position, and the other parts of the main trunk can also be removed with a hand saw. This can significantly reduce the entire tree body and facilitate the ventilation and light transmission of the tree body. In order to promote the summer shoots, it is possible to make the tree bloom in the same year, because the summer shoots of the dragonfly are good results for the coming year. Moreover, due to the reduction of the entire tree body, the transportation distance of nutrients and water is shortened and unblocked, which is conducive to the restoration of tree potential and increase resistance to pests and diseases.
3. Fertilization. After the tree has been removed and trimmed, the tree must be supplemented in terms of nutrition, that is, after the fruit picking and the summer shooting period, about once every two months, the principle of thin fertilizer is applied to the quick-acting fertilizer and Combined with delayed fertilizer, the amount of fertilizer applied accounts for about 50% of the annual fertilization amount. For example, 0.5-1 kg of compound fertilizer can be applied per plant, and the application or excavation should be applied. The purpose is to restore the tree potential and promote the healthy growth of the summer shoots and the good flower bud differentiation.
4. Pest control. There are not many pests and diseases, mainly æž‡æ· leaf spot and yellow caterpillars. It is recommended to conduct an integrated prevention every 1 month. The drug can be used with carbendazim 500 times solution or thiophanate 600 times solution + dichlorvos 800 times solution or imiprazole 1 package (per sprayer) + 0.5% urea + 0.3% potassium dihydrogen phosphate.
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