Although summer irrigation is a season in which there is a lot of rain, unstable weather, such as first drying, first drying, and late drying, tends to occur. Therefore, the seedlings should be timely irrigated during the drought stage. Seedlings in the fast-growing period of the seedlings should adopt a large number of methods, and each time they should be thoroughly filled with irrigation. In the late growth stage of seedlings, in addition to encountering particularly dry weather, irrigation is generally not required. All the ditch supporting systems of the nursery must be excavated well before the rainy season arrives, so as to timely drain the water and ensure the normal growth of seedlings. When the nursery is affected by floods and floods, it is necessary to clear the ditches in time to eliminate waterlogging and sludge debris, and timely arrange the seedlings and seedlings so that the direct water and dark water will flow straight down until the seedlings resume their vigor and weeding and uncultivation. .
Weeding often occurs in nurseries in summer, and weeding and loosening should be performed after each irrigation or rainfall. Weeding should master the principle of "except early, small, and except". The loose soil should be gradually deepened and fully loosened to ensure that it will not hurt the seedlings and will not press the seedlings. Spread seedlings are not easy to loosen the soil, and the weeds can be removed from the seedlings. A layer of fine soil is spread on the surface of the seedbed to prevent the roots from being ventilated and affect the growth of seedlings.
Some tree species with budding control, due to factors such as climate, soil, and genetics, have side roots in lateral shoots at the seedling stage, which is not conducive to the cultivation of strong seedlings. Therefore, it is necessary to timely pick buds and shoots in order to control less lateral roots and improve the quality of seedlings.
In the summer of fertilizer application, quick-acting fertilizers can be applied to the rows of seedlings. The depth of the ditch should be appropriate. Fertilizer should be applied in the ditch and then covered with soil. Top dressing should be carried out when the seedlings are growing lateral roots, and should be carried out after 3 pm. Pay attention not to put concentrated fertilizer on the young shoots of the seedlings when fertilizing. According to the timing of topdressing of different seedling varieties, conifers generally stop growing fertilizer 30 days before the top of seedlings; broadleaf species should be topdressed before the beginning of autumn.
Prevent pests With the growth of seedlings, pests and diseases will also be at any time infringement on seedlings. The pests and diseases of seedlings are generally based on prevention. The prediction and forecast of diseases and pests should be well done. The possible pests and diseases should be prevented and the diseases and insect pests that have already occurred should be promptly removed.
Weeding often occurs in nurseries in summer, and weeding and loosening should be performed after each irrigation or rainfall. Weeding should master the principle of "except early, small, and except". The loose soil should be gradually deepened and fully loosened to ensure that it will not hurt the seedlings and will not press the seedlings. Spread seedlings are not easy to loosen the soil, and the weeds can be removed from the seedlings. A layer of fine soil is spread on the surface of the seedbed to prevent the roots from being ventilated and affect the growth of seedlings.
Some tree species with budding control, due to factors such as climate, soil, and genetics, have side roots in lateral shoots at the seedling stage, which is not conducive to the cultivation of strong seedlings. Therefore, it is necessary to timely pick buds and shoots in order to control less lateral roots and improve the quality of seedlings.
In the summer of fertilizer application, quick-acting fertilizers can be applied to the rows of seedlings. The depth of the ditch should be appropriate. Fertilizer should be applied in the ditch and then covered with soil. Top dressing should be carried out when the seedlings are growing lateral roots, and should be carried out after 3 pm. Pay attention not to put concentrated fertilizer on the young shoots of the seedlings when fertilizing. According to the timing of topdressing of different seedling varieties, conifers generally stop growing fertilizer 30 days before the top of seedlings; broadleaf species should be topdressed before the beginning of autumn.
Prevent pests With the growth of seedlings, pests and diseases will also be at any time infringement on seedlings. The pests and diseases of seedlings are generally based on prevention. The prediction and forecast of diseases and pests should be well done. The possible pests and diseases should be prevented and the diseases and insect pests that have already occurred should be promptly removed.
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