July is the golden period of summer management of Yangmei County in our county. The timely management of the management of Yangmeishu in this period can serve as a link between the past and the next, which will make the Yangmei stable and high quality.
1 timely fertilization
July is the period in which the oxygen consumption of Yangmei tree in our county is the largest in the year. It is necessary to apply good post-harvest fertilizer in time. Fertilizers are dominated by potash fertilizer. Generally, 50kg of bayberry plants are planted with 15kg to 20kg of plant ash, 4kg of rapeseed cake and 1.5kg of potassium sulfate.
2 The cultivating cover and grass combined with fertilization, the cultivating depth is 5~10cm. The cultivator can change the soil compaction caused by the rain under the canopy, the foot pedal, enhance the water storage and fertilizer capacity of the soil, and improve the tree's resistance to drought, which is very favorable for flower bud differentiation.
3 Trimming of buds For the normal results of bayberry, it is advisable to use the “extensive†summer pruning method, in particular to remove irrational (ie, nutrient-losing) branchlets, cross-branches, and pests and branches. The principle of pruning is to allow the trees to be airy and clear, but also to ensure that the bayberry leaves perform photosynthesis. For Yangmei trees that have been highly grafted and changed for the year, the living scions are entering the fast-growing stage, and germination below the grafted site should be promptly erased to avoid excessive sprouting and overgrowth on the rootstock and affect the growth of the scion; If the newly-changed bayberry tree has been modified, if it has already been used to cut more new shoots, it is necessary to cut off the excess, upright new shoots in time, properly preserve the new shoots with better spatial positions, cultivate the results, prepare branches, and increase the volume of three-dimensional results. .
4 Chemically modulating the critical period of flower bud differentiation of bayberry (ie, after Fruit picking), timely and effective chemical regulation is one of the key measures for high quality and stable production of bayberry. After harvesting the fruits of bayberry, the red bayberry should be sprayed with the flowering nutrients in time to promote its flower bud differentiation and nutrition of the tree body and increase the yield of the following year (ie the young year). After the young fruit of the bayberry is collected, the red bayberry should be sprayed. Flower reducers are used to inhibit the differentiation of flower buds, thereby reducing the number of flowering and fruiting results in the leap year (ie, the big year).
5 Prevention of pests and diseases After harvesting fruits, Yangmei trees should prevent and control various pests and diseases timely. Myrica rubella can be treated with 60% mancozeb 600 times or 70% thiophanate-methyl 800 times or 50% carbendazim WP 500 to 600 times; scarab, bag moth pests can use 48% poison The death of the 1000 ~ 1500 times liquid prevention; maggots nymphs can be from the beginning of late July, with 40% speed cull EC 1500 times or 25% flumethasone 1500 times liquid control, spray every 10 days 1 Times, a total of 3 times; Tianzhu larvae can be controlled by artificial killing; æ§ blackflies can be used 10% imidacloprid WP 3000 times or 40% Rochelle 1500 ~ 2000 times spray control.
1 timely fertilization
July is the period in which the oxygen consumption of Yangmei tree in our county is the largest in the year. It is necessary to apply good post-harvest fertilizer in time. Fertilizers are dominated by potash fertilizer. Generally, 50kg of bayberry plants are planted with 15kg to 20kg of plant ash, 4kg of rapeseed cake and 1.5kg of potassium sulfate.
2 The cultivating cover and grass combined with fertilization, the cultivating depth is 5~10cm. The cultivator can change the soil compaction caused by the rain under the canopy, the foot pedal, enhance the water storage and fertilizer capacity of the soil, and improve the tree's resistance to drought, which is very favorable for flower bud differentiation.
3 Trimming of buds For the normal results of bayberry, it is advisable to use the “extensive†summer pruning method, in particular to remove irrational (ie, nutrient-losing) branchlets, cross-branches, and pests and branches. The principle of pruning is to allow the trees to be airy and clear, but also to ensure that the bayberry leaves perform photosynthesis. For Yangmei trees that have been highly grafted and changed for the year, the living scions are entering the fast-growing stage, and germination below the grafted site should be promptly erased to avoid excessive sprouting and overgrowth on the rootstock and affect the growth of the scion; If the newly-changed bayberry tree has been modified, if it has already been used to cut more new shoots, it is necessary to cut off the excess, upright new shoots in time, properly preserve the new shoots with better spatial positions, cultivate the results, prepare branches, and increase the volume of three-dimensional results. .
4 Chemically modulating the critical period of flower bud differentiation of bayberry (ie, after Fruit picking), timely and effective chemical regulation is one of the key measures for high quality and stable production of bayberry. After harvesting the fruits of bayberry, the red bayberry should be sprayed with the flowering nutrients in time to promote its flower bud differentiation and nutrition of the tree body and increase the yield of the following year (ie the young year). After the young fruit of the bayberry is collected, the red bayberry should be sprayed. Flower reducers are used to inhibit the differentiation of flower buds, thereby reducing the number of flowering and fruiting results in the leap year (ie, the big year).
5 Prevention of pests and diseases After harvesting fruits, Yangmei trees should prevent and control various pests and diseases timely. Myrica rubella can be treated with 60% mancozeb 600 times or 70% thiophanate-methyl 800 times or 50% carbendazim WP 500 to 600 times; scarab, bag moth pests can use 48% poison The death of the 1000 ~ 1500 times liquid prevention; maggots nymphs can be from the beginning of late July, with 40% speed cull EC 1500 times or 25% flumethasone 1500 times liquid control, spray every 10 days 1 Times, a total of 3 times; Tianzhu larvae can be controlled by artificial killing; æ§ blackflies can be used 10% imidacloprid WP 3000 times or 40% Rochelle 1500 ~ 2000 times spray control.
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