Clam shells are commonly used in large quantities, mainly in the form of lime, fragrant, and generational. Clam shell sweet, slightly cold, there are broken gas, sputum, scattered, eliminate phlegm and other effects, attending the chest and abdomen full of sorrow and pain, food, not full, suffocating, stomach pain, stomach drooping, sipping, etc. Symptoms, today Xiaobian said that the clam shell planting technology and its pest control measures are as follows.
First, planting technology
1. Site selection: Select a plot of citrus seedlings that has not been planted for 2~3 years as a seedbed. Before planting, the soil will be ploughed and leveled, and 667m 2 will be applied with 1000kg of composted manure or compost, and then fully fined and flattened. , for a height of 1.3m sorghum sowing. Planting land can be selected from flat land, hilly land or gentle slope mountain, and the land preparation will be carried out in the year before planting.
2, colonization
It can be planted in spring and autumn. Dig a hole at a row spacing of 3m × 2m (111 plants / 667m 2 ), and apply 25 kg of composted manure or compost at each hole. Then choose a windless cloudy sky or a sunny day after the rain, carefully pick up the seedlings that are healthy and disease-free, and plant them into the wells that have been dug. One plant is planted in each hole, and the root water is poured after planting.
3, cultivating weeding
After planting, weeding and weeding once every year in spring, summer and autumn, and once every year in spring and summer after foresting, to avoid grass shortage.
4, top dressing
The saplings are combined with cultivating, weeding and topdressing three times a year, mainly to fertilize manure and manure to promote the extraction of new shoots; after entering the result period, the fertilizer is applied 4 times a year, and the first time is applied to spring fertilizer from February to March. The plant is applied with 50 kg of decomposed human and animal manure or 0.5 kg of urea to promote flower bud differentiation and spring shoots. After the second physiological drop, the fruit fertilizer is applied in early June, and each plant is applied with NPK fertilizer 250g. Left or right, or use 0.5% urea + 0.3% potassium dihydrogen phosphate. After the third fruit harvest from July to August, each plant was given 100kg of human and animal manure + 100g of urea + 2kg of superphosphate, which prompted the extraction of autumn shoots. The fourth time in the winter, heavy application of wax fertilizer, each plant applied with composted manure or compost 100kg + 2kg of superphosphate, can restore the tree potential, enhance the cold resistance of the tree, and lay the foundation for the high yield of the next year.
5, irrigation and drainage
During the southern Meiyu season from June to July, attention should be paid to dredging and drainage to prevent roots and fallen flowers from falling due to stagnant water. In the dry season, watering should be carried out in time to protect the seedlings. When hot and dry weather occurs, water should be poured once.
6, the trunk brush white paint
Before the winter, use the coating agent of 7kg of quicklime, 1 part of stone sulphur mixture, 1 part of salt and 15 parts of clear water to protect the bark and prevent pests and diseases.
Second, pest control measures
1. Poor foot disease: pay attention to drainage and dry root before the onset of illness; if it has already occurred, the disease should be partially removed, and the incision should be coated with Bordeaux mixture of 1..1..16, and then sprinkle some fresh cow dung.
2, scab disease: before germination, after the flowering, each spray 0.5..1..100 Bordeaux mixture; the diseased shoots, fruits should be harvested early.
3, bituminous disease: pruning branches, improve permeability; timely control of pests such as scale insects; pay attention to drainage, reduce the humidity in the park.
4, ulcer disease: reasonable trimming of dead branches, diseased branches, diseased leaves, improve the transparency of the canopy ventilation; before the spring buds sprout or when the flower buds are white and after the flowers, spray 1..1..200 Bordeaux mixture, pumping Spray 2~3 times on new shoots; spray 2°Be stone sulphur mixture 1~3 times in winter to early spring.
5. Scale insects: In the young age, spray with 50% trisulfide 3000 times solution or 50% phosphorus amine 1000 times solution.
6, Tianniu: After the Qingming, brush the trunk with lime to prevent adult eggs from spawning. After the occurrence of the beetle, it can be mixed with trichlorfon powder, lime and tung oil and stuffed into the wormhole to seal the larva with mud.
7. Aphids: Spray with tobacco lime soap or pyrethrum soap.
8, citrus swallowtail: artificial capture; younger period spray 90% trichlorfon 800 times liquid.
9, red spider and rust spider: spray with stone sulfur mixture, every 15 to 20 days.
Millet Pepper,Red Hot Chilli Pepper,American Red Chilli Pepper,Millet Pepper Flavor Fresh
Sichuan Liuhang Agriculture Co.Ltd , https://www.lhagriculture.com