Mulberry seedlings are cultivated as loams with loam or sandy loam lands with flat terrain, irrigated conditions, and high soil fertility. In the morning and evening of the sunny day, the watering of the seedbeds was kept moist, and after about one week of seedling emergence, the cover was gradually removed.
When the seedlings grow two true leaves, the time between the seedlings, the distance between the seedlings to maintain 1 to 1.5 cm, seedlings grow 5 to 6 true leaves, the Dingmiao, seedling spacing 4 to 6 cm. 7 to 80,000 plants per mu.
After 5 true leaves, Mulberry sprouted vigorously and was the key to nurturing strong seedlings. In addition to watering and weeding, it should be applied twice. Each application of 5 kg of urea per acre nursery. In late August, fertilization is stopped to prevent seedlings from growing.
The seedlings are defoliated and the seedlings are raised before the soil is frozen. Note that the saplings that emerge from the seedlings should be immediately planted and stored. If grafted after thawing in the spring, it can be grafted with seedlings in the spring.
Fast-growing and dense planting of mulberry gardens No dry planting Mulberry gardens Planted 4000 plants per acre, spaced 70 centimeters apart, with a spacing of 25 centimeters. The planting method is adopted by planting trenches, ridging and burying soil, which is 3 cm higher than the junction of the roots and stems.
Cut seedlings and stems: cut 5 cm from the ground, leaving 3 branches in the year and cutting at this height each year.
Staying in the dry mulberry garden construction, it is difficult to collect leaves. At present, our province uses grafting to change into good varieties and establish a mulberry garden. The main grafting method is the outdoor bag connection method, grafting time in the middle of May.
Grafted rootstock with seedlings. The first step is to cut the rootstock. Select seedlings with a root diameter of more than 0.6 cm. Underneath the rhizomes, cut the skin smooth without lateral roots and cut into 45- to 60-angle hoofed slopes. The thick and long rootstock can be cut into 2 to 3 segments for use.
Scallops use varieties of Sangchun cutting mulberry, full of wood, winter buds full, no disease, collected 15 to 20 days before grafting. Under a full scion bud 1 cm below the knife, cut into 3 cm or so curved bevel, cut off the long part of the beveled head, and then in the left and right sides of the noodles about 2/3, cut a knife, so that the phloem and formation The layer emerges from the slope and finally cuts at 1 cm above the bud.
Scion scion: Pinch open the skin of the rootstock and make it into a pocket. Place the scion obliquely in front of the anvil skin, insert it tightly, and do not insert the crack.
Grafting body healing: Grafted body bundled into 10 bundles per 10 strains, with the scion facing downwards, covering the roots upwards, burying the roots 3 cm, watering, and covering with a plastic film. Shed temperature 25 °C, 7 to 10 days planted.
In early June, when the ground temperature exceeded 15°C, the grafted plants were colonized to the earth. Dig planting ditch, basal fertilizer, filling enough water, planting. Middle and low-level cultivating mulberry mulberry garden 1200 per mu, spacing 1.0 meters, spacing 0.55 meters. The thickness of the cover soil is preferably 15 cm to cover the scion.
Fertilizers were applied twice at the seedling stage, and 8 kg of urea was applied per acre. Watering when dry, draining when it is awkward, and pay attention to grass.
The mulberry planting is about 30 centimeters high, and after germination, 3 to 4 new shoots are picked and expanded. To develop a tree.
Mulberry leaves are harvested from the mulberry fields several times a year. Mulberry trees absorb a large amount of nutrients from the soil. Therefore, fertilization is required every year to make the mulberry fields produce high yields year after year.
Each mulberry mulberry twice applied 20 kg of standard nitrogen fertilizer. Combining cultivated land in spring, 2000 kg of manure per acre is applied.
Mulberry Disease Prevention and Control of Mulberry Dwarf Disease: At the beginning of the disease, the young shoots of the shoots are thinned and the axillary buds are made early; in the middle stage, the leaf shape is further reduced, the leaves contract to the back more evenly, the yellowish color is thicker, the internodes are shorter, the leaf sequence is disordered, and the lateral branches are numerous. And small; late-stage leaves lean like cat ears, axillary buds continue to sprout, twigs clustered, mulberry brown shrinking.
Prevention: Use 50% of malathion 1500 times, 40% of Dimethoate 1500 times, from the beginning of June to the beginning of July.
Disease of mulberry: The bacteria invade from different parts such as stomata, petioles, and veins, causing the leaves to shrink to the back and one side. Some of them pass through the veins and enter the top buds. The growing point is dead and the tip leaves are black, commonly known as bad heads.
Prevention: spray 500 units of oxytetracycline hydrochloride solution, spray 7 to 10 days later. Sangha caterpillar larvae have a colony habit and can be captured manually. In the late autumn, the silkworm was over and sprayed with medicaments.
Mulberry Red Spider: adult body about 0.5 mm in length, sucking sap on the back of the leaf, the victim was white and translucent at the beginning, and gradually turned yellow-brown, seeing as far as fire. The prevention and treatment are based on drug use, and triclosan or dimethoate can be used.
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