Purple Jade Yam is also known as “Purple Ginsengâ€. It has high protein content and starch content, and it tastes more powdery and sweeter than ordinary yams. According to the “Compendium of Materia Medica†records, Ziyu yam and yam have “protect the stomach and spleen, make up the heart Insufficiency, openness, patience, kidney qi, antidiarrheal phlegm, phlegm, moisturizing fur, etc., regular consumption, can regulate immunity, enhance resistance, lower blood sugar and blood pressure, anti-aging and longevity, it is excellent Yangwei Huwei food. Because Ziyu yam has high nutritional value and has a certain role in health care and beauty, it is particularly popular among consumers. Its price is more than double the price of ordinary yam in the market and can be sold at 10-20 yuan per jin. Market prospects Very broad. In 2015, the introduction of planting in Jianchuan County, net profit of 10420.00-24880.00 yuan, the economic benefits are considerable. The planting techniques are summarized as follows:
1. Select the land to choose the well-drained, rich soil fertility, soil layer deeper sandy soil plots planted, sandy soil blocks pay attention to water, sticky soil to do a good job of drainage. The single line, shallow slot length of 1 meter, a single line of 1.4 to 1.5 meters per ditch, ditch depth of 30-35 cm. High ground, sandy soil, low groundwater level, easy drainage, small shallow shallow ditch; conversely, low topography, clayey soil, high groundwater level, and difficult to drain, should be deep trenches. The length of the gully exceeds 25 meters and the girth is increased to facilitate drainage in the rainy season to ensure that no water accumulates in the field.
2. Fertilizer preparation: According to the application of 2000kg per acre of fertilizer and 40kg of compound fertilizer, mix it with the top soil before planting.
3. Moisture Management Ziyu Huaishan Xigan is afraid of water, and it is timely to drain in the rainy season. From August to September, it is a period of rapid expansion of the stems of Huainan Mountain. It is necessary to keep the soil moist and ensure the water requirement. In the rainy season, the gutters should be drained in time to achieve no water accumulation in the fields.
4. Planting, seed selection and germination are planted in accordance with the climate characteristics of Jianchuan County. The temperature is generally stable above 12°C during the period from late March to early April. When the ground temperature reaches above 10°C, it is planted. Select shallow tank planting, the general specification is 10063 cm U-shaped shallow groove. Put 2-3 cm soil on the shallow trough filled with loose packing. When the seed potato is larger, the buds are facing one side and 1-3 cm away from the upper end of the shallow trough. The long strips of potato are parallel to the shallow troughs. . Select sunny or cloudy planting, rainy days should not be transplanted. Select mature, individual, uniform, non-insect spot, non-perishable, non-injured healthy tubers, cut into 6-10 cm long tubers, each about 50 grams, cut lime or ash, press the head, in, Tail parts and sizes are piled separately, planted according to classification, conducive to management, and promote balanced growth. Before germination, use carbendazim WP 800 times for 8-10 minutes, remove and air dry, spread the tubers into 15 cm thickness indoors, and then use a wet straw or clean river sand to cover the germination. Keeping 20°C-25°C, when the germination rate reaches 80% or more, the buds can be exposed and transplanted. Only one robust bud was left during the transplant and the rest was removed.
5. Field management. Mainly weeding. Spray the herbicide in time to prevent the growth of weeds. Apply 50% butachlor 0.15 g per acre and add 900 kg of water to the surface. Followed by the introduction of vines. Immediately after the emergence of scaffolding cited vine. The vines must be cut to dense branches to maintain ventilation and light, leaving 2-3 seedlings/pieces. When the seedling height is 30 cm, it must be erected in a timely manner to guide the vines to grow upward. Generally, the bamboo shoots or branches are used to take the herringbone frame and the height is preferably 1.5-2.5 meters. The bracket should be firmly inserted to prevent wind blowing. Then again top-dressing. In the early stage of growth, yam yam requires less fertilizer, mainly in the middle and late stages of fertilization. When the stalks are spread on half of the vine, they are combined with shallow loose soil. Each gram of fertilized soil is diluted with 500kg of feces, and urea can be added to 3-3.5kg to promote hair rooting. Strong seedlings. The second seedling began to grow, promote the application of three yuan per mu compound fertilizer 20 ~ 30kg, promote its vigorous growth. In August-September, re-application of potato fertilizer, potassium per acre potassium fertilizer compound 20 ~ 22kg, and then selected sunny afternoon continuous spraying of potassium dihydrogen phosphate 2 ~ 3 times. According to weather conditions timely irrigation and do not fill the fields.
6. Pest Control: Pests and diseases mainly include cockroaches, wireworms, cockroaches, Spodoptera litura, leafhoppers, rust, anthracnose, brown spot, and root rot. The prevention of cockroaches, golden needles, cockroaches, the general can be used per acre 90% trichlorfon 300 times root water. The control of earthworms and golden needles can be mixed with soil (sand) method with 2.5% dichlorfon powder per acre with 2 kg of fine soil (sand) 30-40 kg mix, sprinkled in the vicinity of the roots of the potatoes or soil buried in the soil or open ditch Sprinkle the soil in the trench; the disease can be sprayed with 70% thiophanate-methyl 1000-fold solution or 25% metalaxyl 600-fold solution.
7. Harvest
From late October to December, timely harvesting was conducted according to market demand.
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