Yacon, introduced from South America, Asteraceae, Helianthus, has a plant height of about 2 meters. It looks like sweet potato, and its fruit grows underground. In the month of October, three to five flowers were planted in the shape of small sunflowers and harvested. Spring to early summer planting, autumn harvest, the South can winter in the ground. The average mu yield is 3,000 to 5,000 kilograms, the strain produces 3 to 10 kilograms, 5 to 8 fruits, and the single fruit weight is 250 to 600 grams and the maximum is 1000 grams or more. It is a dual-purpose fruit and vegetable, crystal clear fruit, crisp and juicy without residue, excellent taste, and has the efficacy of preventing and treating diabetes, obesity, hypertension and high blood lipids. And can regulate the stomach, proliferation of bifidogenic factors, to help digestion, Zhiji cure constipation, but also Liver detoxification Reduce Pathogenic Fire, prevent facial sores, acne. It is not only a natural "Wei Steel" for men's aphrodisiac, but also a natural health care product for women beauty. Its cultivation techniques are as follows:
First, soil preparation and ridging
It is best to choose sandy soil that is convenient for drainage and irrigation. Snow fruit bogey fertilizer. Each mu of 2000 kg to 3000 kg of farmyard fertilizer, if the farmyard fertilizer is insufficient, can also add appropriate amount of compound fertilizer and potassium dihydrogen phosphate. The row spacing is 0.5 meters and 1 meter, with 1300 plantings per acre. Before planting, the ridges should be ditched and saccharin fruit should be planted on the ridge back (such as sweet potatoes and potatoes). In order to prevent the harm of underground pests, it is necessary to apply phoxim granules before planting, apply 2 to 3 pounds per acre, and apply wheat bran or bean cake to planting holes.
Second, planting
Planting time varies from place to place. The earlier planted in a suitable period of time, the higher the yield and the higher the nutritional value. In general, when the soil temperature of 5 cm is stable at 14°C-15°C in the spring, the plants can be planted in the open field in the middle of April, and planted in advance in the south or in protected land. The planting method can be planted directly into the fields in Daejeon, or it can be planted in Daejeon after growing seedlings in a greenhouse with nutrient cartridges or nutritional bags. For bulbous bulbs, use a knife to cut them (same as cutting potatoes), or you can bury the entire bulbs in a greenhouse or in a warm place. When the buds grow to peanut size, you can use them. Knife cut points ball. If the teeth are too dense and not well cut, the bulbs can be placed directly or implanted in a nutrient bowl. When the height of the seedlings is 10 cm to 15 cm, they are transplanted separately into the field. In order to expand the breeding, it is also possible to separate and plant the underground tiller again in the summer. In the summer, although the result of yacon is not large, a large number of bulbs can be obtained. In general, one yacon is planted this year, and 100 to 200 or more bulbs can be propagated in the next year.
Third, management
When the seedling height is 20 centimeters after planting, it should be timely watered and soiled, and combine with the grass to cultivate the soil. If the amount of fertilization is insufficient before planting, appropriate amount of soil and miscellaneous fertilizer should be added in this period, timely watering in case of drought, rain After the timely drainage. When the stem grows to about 1m, it will produce branching branches at the base. If the growth is strong, the field can be closed and the branching branches can be removed. For the general growth, one or two branching branches can be appropriately selected for growth. Breeding, the branching branches of the armpits can be used as propagation material for cuttings, and will be harvested after late autumn when a large number of bulbs are harvested. In mid-August of mid-August, 10 kg to 15 kg of potash fertilizer is applied per acre, and 0.2% potassium dihydrogen phosphate is sprayed every 15 days to 20 days for foliar fertilizer to increase the sugar content of fruit and promote fruit enlargement. .
Fourth, harvest
By the month of October, the bundled flowers on the stem tip of the plants began to wither and the leaves began to yellow and they began to control the fruit. The winter can be reserved in the south for digging and selling at any time; the north should be stored in the kiln before the frost is excavated, and it is easier to preserve than the sweet potato, and it is still intact after storage in the Qingming Festival. The stalks can be used as high-quality feed, and the leaves and flowers have high nutritional value and can be dried in the tea or processed and reused.
V. Retention
After the yacon has been excavated, the bulbs on the top of the fruit are cut off, and the wounds are allowed to soak for 3 minutes in a solution of potassium permanganate for 3 minutes. After being removed, they are buried in a cellar or in a frost-free room with wet sand. It can be planted.
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