Leaf potato is a sweet potato for fresh stems and leaves, due to the continuous cropping soil continuous cropping obstacle prominent, pest-prone, the use of leaf potato and rapeseed sprouts rotation cultivation methods, not only to solve the continuous cropping obstacles, but also improve land utilization and economic benefits. The annual production value of leaf potato and rapeseed rotation can reach 21,300 yuan per 667 m2, and the net income is about 15,000 yuan, of which 5 500 kg is produced for each 667 m2 of potato, and the output value is 16,500 yuan;è–¹ 2 000 kg, with an output value of 4,800 yuan. 1, Crops arrangements Leaf cuttings open field cultivation can be carried out in mid-April with a potato, five months late harvest; cultivation can cuttings in mid-March in the greenhouse, harvest began in early May, September, depending on market conditions were strike garden. Rapeseed sprouts in mid-August to early September nursery, planting in mid-September, early-maturing varieties can be harvested 10 months late, late-maturing varieties harvest began in early November, to next March strike garden. 2, variety selection For leaf use, it is advisable to use varieties that are resistant to sweet potato virus disease, vine disease, stems and leaves without hairiness, soft taste, and high yield, such as Fushu No. 18 and Quanshu 830. The rapeseed meal can be selected from the very early-maturing Shishan rapeseed meal; it can also choose a variety of rapeseed varieties such as Zhongshuang 12 and Zhongshuang 9 but the harvesting period is later. 3. Cultivation points 3.1 leaf potato 1 Land preparation for fertilization of leaves with potato should use fields with good soil structure, flat terrain and sunny land. In combination with the ground preparation of the base fertilizer, generally 3,000 m to 4 000 kg of fully decomposed farmyard manure, or 500 kg of fully fermented dried chicken manure, and 45 to 5% of the ternary compound fertilizer 55 to 65 kg can be applied per 667 m2. The leaf is planted with potato with a width of 1.2 to 1.5 m and a length of 50 to 55 m. In areas with abundant rain and rain in summer, ditches should be dug to ensure that the trenches, lumbar ditch and surrounding ditch are unblocked, and drainage and irrigation are convenient. 2 Reasonable close planting adopts vines with strong stems and disease-free vines, cut 5-7 knots, insert 3~4 knots obliquely, and cut off the petioles inserted into the soil. The cutting distance is 18-20 cm, the plant spacing is 20 cm, and the number of cuttings is 11,000 to 12,000 per 667 m2. 3 Field management leaves use potato to grow warm and heat-resistant, leafy potatoes planted in greenhouses in early spring should pay attention to prevent cold spring, cover the greenhouse film in low temperature period, and build a small arch shed in the shed or cover a layer of agricultural film on the surface. . In the high temperature and strong sunshine period in summer, the leaves are grown faster, and the shade net can be used to regulate growth and prevent premature aging. 4 pest control leaf soft potato leaves, easy to suffer from Spodoptera litura, greenhouse whitefly, aphids, can use biological missiles, sexual attractants, yellow sticky insect board and other technologies to prevent and control. When using pesticides for prevention and treatment, it is preferred to use biological pesticides such as Bacillus thuringiensis, tartary buckwheat, and high-efficiency, low-toxic and low-residue chemical pesticides such as chlorantraniliprole and indoxacarb. In recent years, sweet potato virus disease has a high incidence on leafy potatoes in Huanghua District, and it can be prevented by using non-toxic seedlings, cropping for land replacement, and controlling aphids. 5 timely picking leaves and leaves with potatoes in the spring after the general colonization of 40 to 50 days can start picking and listing, the first picking should be sooner rather than later, in order to promote the germination of axillary buds. The summer leaf potato is generally picked by 4 leaves and 1 heart, and picked every 7 to 9 days. The spring and autumn seasons are generally picked by 3 leaves and 1 heart, and harvested every 10 to 14 days. After harvesting, they are bundled into a handle and the old stalk leaves are removed. 6 timely topdressing with nitrogen and potassium fertilizers, can apply 10-20 kg of potassium sulfate type ternary compound fertilizer per 667 m2, and timely sweep down the fertilizer particles applied on the leaf surface. Watering should be done after top dressing to facilitate plant absorption and prevent fat damage. 3.2 Rape è–¹ 1Cultivate strong seedlings and spread the seeds evenly on the prepared seedbed, using 1~2 g of seeds per 1 m2. After sowing, spread a layer of fine soil and cover the seeds. Before the emergence of the seedlings, the seedling bed is covered with a layer of shading net. After the emergence, the temperature is high and low to expose the shading net. Generally 2 to 3 days can be emerged. 2 Seedling management After the emergence of seedlings in case of high temperature, during the day, pay attention to the use of shade nets to prevent high temperature pouring seedlings. After the real leaves are unfolded, the field humidity is controlled, and the water is soaked and dried. When 2~3 pieces of true leaves are combined with weeding to carry out the seedlings, the dense seedlings, diseased seedlings and weak seedlings are removed in time. Fertilizer application in the seedling period, depending on the growth of the seedlings, as appropriate, the application of foliar fertilizer or water soluble fertilizer. The seedlings were replanted 7 days before transplanting, that is, the sunshade net was covered for 1~2 h in the morning on sunny days, and was removed 1 to 2 h in the afternoon. Spray bactericide and insecticide once every 2~3 days before transplanting, so that the fertilizer can be colonized. 3 When the seedlings are planted to 5 true leaves, they can be planted, and about 3 100 plants are planted per 667 m2, and the row spacing is 40 cm×40 cm. 7 days before planting, combined with land preparation, 300 kg of dry chicken manure and 50 kg of potassium sulfate type ternary compound fertilizer were applied per 667 m2. The seedling bed was poured on the day before planting, and the soil was transplanted when the seedlings were planted the next day. Move the seedlings to minimize damage and roots. When planting, the roots should be buried in the soil, and should not be buried. After planting, the root water should be poured. 4 Field management Due to the high temperature period in the early stage of rapeseed growth in Wuhan, and the autumn drought is prone to occur, the field management should be based on plant growth and drainage to prevent the field from being too dry and too wet. Pay attention to the prevention and control of black rot, sclerotinia, aphids, diamondback moth and other pests and diseases, you can choose to kill (copper hydroxide), sclerotium, imidacloprid, indoxacarb symptom prevention. 5 timely picking and topdressing generally begin in late October, after harvesting every half month to apply a thin human excrement or compound fertilizer 15 kg / 667 m2, can be harvested successively to March next year. The above is the cultivation technique of leaf potato and rapeseed rotation, the content is for reference only. The climate and soil environment in different regions are different, and the crops for rotation are not the same, so the growers need to make corresponding adjustment plans. If you want to know more about agricultural technology, please pay attention to the Hui Nong School. Dietary supplements take vitamins, minerals and extracts with relatively clear structure-activity relationship as the main raw materials, and supplement the necessary nutrients and biologically active substances for the human body through oral intake to achieve the purpose of improving the body's health and reducing the risk of disease. Available in concentrated forms such as doses or capsules. Foods in traditional form with added nutrients or biologically active substances. Dietary supplement,New Dietary Ingredient,Dietary Supplement Product,Food Supplements YT(Xi'an) Biochem Co., Ltd. , https://www.ytherblifes.com
Leaf with potato and rapeseed rotation cultivation mode, high yield of 20,000 per mu