High yield sesame cultivation techniques
1. Selected varieties that have performed well in recent years include Echi 1, No. 2 Zhizhi, Zhongzhi No. 7, Zhongzhi No. 8, Zhongzhi No. 10 and black sesame Zhongzhi No. 9 and so on. They have good comprehensive traits, yields of more than 100 kilograms per acre, and strong adaptability, can be planted everywhere. 2. Rotation of crops for continuous cropping of sesame will increase the disease. For one year in succession, the incidence rate in Daejeon will be over 50%, and it will be as high as 80% for two consecutive years. Therefore, it is best to plant sesame seeds with crops such as corn, sweet potato, soybean, sorghum, and cotton for 3-4 years. 3, the ditch reform sesame seedlings resistant to waterlogging, stains easily after being infected by the disease, and poor root growth, especially in the late easy to be blown down by the wind. Therefore, it should be changed as a deep ditch narrow box, so that the field can not only line up the water, but also filter dark stains, sesame can grow normally. The general compartment width is 1.5 to 2 meters, and the compartment width is about 30 centimeters. The depth of the trench should be deeper than the tillage layer. 4. Under the premise of suitable early sowing of double-layer sowing, double-layer sowing should be carried out. After the land is ploughed, a layer of seeds shall be seeded immediately, once sowed, once sowed, and finally耙 耙 耙, 耙 耙 耙 耙 耙 耙 耙 对 对 对 对 对 对 对 耥耙 耥耙 耥耙 耥耙 耥耙 耥耙 耥耙 耥耙 耥耙 耥耙 耥耙 耥耙 耥耙 耥耙. The advantage of sowing is that: when it is dry and dry, the bottom seed can absorb moisture and excavate the soil on time; when the rain is full, the superficial seed can fully emerge. We can do double insurance for drought and rainy days to ensure that all seedlings are seeded and once seedlings are raised. 5. Proper density planting of more than 100 kilograms per mu. The planting density of sesame seeds is: 15,000-1.8 million single-bar type mu plants, 13 cm to 16 cm in plant spacing, 26 cm spacing, and 8000 per planted plants in branch-type varieties. Plants, spacing 22 cm -24 cm, spacing 33 cm. After sesame seedling emergence and time seedlings, it is required to carry out the first time of the seedlings in the first pair of true leaves, pull out the dense seedlings, to the leaves do not take the leaves for the degree; to 3 -4 true leaves when the second time the seedlings To promote the balanced and robust growth of sesame seedlings. When the seedlings were found to be short of seedlings, they should be brought in with soil and seedlings in time. When the sesame grows to 12 cm -15 cm, the last time the seedlings are made and the seedlings are set. 6, chemical weeding within 3 days after sowing, with 48% per acre cable EC 200-250 ml, or with 72% Dole EC 100 ml, or 60% Nilaisi EC 60 ml, diluted with water evenly sprayed With soil table. If the soil moisture is heavy, it should be filled with water, then sowing, spraying and spraying. Soil mass or organic matter-rich fields should increase the dosage by 20%. In addition, weeds can also be directly sprayed and killed by the stem and leaf treatment agent after emergence. When most grasses and weeds are in the 3-leaf stage to the 4-leaf stage, they use 10.8% of high-efficiency herb oil to achieve 20 ml to 30 ml per mu. Or 15% of the stable and stable emulsifiable concentrate of 40 ml -50 ml or 5% of chlorinated grass emulsifiable concentrate 70 ml - 100 ml, add water 40 kg -50 kg diluted, select early after the rain, or early and late dew spray . Increase the amount of diluted water when the soil is dry. Stem and leaf treatment agent should be used twice in rainy season. 7. Scientific fertilization should first apply sufficient basal fertilization, apply 2500 kg of high-quality farmyard fertilizer per acre, apply superphosphate at 25 kg to 30 kg, and add 5 kg of urea when organic fertilizer is insufficient. Before the application, the phosphate-reducing fertilizer was mixed with the farmyard fertilizer for more than 15 days, and turned over to the soil during the shallow tillage. Flowering and poding period is the most prosperous period of sesame growth, and it is also the period of peak fertilizer demand. The absorption of nutrients accounts for about 70% of the total amount. Fertilizer must be added to meet the demand. Practice has shown that topdressing chemical fertilizers can increase production by more than 30%. The top dressing method is the application of nitrogen fertilizer on the ground, spraying phosphate fertilizer, potash fertilizer and boron fertilizer outside the root. At the beginning of the flowering period, 10 to 15 kg of ammonium sulfate or 7.5 to 10 kg of urea was applied per acre. At the same time, foliar spraying was carried out with a 0.4% solution of potassium dihydrogen phosphate and 0.2% borax, and sprayed for about 5 days. Once, spray twice. 8, timely topping usually in the full fruit period, when the main stem of the top of the leaf section clustered, almost stop growing, select the sunny morning to remove the top bud. 9. Prevention and control of pests and sesames The major pests and diseases of sesame include stem blight, wilt disease, blight, anthracnose, bacterial wilt, virus disease, small earthworms, aphids, and blind stink bugs. Product name
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