The sesame seedling period is about one month from emergence to budding. This is the period of vegetative growth of sesame. Due to the slow growth of sesame seedlings and the vulnerability of seedlings to seedlings, grassland, and diseases and insect pests, the management of seedlings is strengthened to ensure that the whole seedlings and strong seedlings lay the foundation for the growth of buds at the later stage. This is an increase in production. The key to stable production. Specifically, there are the following aspects: 1 Seedlings, seedlings, seedlings, and shelled sesame seeds are sown 5 to 6 days later. If they do not emerge in time or are incompletely emerged, they should immediately find out the reasons and take measures. Serious seedlings must be replanted early; if seedlings are seedlings lacking, the same species should be used to regenerate seeds in a timely manner; in the case of a few seedlings, seedlings can be transplanted. After raining in the rain, after the rain Mengqing, the ground of the broken soil is easy to form a hard shell, should be in the 3 ~ 4d after sowing, with a rake to cross 1 ~ 2 times, to get rid of the compaction, help the seedling unearthed. After two seedlings and sesame seedlings were seedlings and time seedlings, “to eat sesame oil, break the crosshead firstâ€, that is, the first time the first seedlings were carried out on the first leaf, the seedlings would be dispersed and the seedlings would be removed. 2 to 3 pairs of true leaves when the second seedlings and pre-line Dingmiao, generally grow in the sesame seedlings when the fourth true leaves. The timing of seedlings should not be too early, especially in years when the pests and diseases are severe, a number of seedlings should be appropriate, and some robust seedlings should be reserved on the line for making up seedlings. Before transplanting seedlings, water should be irrigated and transplanted with soil. Transplanting should be carried out in the evening or on cloudy days. Afterwards, watering and soiling should be used to facilitate survival. Seedlings and seedlings should adhere to the principle of “retaining thin, thin and dense, not rare and dense, and strongâ€, and the number of seedlings should be kept according to the planned spacing. 3 The time and depth of cultivating weeds and cultivating soil should be determined according to weather, soil moisture and seedlings. "Sesame full moon three grasses", generally when the first seedling grows on the first leaf of the true cultivator for the first cultivator, cultivator should be shallow should not be deep, mainly to weed control, to prevent excessively deep root injury; the second cultivator in the sesame seedlings Out of 2 to 3 pairs of true leaves, the depth of 5 ~ 6cm is appropriate; the third cultivator should be carried out in 5 pairs of true leaves, the depth of up to 8 ~ 10cm. In combination with the last cultivator, the roots were planted and rooted to facilitate drainage and irrigation in order to prevent waterlogging and drought, so as to reduce disease and prevent lodging. In addition, it should be done that "after the rain, there must be grass and squats" until the flowering season is no longer carried out. 4 Prevention and treatment of sesame seedlings The major pests and diseases of sesame seedlings include fusarium wilt, virus disease, blight, small earthworms and aphids. They can cause ridges and ridges, and affect the growth of sesame. It can be used for soil treatment with 2.5% coke seed dressing and 3% carbofuran. It can also manually kill larvae and wipe off the egg masses. It can find and remove diseased plants in time and bring them out of the field for destruction. 50% carbendazim can also be used. 800 times liquid plus 48% Looseben EC 2000 times for control. (Author: Kan Zhen Zhi Cui Xianghua high jump Bee Unit: Zhumadian City, Henan Province Institute of Agricultural Science)
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