Latest Key Technical Points for High-Yield Field Management of Sesame
Sesame is an annual upright herbaceous plant of the Pedaliaceae family. It has a wide distribution range in the tropical regions of China, and can not only be used for food, but is also a major oilseed crop. Its economic value is very high. When planting sesame, field management is the key to ensuring high yields. So how should sesame be managed when planting? Below, the editor brings you the field management techniques for sesame. Let's take a look!
1. Thinning and Final Thinning
After sowing sesame, management work should be done well, covering with soil, covering with film, and watering to promote seed germination. After the seedlings emerge, when they grow to about 1 or 3 true leaves, thinning should be done well to avoid the phenomenon of overgrown seedlings. Usually thinning is done about twice, and the thinning time should be early; if too late, it will reduce field ventilation and light penetration, causing them to compete with each other for sunlight and nutrients, affecting yield. Then at 4-5 true leaves, final thinning should be done well to maintain a certain planting density and provide sufficient growing space for healthy seedlings. Finally, at gaps where seedlings are missing, be sure to fill in robust seedlings of the same growth to ensure a full stand.
2. Cultivation and Weeding
Cultivation and weeding work is very important for the growth of sesame. Especially during the sesame seedling stage, because the growth ability of sesame seedlings is relatively weak. If weeds are not removed in time, the weeds will snatch sesame's nutrients and water, seriously affecting sesame growth. Reasonable cultivation can not only achieve the effect of weed removal, but also improve soil ventilation and drainage and irrigation capacity. It improves soil structure, promotes nutrient absorption, prevents sesame lodging, and enhances sesame growth ability. From the sesame seedling stage to the early flowering stage, cultivate at least 3 times, and stop cultivation after the rows close.
⟦NL>3. Water and Fertilizer Management
Water and nutrients are indispensable nutrients in the growth process of sesame. During growth, sesame is very sensitive to changes in soil moisture content. It has a certain demand for water but is not tolerant of waterlogging. Therefore, when watering, we should control the amount and frequency of watering according to the soil moisture content and weather. Avoid too little water affecting sesame growth, and too much water causing sesame root rot and triggering pests and diseases. Then before planting, we should not only apply sufficient base fertilizer, but also do a good job of topdressing during important growth periods of sesame such as the flowering and fruiting stage and the regreening stage, to meet the nutritional needs of sesame growth. Be careful to control the amount to prevent fertilizer damage, which would instead be counterproductive.
4. Pest and Disease Control
Pests and diseases have the greatest impact on sesame yield. Therefore, when planting, we must pay attention to doing a good job of pest and disease control. Common sesame pests and diseases include damping-off disease, root rot, and cutworms. We should do corresponding preventive work according to these pests and diseases and strengthen management. Control the amount of water and fertilizer well, and while meeting needs, prevent waterlogging damage and fertilizer damage. Then frequently observe the growth of sesame, and when abnormal conditions are found, deal with them promptly and accordingly, to avoid expanding the affected area and affecting planting benefits.
The above is a brief introduction to high-yield field management of sesame. Sesame yield is directly related to planting benefits, so if you want to increase yield, field management must be done well, improving sesame growth ability and avoiding some unnecessary losses. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!