Sesame high-yield four off
After cultivating and weeding, the sesame seedlings should be hoeed and weeded. When the seedling height is 5 cm, a second cultivator is carried out, and then cultivating 1-2 times according to soil conditions and seedling conditions to achieve loose soil and good air permeability. Create favorable conditions for root activity. When cultivating, be careful not to get too deep so as not to hurt the roots. Promote the healthy growth of sesame seedlings, lay the foundation for high yield.
Soil protection against lodging is the enemy of sesame production, and it has a large impact on production, generally reducing production by 40-80%. To prevent lodging, one is to cultivate soil. When the sesame seedlings grow to about 25-30 centimeters, roots should be planted to prevent winds from falling down. The second is to spray paclobutrazol in the sesame leaves 2-3 to inhibit the vegetative growth at the seedling stage, promote root development, increase the number of roots and deepen the roots, reduce the height of the legs and the part of the chelation, avoid top-heeledness, and prevent lodging. About 15 days after the initial flowering of sesame seedlings, spraying of dilute amine inhibited the upper ineffective flowering and scarring, continued to grow at the top, and reduced the nutrient content of the upper ineffective mangosteen to make the plant grow robustly and prevent lodging.
During the flowering season, the growth of the sesame seedlings during the flowering and seedling period is the most rapid. At this time, vegetative growth and reproductive growth go hand in hand, and the most nutrients are absorbed, which account for about 60-70% of the entire growth period. Urea 10 should be applied at the early flowering stage per acre. 12 kg. In the flowering stage, 0.3-0.5% potassium dihydrogen phosphate solution was sprayed on the leaf surface to make the sesame grow vigorously and accumulate more photosynthetic products. Increase the number of calyx, early prolonged decline, grain full and full.
Topping and topping is a simple and effective measure to increase production. Generally, it can increase production by 10-15%. Topping can inhibit ineffective growth, regulate and balance vegetative growth and reproductive growth, and make upper pods full. Thousand-grain weight increased to increase production. The topping is generally carried out 35 days before the sesame harvest, ensuring that the upper pods have about 35 days of grouting maturity. The method of topping is to select the sunny day and remove the top of the plant by 2 cm. Guarantee nutrient supply and achieve high yields.
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