The Latest Spring Fertilization Techniques and Methods for Garlic: A Tutorial
Garlic is one of the common seasoning vegetables, and it has a high demand for fertilizer and water during the growing process. To achieve high yield and high quality, spring topdressing must be taken seriously. So how should garlic be topdressed in spring? Follow the editor to learn more.
1. Greening fertilizer
As spring temperatures gradually rise, garlic will also enter the greening stage. Generally, when the temperature exceeds 7 degrees, garlic enters the greening stage and begins to grow. For plots with sufficient base fertilizer, no topdressing is needed at this time. It is only necessary to properly spray foliar fertilizer and growth regulators after the garlic turns green. The most commonly used are monopotassium phosphate and brassin, which have the effect of enhancing disease resistance and stress resistance. In addition, because late spring cold spells often occur in spring, spraying them can also prevent low-temperature freeze damage.
2. Garlic bolt fertilizer
Garlic bolt fertilizer is generally applied around Qingming. At this time, the garlic plants enter a period of rapid growth, and the garlic bolts at the roots have also begun to differentiate and grow. If base fertilizer was applied at sowing, timely topdressing is needed. At the same time, this is also a period when garlic has a relatively large water demand, so 2-3 kg of urea can be applied with irrigation water. Be sure not to apply too much, so as not to damage the root system and cause premature yellowing of garlic leaves, because nitrogen will also convert into ammonia gas, which cannot dissipate due to the blocking of the plastic mulch and will burn the root system, causing large-scale yield reduction. For plots with sufficient base fertilizer, no fertilizer is needed this time. It is only necessary to spray an appropriate amount of insecticide to prevent garlic maggots. The insecticide must be sprayed evenly and thoroughly.
3. Bulb expansion fertilizer
This fertilization can be applied with irrigation water before and after harvesting the garlic bolts. Generally, 2.5-3 kg of urea and 2 kg of monopotassium phosphate are applied per mu with irrigation water. After application, harvesting can begin, and because the garlic bolts have just been watered, the moisture is sufficient and the yield is high. After the garlic bolts are harvested, the nutrients of the garlic begin to flow back to the roots, forcing the underground bulbs to grow. At this time, if water is insufficient, water promptly. Also apply 2.5 kg of urea per mu with irrigation water. After harvesting the garlic bolts, the earlier the watering, the better. Note that watering and fertilization should be stopped 7-10 days before harvest.
The above is an introduction to spring fertilization techniques for garlic. We hope it can help you. To learn more related knowledge, please keep following us.