Asparagus High-Yield Fertilization Technique Tutorial, Master the Latest Methods
Asparagus is a perennial plant of the Asparagaceae family and also a very popular vegetable. Its young shoots are the main edible part, and the nutritional value of asparagus is very high. It is rich in nutrients such as vitamin B and vitamin A. Therefore, its planting area in our country is now very large. When growing asparagus, we need to do a good job of fertilization to ensure its yield. So let's take a look together with the editor at the high-yield fertilization techniques for asparagus!
1. Fertilization during the seedling stage
When sowing and raising asparagus seedlings, if the organic matter content in the soil is rich, then no fertilization is needed during the seedling growth period. When the seedlings grow to two months old, they can be transplanted into the field. If conditions permit, fertilization can be carried out twice at 20 days and 40 days after full emergence, mainly with decomposed farmyard manure, or low-concentration urea water can also be used. If it is dry urea, then be sure to control the application amount well, and do not apply it when there is dew. After broadcasting dry urea, properly loosen the soil and water, then the urea enters the soil and dissolves.
2. Fertilization after planting
After asparagus finishes the seedling recovery period following planting, it officially begins to enter the growth stage. During this period, because the growth amount of asparagus is not large and the root absorption capacity is not strong, topdressing should follow the principle of multiple applications with small amounts, and the fertilizer should mainly be quick-acting fertilizer. Carry out the first fertilization about one month after planting, applying an appropriate amount of urea, compound fertilizer, etc., mainly by spot application and furrow application. Water properly after fertilization to improve the absorption rate of the asparagus plants. Then topdress once every month after the first fertilization, for about two topdressings. Each fertilization should involve opening shallow furrows around the plants to ensure uniform absorption by the plants.
3. Fertilization during the spear harvesting period
After asparagus enters the harvesting period, quick-acting fertilizers such as urea and potassium chloride should be applied appropriately. Compound fertilizer can also be applied, with the main fertilization methods being foliar topdressing or furrow application. Topdressing during the harvesting period is mainly to ensure the continuous growth of the mother stems, enhance photosynthetic capacity, and increase the accumulation of nutrients in the mother stems. It can also supplement nutrients to the soil and ensure nutrient absorption by the root system. If foliar topdressing is used, then substances such as urea, borax, and potassium dihydrogen phosphate can be used to prepare the solution, which is then sprayed.
4. Fertilization after spear harvesting
After asparagus is harvested, a rejuvenation fertilizer should be applied once more, and the application of the rejuvenation fertilizer is very critical. If it is white asparagus, then organic fertilizer should be applied in furrows before leveling the ridges in the field; if it is green asparagus, then furrow fertilization should be carried out. Control the fertilization amount well, applying about 3500 kg per mu, together with about 80 kg of compound fertilizer. Ensure the quality of the farmyard manure and control the proportions of elements such as nitrogen, phosphorus, and potassium. This fertilization work directly affects the yield of the following year, so everyone must pay close attention to it.
The above is a brief introduction to the high-yield fertilization techniques for asparagus. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!