The latest course of high-yield fertilization techniques for asparagus

Asparagus is a perennial plant of the asparagus family and a very popular vegetable. Its seedlings are the main edible part, and the nutritional value of asparagus is very high. It is rich in vitamin B, vitamin A and other nutrients. Therefore, the planting area in our country is very large now. When planting asparagus, we need to do a good job of fertilization to ensure its yield. Then let's take a look at the high-yield fertilization techniques of asparagus together with Xiaobian!

1. Fertilization at seedling stage

Asparagus seedlings in sowing, if the soil is rich in organic matter, then in the seedling growth period is not fertilized. The seedlings can be transplanted to the field when they are two months old. Conditions can be fertilized twice in 20 days and 40 days after full seedling. The fertilizer is mainly decomposed farm manure, and urea water with lower concentration can also be used. If it is dry urea, then we must pay attention to control the amount of application, not when there is dew. After spraying dry urea, appropriate soil watering, and then urea into the soil dissolved.

2. Fertilization after planting

Asparagus begins to grow after planting and after the seedling stage. This period because asparagus growth is not large, root absorption capacity is not strong, so topdressing to a small number of principles, fertilizer to quick-acting fertilizer-based. The first fertilization is carried out about one month after planting, and appropriate urea and compound fertilizer are applied, mainly spot application and furrow application. Proper watering after fertilization can improve the absorption rate of asparagus plants. Then after the first fertilization, topdressing once every other month, topdressing twice or so. Each fertilization should be in shallow grooves around the plant to ensure uniform plant absorption.

3. Fertilization during shoot picking period

Asparagus into the harvest period, to be appropriate to apply quick-acting fertilizer, such as urea, potassium chloride and so on. Compound fertilizer can also be applied, and the fertilizer application method is based on topdressing outside the root or furrow application. Topdressing at harvest time is mainly to ensure the continuous growth of mother stem, enhance photosynthesis capacity and improve the accumulation of nutrients in mother stem. It can also supplement nutrients for the soil and ensure the nutrient absorption of the roots. If it is root topdressing, then urea, borax and potassium dihydrogen phosphate and other substances can be prepared, and then sprayed.

4. Fertilization after bamboo shoot picking

After asparagus harvest, a rejuvenation fertilizer should be applied. The application of rejuvenation fertilizer is very critical. For white asparagus, apply organic fertilizer in furrows before ridging, and for green asparagus, apply fertilizer in furrows. Control the amount of fertilizer, about 3500kg fertilizer per mu, combined with about 80kg compound fertilizer. To ensure the quality of farm manure, control the proportion of nitrogen, phosphorus and potassium. This fertilization work directly affects the yield of the next year, so everyone must pay more attention.

The above is a simple introduction to asparagus high-yield fertilization technology. Today's introduction is here, this article is for reference only, I hope to help everyone oh!