When is the best time for Bletilla striata to apply fertilizer? What kind of fertilizer should I apply? (with high yield fertilization method)

It takes 3-4 years from seedling to harvest of Bletilla striata. In the process of artificial cultivation, there are many diseases and insect pests affecting its healthy growth. When is the best time to fertilize? What fertilizer is good? The following is a high-yield fertilization method for everyone to organize bletilla striata.

Fertilization Techniques for High Yield of Bletilla striata

What fertilizer is good for white bletilla

Nitrogen, phosphorus and potassium are the main components of fertilizer. The main function of nitrogen fertilizer is to promote the growth of stems and leaves, so that branches and leaves flourish. When the plant is short of nitrogen fertilizer, the main performance is yellow leaves, and even yellow stems. The main function of phosphate fertilizer is to promote the growth of roots and promote the growth of new buds. The function of potash fertilizer is to make plants grow firmly, enhance the disease resistance of plants, and promote the growth of false bulbs.

Fertilization method for high yield of Bletilla striata

Bletilla fertilizer has two kinds, one is soil fertilization, the other is foliar fertilization.

1. Soil fertilization method

Composted farm manure: Farm manure is a very good organic fertilizer, but it must be stacked for more than one year before it can be applied. This fertilizer solution can be used to irrigate water 10-20 times.

Fertilizer: When applying fertilizer, pay attention to the balance of nitrogen, phosphorus and potassium, and strictly control the concentration. Generally, the concentration of water is not less than 1000 times.

2. Foliar fertilization method

Foliar fertilization can make up for the lack of trace elements needed by Bletilla striata, which can be diluted with liquid fertilizer sold in the market, such as "Hua Bao", and sprayed once every 15 days.

Fertilization rather light not thick, foliage oil bright on that there is no shortage of fertilizer, foliage is relatively dull to fertilize.

III. Fertilization time and interval

Because bletilla grows slowly and needs less fertilizer, thin fertilizer and frequent application method are adopted. In the spring and autumn of each year, when Bletilla striata grows vigorously, the fertilization interval should be shortened, and the summer and autumn should be extended or not applied.

Spring soil fertilization interval 15 days, foliar fertilization 15-20 days once, two kinds of fertilizer can be crossed, that is, 3-4 times a month, each time interval 10 days.

IV. Specific measures

1. Foliar fertilizer

Potassium dihydrogen phosphate 2000 times foliar spray, 99% content above 7.5 grams per barrel of water, not less than 5 barrels per mu of water, both sides of the leaves are sprayed, that is, spray adjust different angles, the reverse side of the leaves absorption effect is better.

Huabao foliar fertilizer, not less than 1000 times, or recommended concentration to use.

2. Compound fertilizer

Compound fertilizer with total content of nitrogen, phosphorus and potassium higher than 50%, mixed with water-soluble fertilizer and urea, etc., 1500-2000 times irrigation.

Generally, 3-4 tons of water are needed for irrigating chemical fertilizer per mu, and the fertilizer used per mu is less than 10 kg. After fertilizing, observe whether there is burning seedlings, and increase the amount of fertilizer appropriately next time.

V. Precautions

1, the plant absorbs nutrients and water all depends on the fibrous roots, therefore, fertilization should be around the roots, fertilizer should seep into the roots.

2, organic fertilizer should be fully fermented, decomposed, avoid using raw manure when topdressing, and the concentration should be thin, not suitable for block application.

3. Fertilization should be applied when the weather is clear and the soil is dry. On rainy days, due to the slow absorption of water by roots, nutrients are not only difficult to absorb, but also washed away by rain, resulting in waste.

4, foliar fertilizer is through the leaf stomata into the leaves, and then transported to various organs, generally young leaves than old leaves absorb faster, leaf back than leaf front absorption faster. Therefore, spray fertilizer to spray evenly, so that it is conducive to absorption.

5, foliar fertilizer to strictly control the concentration, temperature, cloudy or sunny morning and evening spraying, high temperature affects fertilizer efficiency or lead to phytotoxicity. If there are signs of phytotoxicity, spray water once in time.