Is it good to apply plant ash to fruit trees in early spring?

Plant ash is mostly firewood burning in rural families, which can be seen everywhere in our daily life, so is it good to apply plant ash to fruit trees in early spring?

Introduction of plant ash

Plant ash is mainly potassium fertilizer, but also contains more calcium and phosphorus, but also contains magnesium, sulfur, boron, zinc, aluminum, copper and other trace elements, no nitrogen and organic matter. Therefore, applying plant ash to fruit trees can really provide a variety of trace elements to fruit trees and prevent the occurrence of element deficiency in fruit trees. Therefore, as a main source of potash fertilizer, plant ash is used on fruit trees.

Is it good to apply plant ash to fruit trees in early spring?

In fact, it is good for early spring fruit trees to apply plant ash, but there are also areas that need to be paid attention to.

1. Benefits of applying plant ash to fruit trees

(1) Prevention and control of powdery mildew

For fruit trees with powdery mildew, dig an annular ditch 10-20 cm deep at 15 cm from the plant, apply 10-20 kg of plant ash in the ditch and cover it with a thin layer of soil.

(2) Prevention and control of rust fruit disease

For diseased apple trees, dig an annular ditch about 50 cm wide and 60 cm deep from the root diameter, then apply plant ash as base fertilizer into the ditch, pour enough water, and press on the new soil.

(3) Control of root rot.

Plant ash is very effective in controlling root rot of pear, peach, Hawthorn and other fruit trees. The method is to peel off the soil at the root of the fruit tree, remove the soil around the rotten root, scrape off the skin of the diseased root, dry for 24 hours, cover 2.5 kilograms of fresh plant ash, and then cover the soil.

(4) Control aphids

Soaking 10kg plant ash with 50kg water for 48 hours and spraying filtrate can effectively control aphids on fruit trees.

(5) Control of blight and anthracnose

Plant ash was sprinkled along the ridge of diseased trees at the seedling stage, with a dosage of 30kg to 50kg per mu.

(6) Control of early defoliation disease of fruit trees.

The leaching solution was made by soaking 8kg plant ash with 100kg water for 48 hours, and spraying it with fungicide had a certain control effect on early defoliation disease of apple.

(7) promote seed germination of fruit trees.

After sowing, covering the seeds with plant ash can improve the seed germination rate, seedling emergence neatly, robust growth and seedling growth rate.

(8) promote fruit trees to take root as soon as possible.

When transplanting seedlings, using plant ash combined with organic fertilizer as base fertilizer, or adding 5% of 10% plant ash in the preparation of nutritious soil can increase effective nutrients, promote root development, and reduce diseases and insect pests.

2. Matters needing attention in applying plant ash to fruit trees

(1) it should be used in orchards lacking potassium fertilizer as far as possible.

Although plant ash is readily available, the source is limited, so it is necessary to give full play to the value of plant ash and try to use it in potassium-deficient orchards, such as coarse sandy soil orchards.

(2) it is best used in acidic soil.

Plant ash is an alkaline fertilizer, which can not only adjust soil pH, reduce the content of active iron and aluminum in soil, promote the release of phosphorus, but also create good environmental conditions for the growth of fruit trees and the activity of microorganisms.

(3) it cannot be mixed with calcium superphosphate.

Plant ash contains more calcium, the mixed application of the two will react, thus reducing the effect of phosphate fertilizer.

(4) it cannot be applied on saline-alkali soil.

The application of plant ash in saline-alkali soil will increase the degree of salinity.