How to supplement trace elements after walnut picking? Fertilization techniques?

Walnut in the application of post-harvest fertilizer, increase the application of trace element fertilizer, can improve the level of plant nutrition, promote flower bud differentiation, the second year of the flower bud pumping more pollen, strong vitality, can be normal pollination fertilization.Then how to supplement the trace elements after walnut harvest?Today I will introduce it to you.

How to supplement trace elements after walnut picking

Many friends encounter walnut nut degradation, shell without kernel phenomenon, is due to the plant lack of magnesium, boron, zinc, molybdenum, calcium, resulting in weakened pollen vitality, unable to pollinate fertilization.

The specific method is to remove weeds, dead branches and fallen fruits in the orchard in time within 5-10 days after walnut fruit picking, and collect them outside the garden and bury them deep.The post-harvest fertilizer was mainly biological bacteria fertilizer, high quality organic fertilizer and total element fertilizer of nitrogen, phosphorus and potassium.More than 5 years living plants, or over 50 kg of the trees, each composite bio-bacterial manure 0.5 0.75 kg, retting of rotten people 8-10 kilograms of livestock and poultry dung, NPK, nitrate, potassium sulphate (15-15-15) harvard or pure 1-1.5 kg of s-based compound fertilizer, calcium superphosphate or 0.75 1 kg calcium-magnesia phosphate fertilizer, potassium sulphate, 0.35 to 0.50 kg, 0.25 0.30 kg calcium nitrate, magnesium sulfate, borax, zinc sulfate, 0.15-0.20 kg each.After mixing all the fertilizer well, dig deep and wide rings of shallow trenches of 25-30cm each around the drip line of the tree crown, or dig 4-6 radial shallow trenches of 15-20cm deep, 25-30cm wide and 80-100cm long on the tree tray under the walnut crown.Spread fertilizer evenly in the annular or radial shallow trench, cover the soil can be.

Walnut after fertilization if the weather is dry, but also each pour water 80-100 kg, biogas slurry or retting rotten people and livestock manure, evenly spray applied on the cover of dirt or radial circular shallow groove shallow groove, not outflow water completely into the soil as appropriate, to promote the dissolution of fertilizer and conversion, supply the root absorption, improve the effect of postharvest fertilization.

In addition, in the walnut root fertilization at the same time, but also the root topdressing, from the leaf surface to supplement a variety of nutrients.After harvesting, the walnut must be sprayed with 0.1% borax, 0.1% magnesium sulfate, 0.1% zinc sulfate, 0.1% ammonium molybdate, 0.2% urea, 0.3% potassium dihydrogen phosphate, 0.5% calcium nitrate, and 600 times amino acid compound microfertilizer mixture on the leaf surface every 7-10 days. Continuous spraying for 2-3 times and evenly spraying all branches and leaves inside and outside the crown of walnut tree to begin to drip water is advisable.