Poplar Point Fertilizer Technology
Lysozyme Enzyme,Enzyme for Food,Liquid Acid Cellulase,Glycoside Enzymes Sunson Industry Group Co., Ltd , https://www.sunsonchinaenzymes.com
July 05 05:12:46, 2020
The poplar root system is mainly distributed in 0-20 cm surface soil (about 75%), and the top dressing depth should be 15-20 cm. Every year, before the fast growing period of poplar (generally at the end of April and beginning of May), dig a hole in the east, south, west and north direction of the sapling trunk 50 centimeters, apply the fertilizer into the pit, cover the soil, and apply nitrogen and phosphorus. Potassium compound fertilizer 250 to 500 grams. After the trees are slightly larger, they can combine loose soil to open a shallow ditch on each side of the tree line and apply the fertilizer into the ditch.