Poplar roots are deeply rooted and resistant to water, moisture, and moisture. To make poplars more robust and to increase resistance to pests and diseases, the following methods can be used:
From 1 to 2 meters away from the trunk, play 4 to 5 holes with a diameter of 5 to 6 cm and a depth of about 1 meter to ensure that all the water and fertilizer penetrate into the soil. Apply about 25 kg of nitrogen fertilizer per acre. fat. This will greatly shorten the cycle of poplar production, resulting in considerable economic benefits.
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