The first result is better for apples.

A: The initial results of apple tree fertilization should be heavy phosphorus with nitrogen and potassium. The purpose of fertilization at this stage is to promote the flower bud differentiation of fruit trees, to strengthen flower buds, to strengthen the crown, to promote fruit and fruit; for the fruiting period, the fertilization of fruit trees requires NPK, potassium. The demand is large. The purpose of fertilization at this stage is to rationally fertilize and ensure continuous high yield and stable yield. The initial fruit tree should be added with diammonium 1~2 kg and potassium chloride 0.5~1 kg, and each plant should be added with diammonium 2 during the fruiting period. ~ 3 kg and potassium chloride 1 ~ 2 kg, more compound fertilizer, phosphorus and potassium fertilizer, appropriate amount of nitrogen fertilizer.

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Industrial Laser Distance Sensor

Industrial Laser Distance Sensor, we also call it secondary development laser distance module, which support TTL level and CMOS. The laser range sensor can be widely used in professional surveying, mapping, construction, robots, hunting arrows, industrial monitoring and automated measurement applications in electricity, transportation, etc. Our laser distance module supports data communication with RS232, USB with a simple adapter. The results of laser distance sensor can be evaluated with Arduino. We are always looking ahead, hoping we can make every measurement simple in life!

Parameters of M703A:

Laser Distance RS232,Arduino Distance Module,Laser Module RS232

Chengdu JRT Meter Technology Co., Ltd , https://www.rangingsensor.com