Different soils have different lyrical properties. Soil moisture is an important parameter affecting plant growth. It can be monitored and analyzed by using soil moisture monitor during daily planting. Under the condition that there is no combination, it can be analyzed by ancient methods. Lyrics are generally divided into dry soil, Fangqi, Huangqi, Jieyu, and black scorpion. In the conventional soil, the nature of the soil can be divided into sandy soil, loamy soil, and viscous soil. How are these three different soils? Do you understand the changes in your grievances? Related equipment: Soil moisture detection system (http://)
R125 is a refrigerant, mainly used in the
fields of air conditioner, industrial cooling and cooling water units; used for
confecting refrigerants like R404A, R407C, R410A and R507, etc. for R22 and
R12; also as fire extinguishing agent for subsitution of Hyloon series agents, which is a replacement refrigerant of R12 and R22
First, the inspection of sandy soil
l. Dry soil. The hand touches the feeling of no moisture, the dry soil is in the form of a block or a single pull, and the water content is about 3%. After sowing, the seedlings are not solved, and they must be poured before they can be planted. 2 The ash hand touch is slightly moist, and the clods are scattered when touched. The moisture content of the soil is about 8-10%. It is the critical sensation of sowing, and the seed is not protected. It is necessary to resist the single-snap broadcast, and water the water to make up the sputum. 3. Astragalus: The hand-picked soil has a distinct moist feeling, and the soil moisture content is about 12%. Can be robbed and planted. 4. Brown Pelican: Hand kneading the soil can form a group, the water on the hand is wet, and the throw is not broken. The soil water content is about 16%, which is suitable for sowing. 5. Black cockroaches: The soil is sticky, and there is water left in the palm after kneading the soil. It can barely be kneaded into a soil strip. The soil moisture content is about 20%.
Second, the test of soil soil
l. Dry soil: The feeling of touching the hands is not wet. The upper soil is firmer and can be pinched. The water content of the soil is about 4%, and it can not be emerged after sowing. It needs to be poured before it can be planted. 2. Ashes: The hand touches the feeling of being slightly wet. When the pinch is pressed, the clods are easy to disperse, and the soil water content is about 10%. 3. Astragalus, the hand touches a moist feeling, the soil is taken into a group, the song is thrown, the soil water content is 12-14%, and it can be planted. 4. Brown Pelican: Hand kneading soil can form a group, landing is not easy to disperse, the amount of soil water is about 16-18%, which is suitable for sowing. 5. Black cockroaches. Stick on the hand, can be squeezed into a mud strip, the ground does not scatter, the soil moisture content is about 20-22%, which is the upper limit of the sensation of suitable seeding.
Third, the test of sticky soil:
1. Dry soil: The feeling of touching the hands without wetness is hard on the soil. It is very difficult to pinch. It has a pain, and the water content is about 5-100%. 2. Ashes: The hand touches the feeling of being slightly wet. It is necessary to use force to crush the clods. The soil moisture content is about 10-12%, which can be barely planted. 3. Astragalus: The hand-picked soil is obviously moist and can be kneaded into a dough. The soil moisture content is about 14-16%. 4. Brown Pelican: Hand kneading soil can be stripped, there are water marks on the hand, and the soil moisture content is about 18-20%. 5. Black drop: When the soil is squeezed by hand, the water can be squeezed out, the soil is sticky, and the moisture content of the soil seat is about 22-24%.
R125 Refrigerant Gas,R125 Refrigerant Calibration Gas,Alternative Refrigerant R125,Refrigerant R125
ZHEJIANG ZHONGLAN REFRIGERATION TECHNOLOGY CO.,LTD , http://www.uiszl.com