| A rapid measurement method of soil water content in the field using RR-7730M soil hygrometer |
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| DOI：10.7606/j.issn.1000-7601.2012.05.31 |
| Key Words: rapid measurement of RR-7730M drying oven method soil water content |
| Author Name | Affiliation | | GAO Chaonan | College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China | | ZHAO Pengfei | College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China | | LIU Quanqing | Hebei academy of Agricultural and Forestry Sciences, Shijiazhuang, Hebei 050051, China | | ZHANG Hongyan | College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China
Experimental Station of Quzhou, Handan, Hebei 057250, China | | LI Xiaolin | College of Resources and Environmental Science, China Agricultural University, Beijing 100193, China |
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| Abstract: |
| Rapidly measuring the soil water content in the field is very important to the water and fertilizer management. In this paper, we using RR-7730M soil hygrometer, conducted rapid determination in the field, and simulated experiment of different water content soil in the lab, compared with the results of classical drying oven method. The results showed that in the field and indoor simulation, rapid measurement using RR-7730M soil hygrometer and drying oven method both reach significant correlation. The correlation coefficients respectively are r=0.857**（n=240） and r=0.982**（n=27）. The method of rapid measurement
is feasible and practical. It is worthy to be popularized. |
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