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선택한 단어 수는 30입니다.
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최대 10 단어까지만 선택 가능합니다.
제안 방법
- For the above analytical method, measurements of soil nitrate were compared at different soil moisture content controlled with air dry, 20%, and 40% of maximum water holding capacity (MWHC) of experimental soils. And measurement of each analytical procedure was repeated by 7 times and compared by statistical analysis.
- However the weighing procedure of soil sample under the on-farm condition is a limiting factor for the quick test procedure of soil niti'ate. The intent of the quick test procedure could be modified to estimate soil nitrate without the necessity of accurately weighing or drying soil. Therefore, the goal of this reseai'ch was to seek a suitable sampling method of soil for test strip method of soil nitrate as areal time analytical procedure under the on-farm condition.
대상 데이터
- Twelve soil samples with nitrate nitrogen concentration of 45 to 281 mg kg-1 and 2.19 to 2.53 g cm 3 of particle density (PD) were collected from polyethylene film house in the fields of Chungbuk provincial area (Table 1). The quick test procedure by test strip reflectometer was compared with nitrate ion electrode method as a conventional laboratory technique for the testing nitrate concentration of 12 experimental soils and another 126 soils taken from polyethylene film houses in Chungbuk provincial area.
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