Based on synchronous sampling of soil and crops from 39 counties of Chongqing, 456 soil samples and 936 crop samples (including stem, grain of paddy and corn) were collected.

通过对重庆市全境范围39个区县农田土壤及主要粮食作物进行同步取样调查，获取土壤样品456份，水稻、玉米植株及籽粒936份。

youdao

Result of forest soil sampling indicates that: design-based approach is mainly based on the traditional investigation, the number of samples and study area are mostly considered by this approach.

森林土壤取样的研究结果表明：基于设计的取样策略主要建立于传统的调查取样的基础上，需要多少样本，研究区应设定多大范围是设计考虑的主要内容。

youdao

Impacts of fertilization and sampling position on soil moisture and aboveground biomass of Medicago sativa were studied in a long term, in situ experiment.

基于苜蓿长期连续种植定位试验，研究了不同施肥与采样位置差异对苜蓿草地地上部分生物量和土壤水分的影响。

youdao

It also carries the risk of producing an inaccurate picture of the overall distribution of moisture, as the spots chosen for sampling may be considerably damper or drier than the soil just a few metres away.

ECONOMIST: Winemaking and radar