map of agricultural soil
... many lobed leaf 多裂叶 map of agricultural soil 农业土壤图 map of river system 河 青瓜除草机 系图 ...
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精准农业土壤采样技术是变量施肥技术获取土壤养分信息的重要手段，土壤养分测定值是生成施肥处方图的重要数据之一。
Soil sampling technique was one of ways of getting the information of soil nutrition. And the tested results are very important to making a reasonable prescription map.
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