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Точное Земледелие

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Точное земледелие - технологии для сбалансированного внесения удобрений и гербицидов на конкретном участке поля

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How-to use LandMapper and consumer-grade GPS data-logger to quickly map salinity on farm fields

GPS waypoints in Google EarthTask on hand: estimate salinity level on fields planned for rice next year. Six fields with total area of 322 acres were selected by farmer.

Equipment on hand: two LandMappers with different size probes attached (measuring electrical conductivity (EC) down to ~ 8” and 18”), Columbus GPS data-logger, all-road vehicle or “Mule”. Three people: farmer driving a '”mule” and recording data on paper, one person measuring with Landmapper at 18” depth, other person measuring EC with LandMapper to 8” depth and recording POI or way points with GPS. Results: 30 points recorded in less than 1.5 hour (including about 45 min break to wait out the rain). EC in the field varied from 5 mS/m to 106 mS/m on surface; and from 19 mS/m to 400 mS/m in deeper layer.

Местоположение

Farm Winnie, TX 29° 36' 14.6448" N, 94° 21' 7.0524" W
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