The project looked at how a farmer can use drones and Agremo reports and analysis throughout the growing season to improve weed and disease management in a wheat crop. The farmer in question was interested in how precision farming could help improve his arable farming technique. The project showed him how drones could help with the management of his spring wheat crop. The project was focused on weed management in particular, and the growing threat of herbicide-resistant weeds.
By using Agremo analysis and a precision agriculture approach to weed management of the growing crop, the farmer was able to save the equivalent of $7.86 per acre on herbicides. This not only improved his profit margin but also reduced the risk of herbicide resistance and improved the environmental-sustainability of the operation.
Drone flights were carried out at key stages within the development of the crop, and the images were used to generate Agremo reports.
Arable area (eagle eye) analysis was performed before sowing to calculate the exact arable area and allow Bill to compare it with planted size. The data allowed him to optimize inputs, and immediately create savings. An elevation map also pointed out places with elevation differences in the field. Such differences need to be spotted to prevent waterlogging, nutrient washing, or the creation of an environment favorable to diseases and weeds.
Stand Count Analysis checked the germination rate. The plant count report provided information about the difference between the planted and emerged number of plants in the early stage and pointed out zones where plants did not emerge. This helped Bill to decide whether the crop had been successfully established, to replant or not, and provided a check on seed quality, an early indication of yield and identified low performing areas.
Weed Detection Analysis identified and quantified weed zones in the field. This data helped Bill optimize herbicide applications and achieve savings on areas where spraying was not needed, as well as prevented additional stress and yield loss.
Plant Stress Analysis allowed him to check the plant health status after spraying and fertilizing operations in mid-season. Plant stress analysis detects all the stress in the field and provides field insights about the stress in percentages, and the exact location of stress zones.
Yield potential analysis identifies and calculates areas of the field with high yield potential, low performing areas, and areas with no yield at all, with a special focus on lodging detection. This analysis helped to point out zones with good and poor yield, and enabled a more targeted approach to management.
The flight carried out at stage 30 revealed a significant weed infestation.
Drone flights were carried out through the growing season as planned and were able to generate a range of Agremo reports that helped Bill make decisions throughout the season. In the first report, eagle eye confirmed the exact field size and allowed the correct seed and fertilizer rates to be applied.
Weed analysis carried out after the second flight indicated that 39% of the field was infested by broad-leaved weeds, mainly henbit and purple dead nettle. The flight was able to provide a map indicating the infested areas which provided Bill with actionable information on weed control. He decided to apply two applications of post-emergence herbicides. In traditional agriculture, the entire area is treated in two treatments, however, armed with the information provided by the drone flight, Bill was able to treat only the affected areas of the field.
Broadleaf weeds growing in wheat fields can adversely affect crop production in many ways. Weeds compete with wheat for light, water, and minerals, which results in smaller crop yields. Weeds also interfere with crop harvest by raising moisture levels and contaminating the harvested grain.
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After the weed analysis, it was decided that herbicide was not required on the whole field since only 39% was infested. The Agremo analysis was able to provide a map of the infested areas and Bill was able to come up with a plan to apply treatment to the affected areas only.
Afterward, Bill sat down and calculated the implications of using the drone. Using a drone with Agremo meant that 35% of the area of the field received herbicide. It should also be noted that although drone scouting costs $4 per acre, in reality, traditional crop scouting would involve walking across the field, and would incur a labor cost.
In this case, opting for a precision agriculture approach saved Bill the equivalent of $7.86 per acre, or $249.63 in total. He reduced production costs, as well as experienced environmental benefits, but reduced the use of herbicides. Also, by leaving some areas of the field untreated, farmers can help minimize the risk of herbicide resistance by reducing the selection pressure for resistant strains of weed. Scouting after herbicide applications can also help to identify herbicide-resistant weed populations.
When compared to the traditional way of doing things, it is evident that precision agriculture offers significant cost savings for wheat producers, and Agremo can provide actionable information to make these savings.
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