Farm (field) | UR | UF | SUF |
|---|
CGR consumption /L | Cost /$ | CGR consumption /L | Cost /$ | CGR consumption /L | Cost /$ |
|---|
1(A) | 25.2 | 151.2 | 18.7 | 111.9 (–35%) | 18.3 | 109.6 (−38%) |
1 (A) | 25.2 | 151.2 | 18.9 | 113.2 (–34%) | 18.6 | 111.9 (−35%) |
2 (B) | 12.3 | 74.0 | 9.3 | 56.1 (−32%) | 8.7 | 52.2 (−42%) |
2 (B) | 12.3 | 74.0 | 9.2 | 55.0 (−35%) | 8.6 | 51.8 (−43%) |
3 (C) | 27.5 | 164.9 | 19.8 | 118.9 (−39%) | 19.8 | 1178.5 (−39%) |
3 (C) | 27.5 | 164.9 | 20.1 | 120.6 (−37%) | 19.6 | 117.5 (−40%) |
- UR refers to the uniform rate of application, UF and SUF refer to the variable-rate approaches for all fields in Date 1 and 2, respectively. A simplified rate of 0.16 L·hm−2 was used for the UR, while rates of 0.0, 0.15, and 0.20 L·hm−2 (actual consumption in some of the fields during the 2022–2023 agricultural season) were applied for classes 0, 1, and 2, respectively, in both UF and SUF, to determine crop growth regulator (CGR) total consumption. Cost in UR was considered reference so the UF and SUF costs could bring, besides the absolute value, the variation (%) from the UR approach. For UF/SUF, the consumption is presented as the sum across all classes, giving the total consumption for each field. The total cost of input application in the field was calculated by associating the consumption with the average CGR price (Mepiquat chloride at 6 $·L−1)
