fish die-off occurs in a pond near an agricultural field where fertilizer high in N and P has been sprayed. Describe the sequence of steps involved that would result in this die-off.

- Situation 3: Irrigation was used when soil moisture dropped to 1%. a. If irrigation begins when soil moisture reaches 49%, what application of nitrogen will result in the lowest percentage of protein in wheat grain? b. If irrigation begins when soil moisture reaches 34%, what application of nitrogen will result in the same protein content of wheat grain as begin- ning irrigation when soil moisture reaches 1%? c. If you irrigate when soil moisture reaches 34%, how much nitrogen should you apply to achieve a 13% protein content in wheat grain? d. Does Figure 1.45 indicate that, for nitrogen levels at 45 pounds per acre or higher, increased protein content in wheat grain is associated with higher or lower soil moisture? 14 1% 13+ 34% 12 49% 11+ 10- 6, 40 60 80 100 120 140 Nitrogen FIGURE 1.45 Protein content versus availability of nitrogen % Protein 20

- - - - - - - - - - -Analyze the principles of resilient agricultural infrastructure and the strategies used to support sustainable farming practices.

what are the nutitioal benefits of bt corn.