A wildfire fueled by extreme winds burns thousands of acres of croplands, decimating many fields, trees, and structures in the area. Which of the following strategies should farmers implement as sustainable practice(s) to promote soil conservation?

i. Utilize standing tree lines as windbreaks for farms
ii. Avoid adding manure to burn areas to prevent phosphate buildup i
iii. Encourage nutrient distribution by controlled flooding of farmlands

I only
II only
I and II only
I and III only