A farming technique used by a local farmer unexpectedly inhibits the absorption of oxygen through the roots of her potatoes. Which farming technique did she likely use?

nitrate fertilizing

Explanation:

Ammonium nitrate is a famous fertilizer among farmers, it is produced through oxidation of ammonia to nitric acid, after this neutralization of the nitric acid with ammonia follows. The neutralization helps to achieve 80 to 90% concentration of solution. After application of the fertilizer, there will be absorbtion of nitrogen by Plants from the soil in a nitrate (NO3−) form as well as ammonium (NH4+) form. it should be noted that nitrate fertilizing is a farming technique used by a local farmer unexpectedly which inhibits the absorption of oxygen through the roots of her potatoes.

i think its through the fallopian tube