The two sustainable farming techniques from the options provided are:
-
Rotating crops each year - This practice helps maintain soil fertility, reduce pest and disease pressure, and improve overall farm productivity.
-
Planting trees in between rows of crops - This technique, often referred to as agroforestry, enhances biodiversity, improves soil quality, and provides habitat for beneficial organisms.
The other options, such as planting a single crop over a large area and tilling soil frequently, are generally not considered sustainable practices.