Trees


Agroforestry—planting trees beside and among field crops—can complement conservation agriculture by preventing soil erosion and boosting soil fertility. Trees can also provide fuelwood, fodder, and medicinal products.


Fuel


Weeds Weeds can be a problem, especially when a farmer is transitioning a field from tillage to no-tillage farming. Herbicides and herbicide- resistant crops may be necessary.


Farmers’ fuel savings can be significant: they can stop using fuel for plowing and reduce the amount of fuel used to pump water.


PUMP


Fertilizer


Conservation agriculture can make more efficient use of fertilizer because the seed drill allows fertilizer to be placed precisely where it’s needed. In India’s rice-wheat farming areas, fertilizer efficiency has improved by 10–15 percent.


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ential, CIMMYT, Obregon, Mexico, March 20–24, 2006; B. Gerard, “Conservation Agriculture Research at CIMMYT,” presentation made at the ISPC meeting, NASC, New Delhi, March 27, 2012; B. Sims, T. Friedrich, A. Kassam, and J. Kienzle, read of Conservation Agriculture: Justification, Sustainability, and Uptake,” International Journal of Agricultural Sustainability 7, no. 4 (2009): 292–320.


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