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1) It is recommended that you use a three to four year crop rotation when growing dry beans. Small grains and corn are in the grass family and work well in the rotation with dry beans. The crops of the grass family do not carry over disease that affects dry beans. Unshelled corn cobs from the previous year when picked up by the dry bean harvest equipment and/or volunteer corn can create problems if corn gets in your load of dry beans. THERE IS ZERO TOLERANCE FOR CORN IN YOUR LOAD. 2) Potatoes and Sugar Beets are also used in the dry bean rotation. These crops are less susceptible to white mold, but can increase the chance for problems with root rots. Dry beans usually follow these crops in the rotation, generally due to the higher levels of soil fertility. This does not mean you do not have to soil test. 3) Soybeans can be used in the rotation, but can host white mold that effects dry beans. If dry beans follow soybeans; volunteers can be a problem. Just like corn; THERE IS ZERO TOLERANCE FOR CORN IN YOUR LOAD. Dry beans cannot proceed or follow soybeans, sunflowers ,canola, safflower or crambe to be eligible for crop insurance. Dry beans can not follow potatoes to be eligible for crop insurance. 4) Crops such as sunflower, canola and mustard should be avoided in the rotation. These crops are host crops for white mold. Dry beans are highly susceptible to white mold. The crop can be decimated if the environmental conditions are right and levels if white mold are high. 5) Dry beans in close rotation with potatoes can cause an increase in root inoculums in the soil. A minimum of 3 to 4 year rotation is recommended, with a 4 year rotation being preferred. 6) Dry beans should never follow dry beans. White mold, root ruts, rust, anthracnose, and bacterial diseases can be carried over to next years bean crop. The dry beans planted on last years dry bean ground become ineligible for crop insurance. |
