Question

cleo has a vegetable garden and wants to increase the amount of nitrogen in the soil. how can she most likely do this? add several soybean plants to her garden decrease the amount of fertilizers she uses harvest the vegetable plants continuously reduce the number of decomposers that live in the soil

Explanation:

Soybean plants are legumes. Legumes have a symbiotic relationship with nitrogen - fixing bacteria (Rhizobium). These bacteria convert atmospheric nitrogen (\(N_2\)) into ammonia (\(NH_3\)) which enriches the soil with nitrogen. Decreasing fertilizers would reduce nitrogen input (since many fertilizers contain nitrogen). Continuously harvesting vegetable plants removes plant biomass (which may contain some nitrogen in plant tissues) from the garden system. Reducing decomposers would slow down the decomposition of organic matter (which releases nitrogen back into the soil as part of the nitrogen cycle).

Answer:

add several soybean plants to her garden