Humus often enhances the water and nutrient-retaining properties of topsoil.Which of the following might increase the humus content of a soil? Check all that apply.

Question

Quizplus · Accepted Answer

Humus is organic matter that has decomposed to a point where it is resistant to further breakdown. Mushroom compost, leaf litter, and fish meal all contribute organic material to the soil, which can decompose into humus, thereby increasing its content. Ground limestone and phosphate fertilizer, on the other hand, are inorganic amendments and do not contribute to the humus content of soil.

Humus Often Enhances the Water and Nutrient-Retaining Properties of Topsoil