Choose the one best answer. Each question is worth 2 points. Bray Modified Mitscherlich s equation to account for pest damage. The rhizosphere is the soil surrounding rhizomes.
Soil texture is determined from the type of soil structure.
Temperature and the length of the growing season. Length of the growing season and available water. The idea that crop yield is not proportional throughout the range of supply of a nutrient but that the returns per unit of input decrease as nutrient supply increases was proposed by Liebig. Root functions include all but storage of carbohydrates. The largest soil particles are classified as sand.