Pregnancy Weight Gain: Facts. 1  For women who were a normal weight before pregnancy with a BMI of 18.5-24.9 the recommended weight gain guideline is 25-35 pounds. 2  Women who are underweight pre-pregnancy with a BMI of less than 18.5 should gain between 28-40 pounds unless your health care provider says differently.
Tilth generally refers to the physical condition of the soil as it relates to plant growth. Favorable tilth implies good conditions for seed germination and root proliferation, allowing crops to thrive.
Acidic soil is any soil with a pH balance below 7. Soils that are below 7 are acidic while those with a pH balance above 7 are considered to be alkaline. Knowing the pH balance of the soil is important because certain plants and crops grow best in a certain type of soil.