ACROSS | DOWN |
2 Soil's ability to support plant growth; includes presence and proportion of nutrients | 1 Water moving from soil into plants and escaping into the air as water vapor through stomata |
3 1st critical attribute for irrigation; soil's capacity for water to soak in | 2 Can reverse osmotic pressure and pull water out of plants |
6 PH most plants prefer soil to be near | 4 Packing of the soil by excessive traffic that blocks aeration |
7 Fertilizers that are manmade chemical formations and more prone to leaching | 5 Necessary because absorbed nutrients disappear with crop harvest |
11 3rd critical attribute for irrigation; how much held water returns to the air | 8 Loss of soil nutrients to washing water |
12 Chemical and physical breakdown of rock; initial source of soil phosphate, potassium and calcium | 9 2nd critical attribute for irrigation; this capacity of soil to retain water after infiltration |
14 Diffusion of oxygen into and carbon dioxide out of loose, porous soil; blocked by overwatering | 10 Breakdown of this is the continuing source of soil nutrients like phosphate, potassium and calcium |
15 Other name for ion exchange capacity; soil's ability to hold nutrients until plants use them | 13 These fertilizers include manure and compost |