Life (cereal) Life (cereal) Life, stylized as life®, is a breakfast cereal formerly made solely of whole grain oats, but now also containing sugar, corn flour, whole wheat flour, and rice flour. It was introduced in 1961 by the Quaker Oats Company. The cereal is distinguished by its characteristic brown checkered squares, with a finer pattern than Chex cereal. Advertisements for Life cereal sport the slogan ""Life" is full of surprises". , with the advent of numerous specialty varieties, the original cereal is now marketed as "Life Original Multigrain Cereal" with 20 grams of whole grains promoted in a red heart symbol.
Crop residue whereas cereal straw would reduce next year's soil supply of available nutrients. Over time, the nutrients fixed by soil microbes and humus are released and available to crops. Nutrients from residue are not fully recovered by crops. Just like fertilizer nutrients, nutrients released from crop residue into the soil are susceptible to losses such as leaching (N and S), denitrification (N), immobilization (N, P, K and S), and fixation (P and K). The efficiency of nutrient uptake by crops from fertilizers or residue release is generally thought to be similar. For example, about 50 percent recovery of N in the