Triticum compactum dying in the winter. Triticum compactum Triticum compactum or club wheat is a species of wheat adapted to low-humidity growing conditions. "T. compactum" is similar enough to common wheat ("T. aestivum") that it is often considered a subspecies, "T. aestivum compactum". It can be distinguished by its more compact ear due to shorter rachis segments, giving it its common name. In the United States of America, nearly all "T. compactum" is grown in dry areas of the Pacific Northwest. "T. compactum" is a hexaploid with 21 chromosomes. "T. compactum", like other club wheats, has been selectively bred for its lower
Crop residue annual global amount of collectable rice straw (not total produced straw) for biofuel production was estimated about 249 million tonnes, that could approximately produce 355.78 kilotonnes of hydrogen and 11.32 million tonnes of lignin by the proposed organosolv technology and it was found that China contributes to about 32% of global potential capacity to produce biohydrogen from rice straw. Nutrients in most crop residue are not immediately available for crop use. Their release (called mineralization) occurs over a period of years. The biological processes involved in soil nutrient cycles are complex. As a rough guide, cereal straw releases about 10