Organic matter is invaluable as an addition to any soil whether applied as manure as a cover crop or as a soil-improvingcrop.
有机物施加于任何土壤都是很宝贵的,不管施加的是厩肥、覆盖作物或是改土作物。
2
The functions of SAPs were brief reviewed, such as the ability of improvingsoil structure and water retention, inhibiting water evaporation, promoting crop growth and output.