classification of manures
Answers
Explanation:
A. Bulky Organic Manures:
Bulky organic manures generally contain fewer amounts of plant nutrients as compared to concentrated organic manures. The concentrated organic manures are mainly derived from raw materials of animal or plant origin.
1. Farm Yard Manure (FYM):
The term farm yard manure refers to the well-decomposed mixture of dung, urine, farm litter (bedding material) and left over or used up materials from roughages or fodder fed to the cattle. The FYM collected daily from the cattle shed consisting of raw dung and part of the urine absorbed in the refuse.
Newly collected and stored FYM is fresh as against well decomposed FYM which has been stored for a sufficient period of time to allow its decomposition to completion
2. Green Manuring:
Green manuring can be defined as a practice of ploughing or turning into the soil un-decomposed green plant tissues for the purpose of improving soil physical chemical and biological environments
