©NovelBuddy
PREVIEW
... ts, almost all of which are contained in plant ash.
The main component of plant ash is potassium carbonate. When the same amount of potassium is applied to plant ash, the fertilizer effect is better than that of chemical potassium fertilizer.
Therefore, it is an inorganic farmyard manure with a wide range of sources, low cost, complete nutrients and obvious fertilizer efficiency.
Ying Zheng understood this truth, but the civil and military officials of the Manchu Dynasty did ...
YOU MAY ALSO LIKE






























