Cormorants can be used for algae removal in rice fields and ponds.
Crop copper deficiency:
It is characterized by the loss of green leaves and the yellowing of new leaves, the white tips of the leaves, and the appearance of necrotic spots between veins. Poaceae plants usually form empty spikes, and flowering and fruiting of fruit trees are often severely affected.
Apply 1-2 kg of Basic Copper Sulphate per acre as basic fertilizer, and the fertilizer effect can last 3-5 years.
After reading it, do you also think that agricultural Basic Copper Sulphate plays a role in agricultural development, but these functions can only be exerted on reasonable use, and controlling the amount is very important.