Improvement in food resources · खाद्य संसाधनों में सुधार
A free Biology lesson for Class 9 children.
Kharif crops such as paddy, maize and cotton grow in the rainy season.
Rabi crops such as wheat, gram and mustard grow in the winter season.
Manure and fertilisers supply nutrients such as nitrogen, phosphorus and potassium.
Growing two or more crops together on the same field is called mixed cropping.
Growing different crops one after another on the same land is crop rotation.
Keeping bees for honey is called apiculture.
Rearing fish is called pisciculture, and poultry gives us eggs and meat.