Give differences : Chemical fertilizer and Biotic fertilizer
Chemical fertilizer | Biotic fertilizer |
$(1)$ Different types of chemicals are used in chemical fertilizer. | $(1)$ Different types of microbes are used in biotic fertilizer. |
$(2)$ Excessive use of chemical fertilizer increases pollution of land. | $(2)$ Biofertilizer makes the soil fertile and increases crop yield. |
$(3)$ Nitrogen, phosphorus potassium etc are used as a source. | $(3)$ Bacteria, fungi and cynobecteria are used as a source. |
$(4)$ Chemical fertilizer is harmful for environment. | $(4)$ Biofertilizer is advantageus for environment. |
Aquatic fern which is an excellent biofertilizer
Which of the following cyanobacteria can fix atmospheric nitrogen?
$I.$ Anabaena
$II.$ Oscillatoria
$III.$ Nostoc
Choose the correct option
Which of the following is not a symbiotic nitrogen fixing bacterium?
Mycorrhiza represents
Which of the following is non-symbiotic biofertilizer