What Are Biofertilizers
Trending Questions
The botanical name of the peepal tree is
Cajanus cajun
Ficus religiosa
Pisum sativum
Ficus benghalensis
Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.
An organism used as a biofertilizer for raising soybean crops is?
Nostoc
Azotobacter
Azospirillum
Rhizobium
- thermoacidophiles
- heliophytes
- halophiles
- methanogens
Azotobacter and Beijerinckia are examples of
Symbiotic nitrogen fixers
Disease causing bacteria
Ammonifying bacteria
Non-symbiotic nitrogen fixers
Is nostoc a free-living nitrogen fixer?
How do biofertilisers enrich the fertility of the soil?
- acts as a catalyst in transamination
- transports oxygen to the root nodules
- provide energy to the nitrogen fixing bacteria
- acts as an oxygen scavenger
- a cyanobacterium like Anabaena sp living in cavities of Azolla leaves
- Symbiotic bacteria like Azotobacter which fix atmospheric nitrogen
- farm yard manure consisting of mixture of cattle dung and crop
- green manure in which quickly growing crop is cultivated and ploughs under
Name the following:
A farming practice where crops are grown without using pesticides and fertilizers.
Why should we wash fruits and vegetables before consumption?
Which of the following statement is not true for organic manure?
It enhances the water capacity of the soil
It has a balance of all nutrients.
It provides humus to the soil.
It improves the texture of the soil.
Assertion: Compost is formed after decay of vegetable matter and organic refuse.
Reason: Green manure is a fertilizer consisting of growing plants that are ploughed back into the soil.
- Both the assertion and reason are true and the reason is the correct explanation for the assertion.
- Both the assertion and reason are true but the reason is not the correct explanation of the assertion.
- Assertion is true but the reason is false
- Both the assertion and reason are false.
- Sporeine
- Devine
- DDT
- Organophosphate
- Improves soil fertility
- Maintains the natural habitat of the soil
- Provides specific nutrients in high concentrations
- Prevents eutrophication
Which of the following is mainly produced by the activity of anaerobic bacteria on sewage?
Marsh gas
Propane
Mustard gas
Laughing gas
- Azolla and BGA
- Nostoc and legume
- Rhizobium and grasses
- Salmonella and E.coli
Organic matter formed by the decomposition of plant wastes is called ______________.
Name one mixed fertilizer.
- Rhizobium
- Nostoc
- Mycorrhiza
- Agrobacterium
What organisms do the nitrogen fixation for plants?
STP (वाहितमल उपचार संयंत्र) में मिथेनोजेन की क्रियाविधि
- In aeration tank
वातन टैंक में होती है - In anaerobic sludge digester
अवायवीय आपंक संपाचित्र में होती है - In primary settling tank
प्राथमिक निःसादन टैंक में होती है - During primary treatment process
प्राथमिक उपचार प्रक्रिया के दौरान होती है
(a) Single cell protein(SCP)
(b) Soil
What is the basic difference between farmyard manure and compost?
