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question_answer1) The biofertilizer present in the roots of legumes is
question_answer2) The chemical fertilizer required for better rhizobial nitrogen fixation is
question_answer3) A green manure is
question_answer4) Which of the following plants are used as green manure in crop fields and in sandy soils [CBSE PMT 2003]
question_answer5) The nitrogen fixing symbiotic organism present in Azolla is
question_answer6) VAM is
question_answer7) A nitrogen fixing bacterium that forms a loose association with the roots of crop plants is [Kerala PMT 2001]
question_answer8) A legume having symbiotic association with two nitrogen fixing bacteria (Rhizobium and Aero rhizobium) is [MP PMT 1987]
question_answer9) Composited manure is formed from
question_answer10) Biofertilizers include
question_answer11) Mycorrhiza is a symbiotic association between [Pb. PMT 1998]
question_answer12) Azolla enriches rice fields with nitrogen due to its association with [Wardha 2001, CET Chd.2001]
question_answer13) Green manuring enhances crop yield by [RPMT 1986]
question_answer14) The best fertilizer for paddy is [APMEE 1987]
question_answer15) What is required for nitrogen fixation by Rhizobium? [DPMT 1988; APMEE 1989]
question_answer16) Root nodules for nitrogen fixation of a non-leguminous tree possess [BHU 1994]
question_answer17) Which is correct [CBSE PMT 1994]
question_answer18) VAM represents [HP PMT 1994]
question_answer19) Mycorrhiza represents [CBSE PMT 1994]
question_answer20) Which element plays an important role in nitrogen fixation? [CBSE PMT 1995]
question_answer21) Nitrogen fixation is [APMEE 1996; CPMT 1996]
question_answer22) Leghaemoglobin occurs in [Bih. PMT 1996]
question_answer23) Azotobacter and Bacillus polymyxa are [CBSE PMT 1996]
question_answer24) Crop rotation is carried out for [AFMC 1996; BHU 2004]
question_answer25) Which disease is caused in children due to excessive use of nitrate fertilizers [MP PMT 1996]
question_answer26) Which of the following is free living aerobic and non-photosynthetic nitrogen fixing bacterium [CBSE PMT 1997, 1998]
question_answer27) Biofertilizers include [CBSE PMT 1997, 2001]
question_answer28) Yield of paddy field can be increased by application of [MP PMT 1997; CBSE PMT 1999]
question_answer29) Green manure plants belong to [CET Chd. 1997]
question_answer30) Which of the following can use molecular nitrogen as nutrient [MP PMT 1998]
question_answer31) Symbiotic nitrogen fixation in root nodules of some legumes is caused by [AFMC 1998]
question_answer32) If wheat field is inoculated with Rhizobium [Pb. PMT 1998]
question_answer33) Which one is a non-symbiotic nitrogen fixer [Pb. PMT 1998]
question_answer34) Farmers have reported 50% higher yield of rice by using biofertilizer [CBSE PMT 1998]
question_answer35) Aquatic fern which is an excellent biofertilizer [CBSE PMT 1999, 2000,01]
question_answer36) Which is correct about nitrogen fixation by legumes. They fix nitrogen through [AFMC 1999]
question_answer37) Rhizosphere is the region where [AMU 1987; CPMT 1992]
question_answer38) Biofertilizers [BVP 2000]
question_answer39) VAM is important for [Kerala PMT 2000]
question_answer40) Leghaemoglobin takes part in [Kerala PMT 2000]
question_answer41) Most famous nitrogen fixing bacterium/biofertilizer is [Kerala PMT 2000; JIPMER 2000]
question_answer42) Azolla possesses symbiotic association with [Wardha 2001]
question_answer43) Which one is a bio fertilizer [BVP 2001]
question_answer44) Azolla is used as biofertilizer as it has [DPMT 2001]
question_answer45) Cow dung is appropriately used as [DPMT 2001]
question_answer46) Red pigment (Leghaemoglobin) having affinity for oxygen is present in the roots of [CBSE PMT 2001]
question_answer47) Some blue green algae can be used as biofertilizer as they are [KCET 2002]
question_answer48) Organic forming is the technique of raising crops through use of [AMU 2003]
question_answer49) Organic forming does not include [Wardha 2003]
question_answer50) Mycorrhiza is helpful in [CPMT 2003]
question_answer51) Agricultural chemicals include [Pb. PMT 2000]
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