Fill in the blanks. --1.When the______ is more in the soil, the use of phosphorus neutralises the soil and benefits the crop. 2.Rhizobium and blue green algae are called____________
Fill in the blanks. --1.When the______ is more in the soil, the use of phosphorus neutralises the soil and benefits the crop. 2.Rhizobium and blue green algae are called____________
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Answer:
1.minerals
2.symbiotic relationship