Growing a crop along with a perennial is known as?

Given below are the activities performed while cultivating a crop, arrange them from first to last: (A) Ploughing (B) Thinning (C) Seeding (D) Harvesting
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Which statement is correct about organic agriculture?

Allowed inputs for organic production are:

Which is not true about organic agriculture?

Which of the following statements is/are correct about cropping systems? (A) Inclusion of legumes in the cropping systems (B) Intercropping is a cropping system in which two or more crops are grown together on the same field during a growing season (C) Green manure crop is grown in the cropping system for the primary purpose of ploughing under to improve soil fertility (D) Multiple cropping is the sequential production of two or more different crops from the same field each year
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Which nutrient is considered as a macro nutrient?

Nano urea has been developed by

Given below are two statements: Assertion (A): Nitrogen is vitally important plant nutrient. Reason (R): Nitrogen is the basic constituent of life.