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Question 31
Fill in the blanks

(a) A total of ___ nutrients are essential to plants.

(b) ___and ___ are supplied by air to plants.

(c) ___ is supplied by water to plants.

(d) Soil supply ___nutrients to plants.

(e) ___ nutrients are required in large quantity and called as ___.

(f) ___ nutrients are needed in small quantity for plants and are called ___.

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Solution

(a) 17

(b) Carbon and Oxygen

(c) Hydrogen

(d) 13

(e) Nine, macronutrients

(f) Eight, micronutrients

  • There are seventeen most important nutrients for plants. Plants must obtain the following mineral nutrients from their growing medium.
  • The macronutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), carbon (C), oxygen(O), hydrogen (H)
  • The micronutrients (or trace minerals): iron (Fe), boron (B), chlorine (Cl), manganese (Mn), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni)
  • All plants require 17 elements to complete their life cycle with the exception of C, H, and O, which plants obtain from air and water, plants derive the remaining 14 elements from the soil.

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