{"id":89618,"date":"2025-06-01T10:09:12","date_gmt":"2025-06-01T10:09:12","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=89618"},"modified":"2025-06-01T10:09:12","modified_gmt":"2025-06-01T10:09:12","slug":"the-three-primary-soil-micro-nutrients-are","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-three-primary-soil-micro-nutrients-are\/","title":{"rendered":"The three primary soil micro-nutrients are"},"content":{"rendered":"

The three primary soil micro-nutrients are<\/p>\n

[amp_mcq option1=”carbon, oxygen and water” option2=”copper, cadmium and carbon” option3=”nitrogen, phosphorus and potassium” option4=”boron, zinc and magnesium” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CAPF – 2013<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is C. Nitrogen, Phosphorus, and Potassium are the three primary macronutrients required by plants.
\n<\/section>\n
\nPlants require various nutrients from the soil for healthy growth. These are broadly classified into macronutrients (needed in larger quantities) and micronutrients (needed in smaller quantities). The three most crucial macronutrients, often called primary nutrients, are Nitrogen (N), Phosphorus (P), and Potassium (K). While the question asks for “micro-nutrients”, option C lists the standard “primary” nutrients. Given the options, NPK is the only plausible set of primary nutrients listed.
\n<\/section>\n
\nOther macronutrients include Calcium (Ca), Magnesium (Mg), and Sulfur (S). Micronutrients include Iron (Fe), Manganese (Mn), Zinc (Zn), Copper (Cu), Boron (B), Molybdenum (Mo), and Chlorine (Cl). Option D lists some micronutrients, but NPK are universally referred to as the primary nutrients. The question’s wording “primary soil micro-nutrients” might be slightly imprecise, potentially intending to ask for primary nutrients or listing common soil nutrients from which to choose the primary ones. In the context of soil fertility and fertilizers, NPK are the standard primary nutrients.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

The three primary soil micro-nutrients are [amp_mcq option1=”carbon, oxygen and water” option2=”copper, cadmium and carbon” option3=”nitrogen, phosphorus and potassium” option4=”boron, zinc and magnesium” correct=”option3″] This question was previously asked in UPSC CAPF – 2013 Download PDFAttempt Online The correct option is C. Nitrogen, Phosphorus, and Potassium are the three primary macronutrients required by plants. Plants … <\/p>\n

Detailed SolutionThe three primary soil micro-nutrients are<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1085],"tags":[1467,1117,1238],"class_list":["post-89618","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1467","tag-biology","tag-plant-nutrition","no-featured-image-padding"],"yoast_head":"\nThe three primary soil micro-nutrients are<\/title>\n<meta name=\"description\" content=\"The correct option is C. Nitrogen, Phosphorus, and Potassium are the three primary macronutrients required by plants. Plants require various nutrients from the soil for healthy growth. These are broadly classified into macronutrients (needed in larger quantities) and micronutrients (needed in smaller quantities). The three most crucial macronutrients, often called primary nutrients, are Nitrogen (N), Phosphorus (P), and Potassium (K). While the question asks for "micro-nutrients", option C lists the standard "primary" nutrients. Given the options, NPK is the only plausible set of primary nutrients listed.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/the-three-primary-soil-micro-nutrients-are\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The three primary soil micro-nutrients are\" \/>\n<meta property=\"og:description\" content=\"The correct option is C. Nitrogen, Phosphorus, and Potassium are the three primary macronutrients required by plants. Plants require various nutrients from the soil for healthy growth. These are broadly classified into macronutrients (needed in larger quantities) and micronutrients (needed in smaller quantities). The three most crucial macronutrients, often called primary nutrients, are Nitrogen (N), Phosphorus (P), and Potassium (K). While the question asks for "micro-nutrients", option C lists the standard "primary" nutrients. Given the options, NPK is the only plausible set of primary nutrients listed.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/the-three-primary-soil-micro-nutrients-are\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:09:12+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"The three primary soil micro-nutrients are","description":"The correct option is C. Nitrogen, Phosphorus, and Potassium are the three primary macronutrients required by plants. Plants require various nutrients from the soil for healthy growth. These are broadly classified into macronutrients (needed in larger quantities) and micronutrients (needed in smaller quantities). The three most crucial macronutrients, often called primary nutrients, are Nitrogen (N), Phosphorus (P), and Potassium (K). While the question asks for \"micro-nutrients\", option C lists the standard \"primary\" nutrients. Given the options, NPK is the only plausible set of primary nutrients listed.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/the-three-primary-soil-micro-nutrients-are\/","og_locale":"en_US","og_type":"article","og_title":"The three primary soil micro-nutrients are","og_description":"The correct option is C. Nitrogen, Phosphorus, and Potassium are the three primary macronutrients required by plants. Plants require various nutrients from the soil for healthy growth. These are broadly classified into macronutrients (needed in larger quantities) and micronutrients (needed in smaller quantities). The three most crucial macronutrients, often called primary nutrients, are Nitrogen (N), Phosphorus (P), and Potassium (K). While the question asks for \"micro-nutrients\", option C lists the standard \"primary\" nutrients. 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