At low matric suctions (high moisture content near saturation, $0$ to $0.33\text{ bar}$ / $0$ to $33\text{ kPa}$), water is held primarily in the large capillary macropores and inter-aggregate voids; therefore, water retention is dominated by soil structure (aggregate size, pore size distribution, and bulk density).
At high matric suctions ($\gt 1\text{ bar}$ to $15\text{ bars}$), water is held as thin adsorption films on particle surfaces, governed predominantly by soil texture and specific surface area. (Correct answer: Option 2)
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
Q.22
Agricultural Meteorology- ICAR JRF/SRF 2024
MCQ (Single Correct)+4−1
Assystem of uniform grains in a soil structure is called as
In soil physics and colloidal science, an idealized porous packing model consisting of uniform particles of identical shape and diameter is designated as a monodisperse system.
Natural agricultural soils containing a wide distribution of particle sizes (sand, silt, and clay) are polydisperse systems. (Correct answer: Option 1)
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
Q.23
Agricultural Meteorology- ICAR JRF/SRF 2024
MCQ (Single Correct)+4−1
What is the coordination number of cubic tetrahedral type packing of soil spherical particles?
Apparent Drought (Pseudo-drought): Occurs when crop water stress and failure are caused not by an abnormal deficit in regional rainfall, but by human management error—specifically the wrong selection of crops or long-duration varieties ill-suited to the normal regional agro-climatic growing period. (Correct answer: Option 1)
Explanation not matching this question?क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?Report
Report Issue / Suggest Correctionत्रुटि रिपोर्ट / संशोधन सुझाव
No official replies published yet for this questionइस प्रश्न पर अभी कोई आधिकारिक समाधान प्रकाशित नहीं है
Have an objection, typo, or doubt? Submit a report in Tab 1. Our subject experts will audit the question and publish the official resolution here.यदि आपको इस प्रश्न या उत्तर कुंजी में कोई आपत्ति है, तो 'त्रुटि रिपोर्ट' टैब से विवरण भेजें। हमारी विषय विशेषज्ञ टीम समीक्षा कर आधिकारिक समाधान प्रकाशित करेगी।