Match List-I with List-II: | List-I (Soil Temperature Regime) |... | Agrigyan

The Strategic Research and Extension Plan (SREP) is the cornerstone diagnostic operational document of the Agriculture Technology Management Agency (ATMA) at the district level.
Developed through Participatory Rural Appraisal (PRA), SREP identifies local farming systems, agro-ecological situations, farmer priorities, research gaps, and extension needs to guide all district agricultural interventions.

In USDA Soil Taxonomy, Plinthite (from Greek 'plinthos', brick) is an iron-rich, humus-poor mixture of clay, quartz, and other minerals:

• It is rich in sesquioxides (iron and aluminum oxides $Fe_2O_3$ and $Al_2O_3$) (B is correct).
• It exhibits red mottles in a prominent yellowish, greyish, or white platy matrix (C is correct).
• It is low in organic matter and humus (A is false).
• Crucially, upon exposure to air and repeated wetting and drying, plinthite hardens IRREVERSIBLY into ironstone or petroplinthite (laterite rock); it does NOT harden reversibly (D is false).

Standard cartographic color symbols designated for Land Capability Classification (LCC) arable land groups:

• Class II $\rightarrow$ Yellow (II) (soils with moderate limitations that reduce the choice of plants).
• Class IV $\rightarrow$ Pink (IV) / Blue in some mapping systems (severe limitations restricting choice to occasional cultivation or pasture).
• Class III $\rightarrow$ Brown / Red (III) (soils with severe limitations requiring special conservation practices).
• Class I $\rightarrow$ Green (I) (excellent arable land with few or no limitations for crop production).