RSMSSB Agriculture Supervisor flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Bajra

Pearl millet, the leading Kharif cereal of western Rajasthan; needs 400-600 mm rainfall and 25-35°C, grows on light sandy soils, and tolerates drought.

Cropping intensity

Gross cropped area divided by net sown area, expressed as a percentage; it shows how many times the same land is cropped in a year.

Cation exchange capacity

The soil's capacity to hold exchangeable cations such as calcium, magnesium, and potassium; clay and organic matter raise CEC, while sandy soils have low CEC.

Ber

Ziziphus mauritiana, the most important arid fruit of Rajasthan; varieties Gola, Seb, Umran, and Mundia are propagated by budding or grafting on wild rootstock.

Economic threshold level

The pest population density at which control measures are justified to prevent the pest from reaching the economic injury level and causing unacceptable loss.

Rumen

The largest stomach compartment of ruminants, hosting microbes that ferment fibre into volatile fatty acids; its pH is normally between 6.0 and 7.0.

Guru Shikhar

The highest peak of the Aravalli range, located on Mount Abu in Sirohi district, Rajasthan, with an elevation of about 1,722 metres.

Indira Gandhi Canal

A major irrigation canal starting at the Harike barrage in Punjab; it irrigates the Thar districts and supplies drinking water to Jaisalmer.

Photosynthesis equation

Six carbon dioxide molecules plus six water molecules, using light energy and chlorophyll, produce one glucose molecule and six oxygen molecules.

Ten percent law

The rule that only about ten percent of the energy at one trophic level is transferred to the next; the rest is lost as heat and metabolism.

Compound interest

Interest calculated on both the principal and the accumulated interest; the amount is P times (1 plus R divided by 100) raised to T.

RAM

Random access memory, the volatile primary memory of a computer where active programs and data are held; its contents are lost when power is switched off.

Khadin

A traditional runoff farming system of western Rajasthan in which a bund across a slope traps monsoon runoff, and the stored moisture supports Rabi crops.

IW/CPE ratio

The ratio of irrigation water depth to cumulative pan evaporation; irrigation is scheduled when the ratio reaches about 0.8 to 1.0 for most crops.

Gypsum requirement

The amount of gypsum needed to reclaim sodic soil, calculated from the initial and target exchangeable sodium percentage and the soil's cation exchange capacity.

Blossom-end rot

A tomato fruit disorder with a dark sunken patch at the blossom end, caused by calcium deficiency often induced by irregular water supply.

Disease triangle

The concept that disease occurs only when a susceptible host, a virulent pathogen, and a favourable environment coincide; breaking any factor prevents disease.

Rathi cattle

A zebu cattle breed of Bikaner district, Rajasthan, known for high milk fat content and adaptation to arid conditions.

Keoladeo Ghana

A national park and UNESCO World Heritage bird sanctuary at Bharatpur, Rajasthan, famous as a wintering ground for migratory birds.

PM-KISAN

A central scheme giving eligible landholding farmer families Rs 6,000 per year in three instalments of Rs 2,000, with e-KYC and land record linkage.

Rhizobium

A soil bacterium that forms nodules on legume roots and fixes atmospheric nitrogen symbiotically, supplying 40-80 kg nitrogen per hectare.

Biological oxygen demand

The amount of oxygen consumed by microorganisms to decompose organic matter in water; it is an indicator of organic pollution.

Successive percentage change

For changes of plus a percent and minus b percent, the net change equals a minus b minus ab divided by 100.

Blood relation tree

A diagram of family relationships using vertical lines for generations and horizontal lines for siblings and spouses, used to solve reasoning questions.

Moth bean

Vigna aconitifolia, a drought-hardy Kharif pulse traditionally grown in western Rajasthan on low-rainfall sandy soils.

Zero tillage

A conservation practice in which the crop is sown without ploughing, usually with a seed drill, conserving soil moisture and reducing erosion.

Field capacity

The amount of soil water remaining after excess water has drained away by gravity; it is the upper limit of available water for plants.

Umran ber

A late-maturing, high-yielding ber variety with large oval fruits, widely grown in Rajasthan and propagated by budding.

Trichoderma

A beneficial fungus used as a biological control agent against soil-borne plant pathogens, applied to seed, soil, or compost.

Colostrum

The first milk produced after calving, rich in antibodies and nutrients; it must be fed to the newborn calf within the first hours of life.

Chinkara

The Indian gazelle, declared the state animal of Rajasthan; it inhabits arid and semi-arid habitats and is protected under wildlife law.

PMFBY

Pradhan Mantri Fasal Bima Yojana, a crop insurance scheme with farmer premiums of 2 percent for Kharif, 1.5 percent for Rabi, and 5 percent for commercial crops.