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General Agriculture Study Table (4)

General Agriculture Study Material

General Agriculture Study Table

General Agriculture Study Point

 1.In-situ green manuring 

It is a system by which green manure crops are grown and incorporated in to the soil of the same field in which it is grown.

Leguminous green manuring crops

CropBotanical name
SunnhempCrotalaria juncea
DainchaSesbania aculeate
SesbaniaSesbania speciosa
Indigo Indigofera tinctoria
Wild IndigoTephrosia purpurea
Cow peaVigna unguiculata / V. sinensis
Green gram/MungPhaseolus aureus / Vigna radiata
Black gram/UrdPhaseolus mungo / Vigna mungo
Horse gram Macrotyloma uniflorum
Cluster bean/GuarCyamopsis tetragonaloba
BerseemTrifolium alexandrium

 2.Ex-situ green manuring/Green leaf manuring 

The practice of collecting green leaves from all the available sources and incorporating them in the soil is called as green leaf manuring.

CropBotanical name
GlyrcidiaGlyrcidia maculata
SubabulLeucaena leucocephala
AgaseSesbania grandiflora
PongamiaPongamia glabra
Eupatorium  Chromolaena odorata
NeemMelia azadiracta
CassiaCassia siamea
IpomeaIpomoea carnea
YekkaCalotropis gigantia

 3.Nutrient content of green manures 

Crop NameNutrient content (%)
NitrogenPhosphorusPotassium
Sunhemp0.890.120.51
Daincha0.680.130.40
Cowpea0.710.150.58
Green gram0.820.180.52
Black gram0.820.180.52
Horse gram0.910.18 0.65
Glyricidia0.680.160.30
Pongamia0.160.140.49

 4.Classification of Climate by Trol (1965) based on number of humid months 

ClimateNumber of humid months 
Arid<2.0 
Semiarid-dry2.0-4.5 
Semiarid-wet4.5-7.0 
Humid >7.0 

 5.Type of Hybridization 

TypesDefinition
Intervarietal Hybridizationbetween different varieties
Interspecific Hybridizationbetween different species
Intergeneric Hybridizationbetween different genera
Genetically Modified Crops (GMC).Another way of improving the crop is by introducing
a gene that would provide the desired characteristic

 6.Soils Rich & Lacks In Nutrient

Types of SoilsRich inLacks in
Alluvial SoilPotash and LimeNitrogen & Phosphorous
Black (Regur soil)Lime, Iron, Magnesia
& Alumina, Potash
Phosphorous, Nitrogen and
organic matter
RedIron and PotashNitrogen, Phosphorous and
humus.
LateriteIron oxide and potashOrganic matter, Nitrogen,
Phosphate & Calcium
Arid and DesertSoluble salts, phosphate Humus, Nitrogen
Saline and AlkalineSodium, Potassium,
Magnesium
Nitrogen and Calcium

 7.Types of Soils, States where Found & Crops grown 

Types of SoilsStatesCrops grown
Alluvial SoilsGujarat, Punjab, Haryana, UP, Bihar, Jharkhand etc.wheat, rice, sugarcane, cotton, jute
Black (Regur soil)Maharashtra, Madhya Pradesh, Gujarat, Andhra Pradesh,Tamil Nadu, Valleys of Krishna and Godavari.Cotton, sugarcane, jowar, tobacco, wheat, rice.
RedEastern and southern part of the deccan plateau, Orissa, Chattisgarh and southern parts of the middle Ganga plain.Wheat, rice, cotton, sugarcane and pulses
LateriteKarnataka, Kerala, Tamilnadu, Madhya Pradesh, Assam and Orissa hills. Cashewnuts, tea, coffee,
rubber
Arid and DesertWestern Rajastan, north Gujarat and southern Punjab Only drought resistant and
salt tolerant crops such as barley, rape, cotton, millets
maize and pulses
Saline and AlkalineWestern Gujarat, deltas of eastern coast, Sunderban areas of West Bengal, Punjab and Haryana– – –

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Updated: 2020-03-22 — 2:15 pm

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