Carbon Sink Capacity and Agronomic Productivity of Soils of Semiarid Regions of India - Principles of Sustainable Soil Management in Agroecosystems - page 451

SK Nagar
(Gujarat)

Pearl millet Entisols Arid 550 1988-2006

(18 years)

Control 100%

RDN

50% RDN
(FYM)

50% RDN
(fertilizer)
+ 50%
RDN
(FYM)

Farmers'
method (5 t of
FYM ha -1 once
in 3 years)

Pearl millet 0.75 1.41 1.01 1.49 1.05

Cluster
bean

0.56 0.81 0.86 1.04 0.76

Castor 0.80 1.45 1.15 1.50 1.03

Indore
(Madhya
Pradesh)

Soybean Vertisols Semiarid 900 1992-2007

(15 years)

Control 40 kg N +

26 kg P

FYM 6 t
ha -1 +
N 20 P 13

Soybean
residue 5 t
ha -1 +
N 20 P 13

CRs of
soybean at 5 t
ha -1

Soybean 1.40 2.10 2.33 1.99 1.81

Safflower 0.72 1.34 1.72 1.39 1.17

Varanasi (Uttar
Pradesh)

Rice Inceptisols Subhumid 1080 1986-2007

(21 years)

Control 100%

RDF

100%
organic
(FYM)

50%
organic
(FYM) +
50% RDF

Farmers'
practice

Rice 1.04 1.73 1.40 1.77 1.29

Lentil 0.46 0.69 0.65 0.91 0.47

Source: Srinivasarao, Ch. et al., Carbon sequestration strategies under rainfed production systems of India, Central Research Institute for Dryland Agriculture, Hyderabad
(ICAR), India, 2009.