Carbon Sink Capacity and Agronomic Productivity of Soils of Semiarid Regions of India - Principles of Sustainable Soil Management in Agroecosystems - page 453

TABLE 16.12
Details of Location, Soil Type, and Production System Included in the
Present Study

Crop/
Cropping
System

Latitude,
Longitude,
and Altitude

Average
Annual
Rainfall (mm)

Location State Soil Type Climate

Anantapur Monocropping

of groundnut

Andhra
Pradesh

14°42′ N,
77°40′ E,
350 m

Alfisols Semiarid 566

Bangalore Finger

millet-finger
millet

Karnataka 12°46′ N,

77°11′ E,
810 m

Alfisols Semiarid 768

Bangalore Groundnut-

finger millet
rotation

Karnataka 12°46′ N,

77°11′ E,
810 m

Alfisols Semiarid 768

Solapur Winter

sorghum

Maharashtra 17°51′ N,

75°32′ E,
480 m

Vertisols Semiarid 723

24°30′ N,
72°13′ E,
152.5 m

SK Nagar Pearl

millet-cluster
bean-castor
rotation
(once in 3
years)

Gujarat Entisols Semiarid 550

Indore Soybean-

safflower
sequence

Madhya
Pradesh

22°51′ N,
75°51′ E,
530 m

Vertisols Semiarid 900

Varanasi Upland

rice-lentil
sequence

Uttar
Pradesh

25°11′ N,
82°51′ E,
480 m

Inceptisols Subhumid 1080

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

over the six cropping seasons in a groundnut-finger millet rotation (Srinivasarao et
al. 2012b). In finger millet monocropping, higher mean yields (Mg ha -1 ) of grains
(3.28 over 27 cropping seasons) were obtained through use of RDF along with 10
Mg FYM ha -1 , followed by 2.92 with 10 Mg FYM ha -1 + 50% NPK (Srinivasarao et
al. 2012c). Even with the application of 10 Mg ha -1 FYM alone, sustained and sig-
nificantly higher grain yield was obtained compared to sole application of chemical
fertilizer or unfertilized control. For the entire 22-year period, higher grain yield was
obtained through the application of 25 kg N from CRs + 25 kg N ( Leucaena ) (1.2 Mg
ha -1 ). It was on par with 25 kg N (FYM) + 25 kg N (urea, 1.06 Mg ha -1 ); 25 kg N
(CR) + 25 kg N (urea, 1.05 Mg ha -1 ); and 50 kg N (urea, 1.04 Mg ha -1 ) and was the
least in control (0.61 Mg ha -1 ) (Srinivasarao et al. 2012d). The higher average seed
yields (Mg ha -1 ) of pearl millet (0.81), cluster bean (0.58), and castor (0.83) over six