India India

Description of cropping systems, climate, and soils

The land use pattern of India indicates that forests account for an area of about 70 million ha by 2009-10 out of the total geographical area of 328.7 Mha (Table 1).  Total cropped area, net sown area, and cropping intensity (number of harvested crops per year) in India during the same period were192 Mha, 140 Mha and 1.4 respectively. Similarly, net irrigated area of the country was 63.2Mha.Rice, wheat, pearlmillet, sorghum, and maize are the main cereal crops in India and cereals as a whole account for 100 Mha (52%)of total cropped area, whereas pulses and oilseeds account for12.8 Mha(7%) and 27.2 M ha (14%) respectively (Fig. 1). The analysis of existing cropping pattern in India revealed that rice and wheat occupy largest share of total cropland area.Area under rice crop increased from 30.8 Mha in 1950-51 to 44.0 Mha in 2011-12, whereas wheat increased from 9.8Mha to 29.8 Mha during the same time period.

Grain crops contributed about 127 Mha (59%) of the gross cropped area of the country. Rice and wheat occupied 22% and 15% of the total net cultivable area in India. Relative to cropping patterns, rice occupies the largest cultivable area during Kharif (June to October) season whereas wheat occupies largest cultivable area during Rabi (November to March) season. Pearl millet, maize and sorghum occupied about 5%, 4% and 4% of total croplandarea in India respectively during 2009-10. Though the area under maize exhibitedan increase from 3% in 1990-91 to 4% in 2009-10, the area under pearlmillet and sorghum declined significantly during the same period, from 6% to 5% (sorghum) and8% to 4% (pearl millet). 

India has diverse climates, including tropical wet and dry, subtropical humid, semi-arid, arid, tropical wet and alpine climates. India is divided into 15 agro-climatic zones (Fig.2) based on similarity in climate and soils as follows:

  1. Western Himalayan Region
  2. Eastern Himalayan Region
  3. Lower Gangetic Plain Region
  4. Middle Gangetic Plain Region
  5.  Upper Gangetic Plains Region
  6.  Trans Gangetic Plains Region
  7. Eastern Plateau and Hills Region
  8. Central Plateau and Hills Region
  9.  Western Plateau and Hills Region
  10. Southern Plateau and Hills Region
  11. Eastern Coastal Plains and Hills Region
  12. Western Coastal Plains and Ghat Region
  13. Gujarat Plains and Hills Region
  14. Western Dry Region
  15. Islands Region

http://cdn.yourarticlelibrary.com/wp-content/uploads/2014/11/image3.png

Fig.2 : Agro-climatic Regions of India

 

Table. 1: Land utilization pattern of India in 2009-10

S.No.

Nature of land

Area in million ha

 

Area

(%)

 

I.

Geographical Area

328.73

-

II.

Reporting area for land

utilisation statistics

305.61

-

1.

Forests

70.04

22.92

2.

Not available for

cultivation

42.95

14.06

(A)

Area under non-

agricultural uses

26.17

8.56

(B)

Barren and

unculturable land

16.78

5.49

3.

Other uncultivated land

excluding fallow land

26.36

8.62

(A)

Permanent pastures &

other grazing lands

10.15

3.32

(B)

Land under Misc. tree

crops & groves not

included in net area

sown

3.35

1.10

(C)

Culturable waste land

12.86

4.21

4.

Fallow lands

26.24

8.58

(A)

Fallow lands other than

current fallows

10.48

3.43

(B)

Current fallows

15.75

5.15

5.

Net area sown

140.02

45.82

6.

Total cropped area

192.20

  -

7.

Area Sown more than

once

52.18

     -

8.

Cropping intensity

137.26

  -

III.

Net Irrigated area

63.26

-

IV.

Total / Gross Irrigated

Area

86.42

-

 

Rice-wheat is the major cropping system in India and lot of diversity exists in cropping systems in different districts located in various agro-climatic regions of India (Fig.3).

Fig 3: District-wise first predominant cropping systems (Source: ICAR-Indian Institute for Farming Systems Research, Modipuram, India)


The major soil order present in India is Inceptisols (40%) followed by Entisols (28%), Alfisols (14%) and Vertisols (9%) (NBSS&LUP Staff, 2015). Aridisols (4%) and Ultisols (3%) are other minor soil ordersthat exist in the country. Significant features of current Indian agriculture are: (i) Small and scattered land holdings, (ii) about 46% of the total cropped area is under rice and wheat crops (rice in both kharif and rabi seasons and wheat in rabi season), (iii) subsistence agriculture dominates in several agro-climatic zones, (iv) significant area after rice harvest is left fallow in eastern India, (v) the productivity of sorghum and pearl millet is low in rainfed ecosystem, (vi) mustard and groundnut are dominant oil seed crops, (vii) redgram, bengalgram, blackgram and greengram are prominent pulse crops, (viii) food security in India is severely influenced by climate change (Brahmanand et al., 2013) and climate resilient agricultural practices will play vital role in reducing the yield gaps of the crops in the region.

 

Data Sources and Assumptions (following GYGA protocols)

Weather data and reference weather stations

Based on crop harvested area distribution and the agro-climatic zones defined for India, a total of 20 (irrigated wheat), 13 (rainfed wheat), 16 (irrigated rice), 14 (rainfed rice),18(maize), 26 (sorghum) and 30 (pearlmillet) reference weather stations (RWS) were selected following the protocols described by Grassini et al. (2015) and van Bussel et al (2015). The efforts were made to strike a balance between coverage of significant crop harvest area of selected crops and diversity of climatic conditions existed in different reference weather stations in India. The crops like rice and wheat are grown both in rainfed and irrigated conditions whereas maize, pearlmillet, and sorghum are mainly grown in rainfed conditions.

Harvested area and actual yields

District-level data on actual yields for maize, sorghum and pearlmillet were retrieved from the Government of India source i.e. Web based land use statistics information system of India (http://lus.dacnet.nic.in/). A weighted average yield was calculated at the RWS level based on the actual yield (3 years were used from 2007-08 to 2010-11) reported for the districts located within the RWS buffer zone and the relative contribution of each district to the total crop harvested area in the RWS buffer zone.For rice (irrigated and rainfed) and wheat (irrigated and rainfed), actual yields were retrieved from SPAM2005(http://mapspam.info).Maps of harvested area for all crops were retrieved from SPAM2005.

Soil data

The major soil types/soil orders of India present within RWS buffer zones were identified based on the data collected from national research institutions and bureaus under Indian Council of Agricultural Research such as ICAR-National Bureau of Soil Survey and Land Use Planning, Nagpur, Maharashtra, India and ICAR-Central Research Institute for Dryland Agriculture, Hyderabad, Telangana, India (ICAR-NBSSLUP, 2002;http://www.nbsslup.in/ and ICAR-CRIDA, 2015; http://www.crida.in/).  The data on soil texture, rootable soil depth, and slope used in the management sheets and simulations were also collected from these sources.

Crop system and management information for crop simulations

Management practices for each RWS buffer zone were retrieved fromlocal agronomists# and agronomists of the India Coordinated Research Project on Irrigation Water Management and research papers published in peer reviewed journals and annual reports. Information ondominantcrop sequences, major varieties, crop duration, spacing/ plant population and actual and optimum sowing time of rice, wheat, maize, sorghum and pearlmillet were collected for all the reference weather stations.

Simulations of rice and wheat for each region were performed using APSIM. The simulations of sorghum and pearlmillet for each RWS were performed using WOFOST (Boogaard et al., 1998) and maize yield was simulated using Hybrid Maize (Yang et al., 2004). Sowing dates were dynamically simulated for each year based on reported sowing windows for each crop and location, with the exact date of sowing determined from the onset of rainfall as described inWolf et al. (2015).Separate simulations were performed for potential (Yp, for irrigated crops) and water-limited conditions (Yw, for rainfed crops).

#Local agronomists' names and affiliations: Dr. R.B. Singandhupe, Principal Scientist (Agronomy), ICAR-Central Institute of Cotton Research, Nagpur, Maharashtra, India and Dr. K. Kannan, Principal Scientist (Agronomy), Regional centre of ICAR-Indian Institute of Soil and Water Conservation, Ooty, Tamil Nadu, India

References:

Boogaard, H.L., van Diepen, C.A., Roetter, R.P., Cabrera, J.M.C.A. and Laar, H.H.v., 1998. WOFOST 7.1 : user's guide for the WOFOST 7.1 crop growth simulation model and WOFOST Control Center 1.5. Technical document / DLO Winand Staring Centre;52. DLO Winand Staring Centre, Wageningen.

Brahmanand, P.S., Kumar, A., Ghosh, S., Roy Chowdhury, S., Singandhupe, R.B., Singh, R., Nanda, P., Chakraborthy, H.C., Srivastava, S.K. and Behera, M.S. 2013. Challenges to Food Security in India. Current Science, 104 (7), 841-846.

Van Bussel, L.G.J., Grassini, P., Van Mart, J., Wolf, J., Claessens, L., Yang, H., Boogaard, H., De Groot, H., Saito, K., Cassman, K.G. and Van Ittersum, M.K. 2015. From fields to atlas: Upscaling of location specific yield gap estimates. Field Crops Research. 177, 98-108.

Government of India. 2015. Web based land use statistics information system of India. District wise crop production statistics, http://lus.dacnet.nic.in/.

Government of India. 2015. Web based land use statistics information system of India. District wise land use statistics, http://lus.dacnet.nic.in/.

Grassinin, P., Van Bussel, L.G.J.,, P., Van Mart, J., Wolf, J., Claessens, L., Yang, H., Boogaard, H., De Groot, H., Van Ittersum, M.K. and Cassman, K.G. 2015. How good is good enough? Data requirements for reliable crop yield simulations and yield gap analysis. Field Crops Research. 177, 49-63.

ICAR-NBSSLUP, 2002. Soils of India. NBSS&LUP Publication No. 94, ISBN:81-85460-72-8, (11sheets).

ICAR-CRIDA, 2015. Contingency Plans. District plans. http://www.crida.in/

NBSS&LUP Staff., 2015. ICAR-National bureau of Soil Survey and Land Use Planning serving science and society. E-Book, P:62.

J.Wolf, K.Ouattara, I.Supit, 2015. Sowing rules for estimating rainfed yield potential of sorghum and maize in Burkina Faso. Agricultural and Forest Meteorology, 214, 208-218.

Yang, H.S., Dobermann, A., Lindquist, J.L., Walters, D.T., Arkebauer, T.J. and Cassman, K.G. 2004. Hybrid-maize : a maize simulation model that combines two crop modeling approaches. Field Crops Research, 87, 131-154.

L. You, U. Wood-Sichra, S. Fritz, Z. Guo, L. See, J. Koo, Spatial Production Allocation Model (SPAM) 2005 v2.0. (http://mapspam.info) (2014).

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