To analyse Area effect, Yield effect and Interaction effect in change in production of major vegetables

Introduction

Chhattisgarh analyze the dynamics of growth and decomposition of major vegetable crops like tomato, brinjal, okra, and potato. This analysis helps understand growth trends and the factors contributing to production increases.

Material and methods

Selection of area

Chhattisgarh state of India was considered purposely for study purpose and all the 3 agroclimatic zones viz Chhattisgarh plain, Bastar plateau and northern hills were considered for detail investigation. Out of the three agro-climatic zones, the Chhattisgarh plain zone was selected only because the major vegetable area and production to be covered more than 60 percent of the Chhattisgarh state.

Selection of Crop

The major vegetable crops viz potato, okra, brinjal, onion and tomato were selected for the study as area covered in these vegetable was found to be more than 60 percent in Chhattisgarh plain zone of Chhattisgarh state as compared to other vegetable in the Chhattisgarh plain zone of state.

Nature and sources of data

This study is based on secondary data which is obtained from the website of Government of Chhattisgarh Agriculture Development and Farmer Welfare and Bio -Technology Department (agriportal.cg.nic.in).

Period of Study

The data was collected for the period of 17 Years from 2004-05 to 2020-21.

Analytical tool

For estimation of contribution of area and yield towards change in production (positive/negative) the following model (Sharma 1977) [3] was used.

Percentage share of average yield in total production

Result and Discussion

The decomposition analysis was carried out to find out the contribution of area and yield towards increase/decrease in major vegetable crops production during the period under study 2004-05 to 2020-21.

Brinjal

In Chhattisgarh plains zone and Chhattisgarh state area (51.69 and 79.73%), yield (44.57 and 16.51%) and interaction (3.74 and 3.76%) effect shown positive change in production of brinjal which was found to be 330.85 (202.53%), 475.13 (210.89%) thousand metric tonnes, respectively. Which show that production of brinjal in Chhattisgarh plain and Chhattisgarh state is increasing because area under the crop is increasing mean area effect is more prominent as compare to yield and Interaction Effect.

Tomato

In Chhattisgarh plains zone and Chhattisgarh state area (49.24, 66.12%), yield (41.08, 25.43%) and interaction (9.68, 8.45%) effect shown positive change in production of tomato which was found to be 627.86 (275.57%), 833.21 (263.31%) thousand metric tonnes, respectively. Which show that production of brinjal in Chhattisgarh plain and Chhattisgarh state is increasing because area under the crop is increasing mean area effect is more prominent as compare to yield and Interaction Effect.

Potato

In Chhattisgarh plains zone area (33.66%) and interaction (3.99%) effect shown negative, yield (137.65%) effect shown positive change in production of potato which was found to be 235.62 (202.94%) thousand metric tonnes, respectively. In Chhattisgarh state area (122.47%) effect shown positive, yield (20.89%) and interaction (1.58%) effect shown negative, the change in production of potato which was found to be 363.72 (135.72%) thousand metric tonnes, respectively.

Okra

In Chhattisgarh plains zone and Chhattisgarh state area (7.37, 84.29%), yield (92.31, 84.29%) and interaction (0.33, 3.94%) effect shown positive change in production of okra which was found to be 121.05 (125.35%), 186.17(122.92%) thousand metric tonnes, respectively. Which show that production of brinjal in Chhattisgarh plain and Chhattisgarh state is increasing because area under the crop is increasing mean area effect is more prominent as compare to yield and Interaction Effect.

Onion

In Chhattisgarh plains zone and Chhattisgarh state area (47.76, 84.85%), yield (44.21, 10.27%) and interaction (8.08, 4.88%) effect shown positive change in production of onion which was found to be 213.49 (473.31%), 334.07(404.88%) thousand metric tonnes, respectively. Which show that production of brinjal in Chhattisgarh plain and Chhattisgarh state is increasing because area under the crop is increasing mean area effect is more prominent as compare to yield and Interaction Effect.

Other vegetable crop

In Chhattisgarh plains zone and Chhattisgarh state area (61.90, 69.19%), yield (15.25, 11.36%) and interaction (22.85, 19.45%) effect shown positive change in production of other vegetable crop which was found to be 1900.62 (247.62%), 2773.20 (287.84%) thousand metric tonnes, respectively. Which show that production of brinjal in Chhattisgarh plain and Chhattisgarh state is increasing because area under the crop is increasing mean area effect is more prominent as compare to yield and Interaction Effect.

Total vegetable crop

In Chhattisgarh plains zone and Chhattisgarh state area (57.46, 84.36%), yield (34.64, 11.73%) and interaction (7.9, 3.91%) effect shown positive change in production of total vegetable crop which was found to be 3429.50 (242.11%), 4965.50(247.41%) thousand metric tonnes, respectively. Which show that production of brinjal in Chhattisgarh plain and Chhattisgarh state is increasing because area under the crop is increasing mean area effect is more prominent as compare to yield and Interaction Effect.

Interaction effect

It Chhattisgarh plain and Chhattisgarh state was found to be positive and maximum brinjal (3.74%), tomato (9.68%), okra (0.33%), onion (8.08%), other vegetable (22.85%) and total vegetable (7.90%), respectively. It Chhattisgarh state was found to be positive and maximum brinjal (3.76%), tomato (8.45%), okra (3.94%), onion (4.88%), other vegetable (19.45%) and total vegetable (3.91%), respectively. The potato was found negative interaction effect of 3.99 and 1.58 percent in Chhattisgarh plain and Chhattisgarh state.

Conclusion

The total increase in area, production and productivity was mainly brought by the expansion in area and production enhancement which ultimately become possible due to the increase in productivity as compared to the contribution of acreage leads to conclude that the brinjal, tomato, onion and potato producer are adopting the production technologies to some extent in production of these crops.

References

1. Chavhan SB, Patil KJ, Jangale AS. Decomposition analysis of cereals production in Nagpur division. 2020.
2. Verma OP, Maurya OP, Kumar H. Growth and decomposition analysis of potato production in India. The Pharma Innovation Journal. 2021;SP-10(8):502-504.
3. Sharma JL, Kennedy RE. A comparative analysis of stock price behavior on the Bombay, London, and New York stock exchanges. Journal of Financial and Quantitative Analysis. 1977 Sep;12(3):391-413.
4. Dong J, Gruda N, Li X, Tang Y, Zhang P, Duan Z. Sustainable vegetable production under changing climate: The impact of elevated CO2 on yield of vegetables and the interactions with environments-A review. Journal of Cleaner Production. 2020 Apr 20;253:119920.