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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(6): 3154-3159
DOI: https://doi.org/10.20546/ijcmas.2019.806.377


Yield Prediction and Response of Rice-Sorghum Cropping Sequence to Prevailing Weather and Nitrogen Levels
B.V.S. Kiran1, V.R.K. Murthy1, M. Sree Rekha1, K. Ashoka Rani2 and P.R.K. Prasad3
1Department of Agronomy, Agricultural College, Bapatla, ANGRAU, India
2Department of Crop Physiology, Agricultural College, Bapatla, ANGRAU, India
3Department of SSAC, Agricultural College, Bapatla, ANGRAU, India
*Corresponding author
Abstract:

The climate determines selection of right crop and its sequence for a particular location, while the prevailing weather conditions dictate the potentiality of that crop and nitrogen use. On an average every 1oC rise in temperature could lead to a 20 per cent reduction in crop yields. Therefore, the two big challenges viz., finite cultivable land and rise in temperature have to be overcome by agricultural sector to sustain crop yields. In this direction, one of the ways is to use weather and climate as non-monetary input in crop production. Among the crops, rice is a weather sensitive crop. It requires large quantities of water (rainfall) during its growth and development. On the contrary sorghum needs very limited water throughout its life cycle particularly during the vegetative stage in contrast to rice. However, the overall weather that prevails influences the growth and yield of both rice and sorghum. The weather health indices are all weather elements and derived parameters such as GDD, HTU and PTU. Crops are known to modify the weather within their canopies and the soil underneath them. This is further influenced by the cultural and management practices. Nitrogen management is the major practice that affects the yield and quality of both rice and sorghum crops which requires as much as possible at an early and mid tillering stages to maximize panicle numbers and during reproductive stages to produce more number of spikelets per panicle and percentage filled spikelets in rice and during the vegetative and reproductive stages in sorghum. Nitrogen taken up during early growth stages accumulates in the vegetative parts of the plant and is utilized for grain formation. The performance of different genotypes of these crops under varying nitrogen levels are ought to be thoroughly studied under the influence of prevailing weather. Identifying the appropriate rice varieties with proper nitrogen fertilization in response to weather under rice – sorghum sequence were discussed in this review.


Keywords: Weather, Weather health indices, Growth and yield of rice, Yield prediction, Nitrogen
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How to cite this article:

Kiran, B.V.S., V.R.K. Murthy, M. Sree Rekha, K. Ashoka Rani and Prasad, P.R.K. 2019. Yield Prediction and Response of Rice-Sorghum Cropping Sequence to Prevailing Weather and Nitrogen Levels.Int.J.Curr.Microbiol.App.Sci. 8(6): 3154-3159. doi: https://doi.org/10.20546/ijcmas.2019.806.377