Documenting the process of rice production and gap yield associated with crop management in rice production (case study: Mazandaran province, Babol region)

Halalkhor, Seyfollah; Dastan, Salman; Soltani, Afshin; Ajam Norouzi, Hossein

doi:10.22059/jci.2018.237805.1795

Document Type : Research Paper

Authors

¹ Ph.D. Student, Department of Agronomy, Gorgan Branch, Islamic Azad University, Gorgan, Iran.

² Postdoctoral Researcher, Agricultural Biotechnology Research Institute of Iran (ABRII), Karaj, Iran.

³ Professor, Department of Agronomy, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

⁴ Assistant Professor, Department of Agronomy, Gorgan Branch, Islamic Azad University, Gorgan, Iran.

https://doi.org/10.22059/jci.2018.237805.1795

Abstract

Documentation process in agricultural production includes providing all information and activities that show the production route of one crop from providing stage of seed laying to harvest. For this purpose, in this research all finished managing operation from providing stage of seed preparation to harvest for local cultivars of rice was recorded trough fields studies in Mazandaran, Babol in 2015e2016. Result showed that from 155 variables under research, the final model with six independent variables was chosen. In yield model, maximum and average yield were 6489 and 4572 kg ha-1, respectively that estimated is comparable to observed average and maximum yield (4572 and 6489 kg ha-1). All estimated yield gap was equivalent to 1977 kg ha-1. The amount of yield increase result from yield difference of two variables of the best and average pest and weed problems were equals 7.3 per cent of total yield increase (140 and 59 kg ha-1), respectively. The amount of increase yield related to fallow variable equal’s 62 kg ha-1 includes three per cent of total yield increase. The quantity of yield increase related to the effect of Amrollahi cultivar and plant density was 375 and 367 kg ha-1, respectively which equals to 19 per cent of total yield variation. Therefore, on the basis of findings, we can state that the precision of the model was appropriate and can be applied for both the evaluation of the amount of yield gap and determining the portion of each restricting yield variables.

Keywords

20.1001.1.83372008.1397.20.2.7.2

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Journal of Crops Improvement

Documenting the process of rice production and gap yield associated with crop management in rice production (case study: Mazandaran province, Babol region)

References

References

Volume 20, Issue 2
August 2018
Pages 397-414

Documenting the process of rice production and gap yield associated with crop management in rice production (case study: Mazandaran province, Babol region)

References

References

Volume 20, Issue 2August 2018Pages 397-414

Volume 20, Issue 2
August 2018
Pages 397-414