Evaluation of Yield and Yield Components of Rice CV. ‘Hashemi’ in Traditional and Mechanized Cultivations under on-Farm Research

Subject Areas : Journal of Crop Ecophysiology

Mehdi Chegini ¹ , Hemmatollah Pirdashti ^{2 *} , Mohammad Esmaeili ³ , Nematollah Sedaghat ⁴ , Zahra Saber ⁵

1 - Ph.D. Student in Crop Physiology, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
2 - Professor, Department of Agronomy, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
3 - Associate Professor, Department of Agronomy, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
4 - Ph.D. in Crop Physiology, Agricultural Jihad Management in Amol, Amol, Iran.
5 - Ph.D. in Agronomy, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.

Received: 2022-09-26 Accepted : 2023-08-06 Published : 2024-12-21

Keywords: Rice, Cultivation method, Fertilizer consumption, Soil test, Paddy yield,

Abstract :

The study was aimed to achieve optimal yield, optimal use of plant production capacity and comparison of cultivation methods and fertilizer consumption based on soil test on yield and yield components of rice. A factorial experiment was carried out in three replications with two factors of cultivation methods at two levels (traditional and mechanized) and fertilizer application type (with and without soil test) on Hashemi variety rice in 2021 in Chaousar village of Amol city, Mazandaran province, Iran. The results showed that the effect of cultivation type was significant on biological yield, plant tiller, and number of unfilled seeds per panicle at 1% probability level as well as on the paddy yield, total number of grains per panicle, and the number of filled grains per panicle at the 5% level. Mechanized cultivation had more paddy and biological yields by 4957.2 and 12637.7 kg.ha-1, respectively (about 19 and 20% respectively) compared to the traditional cultivation with an average of 4178.7 and 10514.8 kg.ha-1. Mechanized rice cultivation had 14.6% more number of tillers and 21.6% more filled grain in the panicle than traditional cultivation. Also, fertilizer consumption based on the soil test markedly increased the total number of seeds per panicle by 14.6% compared to the plots without soil test. Also, fertilizer application with soil test resulted in about 13.3, 3.4, and 15% more paddy yield, plant height, and biological yield, respectively, compared to fertilizer application without soil test. According to the results, the mechanized rice cultivation along with soil testing can be used to increase the yield under similar conditions of this research.

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