Effect of Different Land Preparation Methods for Sawah System Development on Soil Productivity Improvement and Rice Grain Yield in Inland Valleys of Southeastern Nigeria

Nwite, J. N.; Essien, B. A.; Keke, C. I.; Igwe, C. A.; Wakatsuki, Toshiyuki

doi:10.9734/air/2016/20792

Cited by 2 publications

(3 citation statements)

References 33 publications

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“…In a similar study, Nwite et al (2016a) reported that sawah tillage environments significantly increased rice soil treatments = 0.172; p < 0.001 LSD (0.05) soil treatment rates = 1.082; p < 0.001 LSD (0.05) interaction of treatments × rates = NS; p = 0.414 grain yield than the farmers' growing environment in a 3-year study.…”

Section: Rice Grain Yield (T Ha −1 ) As Affected By Organic Treatmentmentioning

confidence: 77%

“…The TN in the amended plots was higher than the initial TN (Table 1). This is due to organic amendment applied and due to the sawah system mechanisms that encourage replenishment of nutrients for rice growth, as well as enhance microbial population help in nitrogen fixation (Nwite et al 2016a). In 2015 cropping season, increase in treatment application rates beyond 10 t ha −1 significantly reduced the TN by 22% and 63%, for RHA and RHD, respectively.…”

Section: Total Nitrogen (Tn)mentioning

confidence: 99%

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Improving soil silicon and selected fertility status for rice production through rice-mill waste application in lowland sawah rice field of southeastern Nigeria

Nwite

Unagwu

Okolo

et al. 2019

Int J Recycl Org Waste Agricult

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Purpose Rice-mill wastes are generated in large amounts in Ishiagu, Ebonyi State, Nigeria. These wastes can potentially be utilized for rice production and in improving soil attributes. This study evaluated the effects of rice-mill wastes on soil chemical properties and rice yield in sawah rice management. Methods A sawah rice field in an inland valley of southeastern Nigeria was used in 2014 and 2015 cropping seasons for the study. Sawah refers to an Indo-Malaysian term for rice paddy. It involves the manipulation of some soil physical properties in form of ecological engineering works, by bunding, puddling and leveling of lowland rice field for water control and management. Two rice-mill wastes [rice husk ash (RHA) and rice husk dust (RHD) applied at 0, 2.5, 5, 7.5, 10 and 12.5 t ha −1 ] and the control were built into a split-plot in a randomized complete block design with three replications. Results Bio-waste application had significant (p < 0.05) improved effects on the soil organic carbon, available P, soil available Si and total N compared with the unamended (control) treatment. There was significant (p < 0.05) increase in rice grain yield from 5.05 to 5.80 t ha −1 (for RHA) and 6.17-6.96 t/ha (for RHD) compared with 2.35-2.8 t ha −1 (control treatment) in both cropping seasons. Conclusion RHD and RHA treatments had significantly higher rice grain yield compared with the control treatment. Overall, rice grain yield was higher under RHD treatment compared with RHA treatment. This result demonstrated that RHA and RHD are potential agricultural resource for rice production in the study area.

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Section: Rice Grain Yield (T Ha −1 ) As Affected By Organic Treatmentmentioning

confidence: 77%

Section: Total Nitrogen (Tn)mentioning

confidence: 99%

Improving soil silicon and selected fertility status for rice production through rice-mill waste application in lowland sawah rice field of southeastern Nigeria

Nwite

Unagwu

Okolo

et al. 2019

Int J Recycl Org Waste Agricult

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“…The reduced conditions so developed also enhance the nutrient availability (Anjum et al 2019;Kalita et al 2020). According to (Nwite et al 2016), all of the sawah (an Indo-Malaysian word for padi refers to a levelled rice field surrounded by bunds with inlets and outlets for irrigation and drainage water management system) adopted tillage environments (Bunding-with or without puddling-levelling/ little levelling) positively improved both the soil parameters (pH, OC, Total Nitrogen and all the exchangeable bases within the study periods) and rice grain yield.…”

Section: Introductionmentioning

confidence: 99%

Effect of tillage and land levelling practices on productivity of transplanted rice: A case study in canal command area of north western plateau agro-climatic zone

Senapati,

Gulati,

Sahu

et al. 2023

agroped

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An on-farm study on the response of transplanted rice to land preparation methods was undertaken on a sandy clay loam soil in Pitamahal irrigation command of Sundargarh district (Odisha) for two consecutive dry seasons of 2019-20 and 2020-21. The treatments included normal ploughing with desi plough followed by levelling of 0.5 – 1 % slope (T1), deep ploughing (20 - 25 cm) with bullock drawn M.B. plough followed by levelling of 0 - 0.25 % slope (T2), and farmers' practice of ploughing with desi plough and levelling varying 1-3 % slope (T3) for puddling operation. Deep ploughing (T2) resulted in higher root length (23.88 cm) and root 3 volume (81.75 cm ), owing to the initial rapid growth of roots promoted by deep ploughing that cracked the hardpan. This also increased the movement of water both laterally and vertically (7.44 mm per day) compared to T1 and T3's 5.11 and 5.71 m per day, respectively. The treatment also resulted in a significantly greater grain yield -1 (45.90 q ha ) due to a much larger effective tiller m-2 (423.40) and number of grains per panicle (71.80), as well as a higher net return per rupee spent (7.54) and benefitcost ratio (2.01).

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Effect of Different Land Preparation Methods for Sawah System Development on Soil Productivity Improvement and Rice Grain Yield in Inland Valleys of Southeastern Nigeria

Cited by 2 publications

References 33 publications

Improving soil silicon and selected fertility status for rice production through rice-mill waste application in lowland sawah rice field of southeastern Nigeria

Improving soil silicon and selected fertility status for rice production through rice-mill waste application in lowland sawah rice field of southeastern Nigeria

Effect of tillage and land levelling practices on productivity of transplanted rice: A case study in canal command area of north western plateau agro-climatic zone

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