Next Article in Journal
Toward an Investigation of Diversity and Cultivation of Rye (Secale cereale ssp. cereale L.) in Germany: Methodological Insights and First Results from Early Modern Plant Material
Next Article in Special Issue
Effects of Two Varieties and Fertilization Regimes on Growth, Fruit, and Silymarin Yield of Milk Thistle Crop
Previous Article in Journal
Influence of Substrate Composition and Container Size on the Growth of Tissue Culture Propagated Apple Rootstock Plants
Previous Article in Special Issue
Long-Term Integrated Nutrient Management in the Maize–Wheat Cropping System in Alluvial Soils of North-Western India: Influence on Soil Organic Carbon, Microbial Activity and Nutrient Status
Article

Weed-Free Durations and Fertilization Regimes Boost Nutrient Uptake and Paddy Yield of Direct-Seeded Fine Rice (Oryza sativa L.)

1
Department of Agronomy, Faculty of Agriculture, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
2
Department of Agronomy, Faculty of Agriculture, University of Poonch Rawalakot, Rawalakot 12350, Pakistan
3
Department of Chemistry, Turabah University College, Turabah Branch, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
4
Department of Plant Pathology, Faculty of Agriculture, University of Poonch Rawalakot, Rawalakot 12350, Pakistan
5
Department of Horticulture, Faculty of Agriculture, University of Poonch Rawalakot, Rawalakot 12350, Pakistan
6
Rice Research and Training Center, Field Crops Research Institute, Agricultural Research Center, Sakha 33717, Egypt
7
Department of Plant Sciences, University of California Davis, Davis CA 95616, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Umberto Anastasi and Aurelio Scavo
Agronomy 2021, 11(12), 2448; https://doi.org/10.3390/agronomy11122448
Received: 11 November 2021 / Revised: 24 November 2021 / Accepted: 29 November 2021 / Published: 30 November 2021
(This article belongs to the Special Issue Cropping Systems and Agronomic Management Practices of Field Crops)
Under the changing climate, fertilization regimes and weed infestation management in aromatic direct-seeded fine rice (DSR) remain vital for curbing environmental hazards and ensuring food security. A multi-year field study was undertaken to appraise the influence of fertilization techniques and weed-free periods on weed dynamics, nutrient uptake and paddy yield in a semi-arid environment. Treatments included two fertilization methods (broadcasting and side placement) and five weed-free durations (20, 30, 40, 50 post-seeding days, DAS) along with a weed-free crop for a whole season. Weed competition for a season-long crop (weedy check) was maintained for each fertilizer application method. Our results revealed that the side placement of fertilizers resulted in a significantly lower weed density and biomass, even under season-long weed competition. The highest paddy yield was recorded for a crop without weeds, while weed-free duration of up to 50 DAS followed it. The uptake of nitrogen (N), phosphorus (P) and potassium (K) for a weed-free duration of up to 50 DAS were only 19%, 9% and 8%, respectively, as compared to the weedy check. The uptake of N, P and K by weeds in the broadcast method was 18%, 30% and 24% higher, compared to side-placed fertilizers. The period of 20–50 DAS remained critical in DSR as far as weed control was concerned. Thus, the side placement of fertilizers and controlling weeds for up to 50 days after rice sowing can be recommended for general adoption in semi-arid agro-ecological conditions. View Full-Text
Keywords: broadcasted fertilization; side-dressing; paddy growth; weeds competition; macro-nutrients broadcasted fertilization; side-dressing; paddy growth; weeds competition; macro-nutrients
Show Figures

Figure 1

MDPI and ACS Style

Abbas, R.N.; Iqbal, A.; Iqbal, M.A.; Ali, O.M.; Ahmed, R.; Ijaz, R.; Hadifa, A.; Bethune, B.J. Weed-Free Durations and Fertilization Regimes Boost Nutrient Uptake and Paddy Yield of Direct-Seeded Fine Rice (Oryza sativa L.). Agronomy 2021, 11, 2448. https://doi.org/10.3390/agronomy11122448

AMA Style

Abbas RN, Iqbal A, Iqbal MA, Ali OM, Ahmed R, Ijaz R, Hadifa A, Bethune BJ. Weed-Free Durations and Fertilization Regimes Boost Nutrient Uptake and Paddy Yield of Direct-Seeded Fine Rice (Oryza sativa L.). Agronomy. 2021; 11(12):2448. https://doi.org/10.3390/agronomy11122448

Chicago/Turabian Style

Abbas, Rana N., Asif Iqbal, Muhammad A. Iqbal, Omar M. Ali, Raees Ahmed, Raina Ijaz, Adel Hadifa, and Brandon J. Bethune. 2021. "Weed-Free Durations and Fertilization Regimes Boost Nutrient Uptake and Paddy Yield of Direct-Seeded Fine Rice (Oryza sativa L.)" Agronomy 11, no. 12: 2448. https://doi.org/10.3390/agronomy11122448

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop