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Your search keyword '"Crop- weed competition"' showing total 2 results
Start Over Descriptor "Crop- weed competition"
2 results on '"Crop- weed competition"'

1. Weed suppression capacity of camelina (Camelina sativa) against winter weeds: The example of corn-poppy (Papaver rhoeas)

Author

N. Codina-Pascual, J. Torra, B. Baraibar, and A. Royo-Esnal

Subjects
Winter weeds, Seed production, Crop rotation, Integrated weed management, Crop- weed competition, Conreus de llavors, Agronomy and Crop Science, Creixement, Sowing date, Sistemes de conreu
Abstract

We would like to thank the technicians who helped during sowing and harvest time, mainly Maria Casamitjana and Ezequiel Arque?, and the students that contributed to the maintenance of the experiment and sampling, S`onia Escol`a, Nil Casanovas, and Guiu Montaner. Especial thanks to Dr. Russ W. Gesch, from the USDA-ARS, and to Andreas Gertz, from KWS-KGaA for providing us with the varieties Joelle and Sonny, respectively. We also thank Anibal Capuano, from Camelina Company Spain, for initial seed provision of GP204. The experiment was funded by the Operational Groups project no 56-21-039-2019. Joel Torra ac-knowledges support from the Spanish Ministry of Science, Innovation and Universities (grant Ramon y Cajal RYC2018-023866-I) .

Published
2022

2. PLANT POPULATION AND SRI MANAGEMENT ON CROP-WEED COMPETITION IN RICE IN THE HUMID TROPICS OF KERALA, INDIA.

Author

Sindhu, P. V., Thomas, George C., and Abraham, C. T.

Subjects
*PLANT populations, *WEED competition, *RICE, *GRAIN
Abstract

Studies to assess the influence of plant population and management under the System of Rice Intensification (SRI) on crop-weed competition was conducted in farmer's field at Thrissur district, Kerala, during the second crop seasons (rabi) of 2005-06 and 2006-07. The experiment was laid out in split plot with two mainplot treatments of weeding and unweeding and five subplot treatments of spacing and management. Increase in crop density under closer spacing significantly reduced the number and dry matter production of weeds. Cono weeding was not effective in controlling weeds growing very close to the rice plants. Number and dry matter production of weeds were higher in SRI plots. The uptake of nutrients by weeds was minimum in closer spacing. Weed control efficiency was also maximum for closer plant spacing of 10 cm × 10 cm. The highest grain yields of 8858 kg/ha and 8358 kg/ha during first and second years of study were observed in closer spacing of 10 × 10 cm followed by 20 × 10 cm both under normal package of practices with weeding. The yield obtained from 20 × 10 cm plots with weeding and 10 cm × 10 cm without weeding were on par showing the importance of closer spacing as a weed management strategy. Among the weeded plots, the lowest grain yield of 5250 kg/ha was observed in SRI plots with cono weeding. Uptake of nutrients by the crop was higher in plots with closer spacing with weeding. [ABSTRACT FROM AUTHOR]

Published
2013

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