Flea Beetle (Coleoptera: Chrysomelidae) Populations and Crop Yield in Field Pea and Oilseed Rape Intercrops

1994 ◽  
Vol 23 (3) ◽  
pp. 654-658 ◽  
Author(s):  
Michael J. Weiss ◽  
Blaine G. Schatz ◽  
John C. Gardner ◽  
Barbara A. Nead
Keyword(s):  
Crop Yield ◽  
Oilseed Rape ◽  
Flea Beetle ◽  
Field Pea

scholarly journals Effects of nitrogen and phosphorus fertilizer on crop yields in a field pea-spring wheat-potato rotation system with calcareous soil in semi-arid environments

2016 ◽  
Vol 14 (2) ◽  
pp. e1101 ◽  
Author(s):  
Chang-An Liu ◽  
Sen Zhang ◽  
Shuai Hua ◽  
Xin Rao
Keyword(s):  
Crop Yield ◽  
Spring Wheat ◽  
Calcareous Soil ◽  
Crop Yields ◽  
Potato Crop ◽  
Field Pea ◽  
Arid Environments ◽  
Annual Average ◽  
N Treatment ◽  
Semi Arid

The object of the present study was to investigate the yield-affecting mechanisms influenced by N and P applications in rainfed areas with calcareous soil. The experimental treatments were as follows: NF (no fertilizer), N (nitrogen), P (phosphorus), and NP (nitrogen plus phosphorus) in a field pea-spring wheat-potato cropping system. This study was conducted over six years (2003-2008) on China’s semi-arid Loess Plateau. The fertilizer treatments were found to decrease the soil water content more than the NF treatment in each of the growing seasons. The annual average yields of the field pea crops during the entire experimental period were 635, 677, 858, and 1117 kg/ha for the NF, N, P, and NP treatments, respectively. The annual average yields were 673, 547, 966, and 1056 kg/ha for the spring wheat crops for the NF, N, P, and NP treatments, respectively. Also, the annual average yields were 1476, 2120, 1480, and 2424 kg/ha for the potato crops for the NF, N, P, and NP treatments, respectively. In the second cycle of the three-year rotation, the pea and spring wheat yields in the P treatment were 1.2 and 2.8 times higher than that in the N treatment, respectively. Meanwhile, the potato crop yield in the N treatment was 3.1 times higher than that in the P treatment. In conclusion, the P fertilizer was found to increase the yields of the field pea and wheat crops, and the N fertilizer increased the potato crop yield in rainfed areas with calcareous soil.

Yield of spring wheat and field pea seeded into standing and cultivated canola stubble on the semiarid Canadian prairie

2013 ◽  
Vol 93 (2) ◽  
pp. 287-289
Author(s):  
Herb Cutforth
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Crop Yield ◽  
Spring Wheat ◽  
Crop Yields ◽  
Field Pea ◽  
Canadian Prairie ◽  
Use Efficiency

Cutforth, H. 2013. Yield of spring wheat and field pea seeded into standing and cultivated canola stubble on the semiarid Canadian prairie. Can. J. Plant Sci. 93: 287–289. Previous research in the semiarid prairie showed that crop yields increased as the height of standing cereal stubble increased to ≥45 cm. A 3-yr (2008–2010) study was conducted at Swift Current, SK, to determine how seeding field pea and spring wheat into cultivated and tall (≥45 cm high) canola stubble affected crop yield. Similar to cereal stubble, crop yield and water use efficiency were significantly greater for crops grown in the tall standing canola stubble compared to the cultivated stubble. Water use by each crop was independent of stubble management.

scholarly journals Evaluating the Competitive Ability of Semileafless Field Pea Cultivars

Weed Science ◽  
2016 ◽  
Vol 64 (1) ◽  
pp. 137-145 ◽  
Author(s):  
Cory E. Jacob ◽  
Eric N. Johnson ◽  
Miles F. Dyck ◽  
Christian J. Willenborg
Keyword(s):  
Pisum Sativum ◽  
Crop Yield ◽  
Weed Management ◽  
Competitive Ability ◽  
Field Experiments ◽  
Field Pea ◽  
Crop Rotations ◽  
Integrated Weed Management ◽  
Western Canada ◽  
Cultivar Selection

The inclusion of competitive crop cultivars in crop rotations is an important integrated weed management (IWM) tool. However, competitiveness is often not considered a priority for breeding or cultivar selection by growers. Field pea (Pisum sativumL.) is often considered a poor competitor with weeds, but it is not known whether competitiveness varies among semileafless cultivars. The objectives of this study were to determine if semileafless field pea cultivars vary in their ability to compete and/or withstand competition, as well as to identify aboveground trait(s) that may be associated with increased competitive ability. Field experiments were conducted in 2012 and 2013 at three locations in western Canada. Fourteen semileafless field pea cultivars were included in the study representing four different market classes. Cultivars were grown either in the presence or absence of model weeds (wheat and canola), and competitive ability of the cultivars was determined based on their ability to withstand competition (AWC) and their ability to compete (AC). Crop yield, weed biomass and weed fecundity varied among sites but not years. Cultivars exhibited inconsistent differences in competitive ability, although cv. Reward consistently exhibited the lowest AC and AWC. None of the traits measured in this study correlated highly with competitive ability. However, the highest-yielding cultivars generally were those that had the highest AC, whereas cultivars that ranked highest for AWC were associated with lower weed fecundity. Ranking the competitive ability of field pea cultivars could be an important IWM tool for growers and agronomists.

Sign in / Sign up

Export Citation Format

Share Document