Fallow residue management effects on upland rice in three agroecological zones of West Africa

2000 ◽  
Vol 31 (6) ◽  
pp. 501-507 ◽  
Author(s):  
René Akanvou ◽  
M. Becker ◽  
Moussa Chano ◽  
David E. Johnson ◽  
Henri Gbaka-Tcheche ◽  
...  
Keyword(s):  
West Africa ◽  
Upland Rice ◽  
Residue Management ◽  
Agroecological Zones ◽  
Management Effects

Manuring and residue management effects on physical properties of a soil under the rice–wheat system in Punjab, India

2007 ◽  
Vol 94 (1) ◽  
pp. 229-238 ◽  
Author(s):  
Gurpreet Singh ◽  
S.K. Jalota ◽  
Yadvinder Singh
Keyword(s):  
Physical Properties ◽  
Residue Management ◽  
Management Effects

Crop rotation and residue management effects on soil enzyme activities, glomalin and aggregate stability under zero tillage in the Indo-Gangetic Plains

2018 ◽  
Vol 184 ◽  
pp. 291-300 ◽  
Author(s):  
Geeta Singh ◽  
Ranjan Bhattacharyya ◽  
T.K. Das ◽  
A.R. Sharma ◽  
Avijit Ghosh ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Enzyme Activities ◽  
Aggregate Stability ◽  
Soil Enzyme ◽  
Residue Management ◽  
Zero Tillage ◽  
Soil Enzyme Activities ◽  
Gangetic Plains ◽  
Management Effects

Tillage and residue management effects on arylamidase activity in soils

2001 ◽  
Vol 34 (1) ◽  
pp. 21-24 ◽  
Author(s):  
Acosta-Martínez V. ◽  
Tabatabai M.
Keyword(s):  
Residue Management ◽  
Management Effects

Simulation of Nitrogen, Tillage, and Residue Management Effects on Soil Fertility

1983 ◽  
pp. 525-544 ◽  
Author(s):  
M.J. Shaffer ◽  
S.C. Gupta ◽  
D.R. Linden ◽  
J.A.E. Molina ◽  
C.E. Clapp ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Residue Management ◽  
Management Effects

Cultivar and Weeding Effects on Weeds and Rice Yields in a Degraded Upland Environment of the Coastal Savanna

2011 ◽  
Vol 25 (3) ◽  
pp. 322-329 ◽  
Author(s):  
Amadou Touré ◽  
Jonne Rodenburg ◽  
Kazuki Saito ◽  
Sylvester Oikeh ◽  
Koichi Futakuchi ◽  
...  
Keyword(s):  
West Africa ◽  
Rice Yield ◽  
Upland Rice ◽  
Biomass Accumulation ◽  
Rice Cultivars ◽  
Weed Species ◽  
Weed Growth ◽  
Weed Suppressive Ability ◽  
Rice Yields ◽  
Growing Conditions

Weeds are a major constraint to rice production in labor-limited, upland rice-based systems in West Africa. The effects of weeding regimes and rice cultivars on weed growth and rice yield were investigated at two upland locations (Abomey-Calavi and Niaouli) in the degraded coastal savanna zone of Benin in 2005 and 2006 with below-average rainfall. Four weeding regimes (hoe weeding at 21 d after sowing [DAS], delayed hoe weeding at 31 DAS, hoe weeding at 21 and 42 DAS, and a no weeding control) were the main plot treatments. Cultivars comprising three interspecific upland rice cultivars (NERICA 1, NERICA 2, and NERICA 7) and the parents (Oryza sativaWAB56-104 andO. glaberrimaCG14) were tested in subplots. The most dominant weed species identified were Jamaican crabgrass,Mariscus, and silver spinach. Rice yield was generally low because of drought stress; none of the experiments had a higher mean yield than 1,400 kg ha−1across cultivars. Across cultivars, the best weeding regimes in terms of weed control and rice yields were single weeding at 31 DAS (W31) and double weeding at 21 and 42 DAS (W21+42). Under these weeding regimes, WAB56-104 out-yielded the three NERICA cultivars. CG14 showed the strongest weed suppressive ability (WSA) in Abomey-Calavi but did not have strong WSA in Niaouli because of lower biomass accumulation. WSA of WAB56-104 was similar to that of the three NERICA cultivars. Single weeding at 31 DAS, together with the use of cultivars with good adaptation to unfavorable rice growing conditions, would increase land and labor productivity of upland rice-based systems in West Africa.

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