scholarly journals Changes in Weed Communities in Direct-Seeded Paddy Fields Under Astragalus sinicus L. Living Mulch and No-Tillage Cultivation During Three Years.

1997 ◽  
Vol 42 (2) ◽  
pp. 88-96 ◽  
Author(s):  
Takuya Mineta ◽  
Kazumasa Hidaka ◽  
Takashi Enomoto ◽  
Yoko Oki
Keyword(s):  
Paddy Fields ◽  
No Tillage ◽  
Living Mulch ◽  
Astragalus Sinicus ◽  
Weed Communities ◽  
Direct Seeded

scholarly journals The Effect of Different Soil Tillage Systems and Crop Residues on the Composition of Weed Communities

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1276
Author(s):  
Vaida Steponavičienė ◽  
Aušra Marcinkevičienė ◽  
Lina Marija Butkevičienė ◽  
Lina Skinulienė ◽  
Vaclovas Bogužas
Keyword(s):  
Soil Ph ◽  
Crop Residues ◽  
Soil Tillage ◽  
Reduced Tillage ◽  
Plant Residues ◽  
No Tillage ◽  
Agricultural Crops ◽  
Weed Species ◽  
Tillage Systems ◽  
Weed Communities

The composition of weed communities in agricultural crops is dependent on soil properties and the applied agronomic practices. The current study determined the effect of different tillage systems and crop residue on the soil weed community composition. The research programme encompassed 2013–2015 in a long-term field experiment located in the Experimental Station of Vytautas Magnus University in Lithuania. The soil type in the experimental field was qualified as Endocalcaric Stagnosol (Aric, Drainic, Ruptic, Amphisiltic). Weeds were categorised into communities according to soil pH, nitrogen and moisture indicators. The results of investigations were grouped using cluster analysis. Agricultural crops were dominated by different weed species depending on the soil pH and moisture. Weed species were relatively more frequent indicating nitrogen-rich and very nitrogen-rich soils. In the reduced tillage and no-tillage systems, an increase in the abundance of weed species indicating moderate acidity and low acidity, moderately wet and wet, nitrogen-rich and very nitrogen-rich soils was observed. The application of plant residues decreased the weed species abundance. In the reduced tillage and no-tillage systems, the quantitative distribution of weed was often uneven. By evaluating the association of weed communities with groups of different tillage systems with or without plant residues, their control can be optimised.

scholarly journals No-tillage for flooded rice in Brazilian subtropical paddy fields: history, challenges, advances and perspectives

2021 ◽  
Vol 45 ◽  
Author(s):  
Rogério Oliveira de Sousa ◽  
Filipe Selau Carlos ◽  
Leandro Souza da Silva ◽  
Walkyria Bueno Scivittaro ◽  
Pablo Lacerda Ribeiro ◽  
...  
Keyword(s):  
Paddy Fields ◽  
No Tillage ◽  
Flooded Rice

scholarly journals INFLUENCE OF LONG_TERM RICE_DUCK FARMING SYSTEMS ON THE COMPOSITION AND DIVERSITY OF WEED COMMUNITIES IN PADDY FIELDS

2006 ◽  
Vol 30 (1) ◽  
pp. 9-16 ◽  
Author(s):  
WEI Shou-Hui ◽  
◽  
QIANG Sheng ◽  
MA Bo ◽  
WEI Ji-Guang ◽  
...  
Keyword(s):  
Farming Systems ◽  
Paddy Fields ◽  
Weed Communities

Spatial patterns, species richness and cover in weed communities of organic and conventional no-tillage spring wheat systems

Weed Research ◽  
2008 ◽  
Vol 48 (5) ◽  
pp. 398-407 ◽  
Author(s):  
F W POLLNAC ◽  
L J REW ◽  
B D MAXWELL ◽  
F D MENALLED
Keyword(s):  
Species Richness ◽  
Spatial Patterns ◽  
Spring Wheat ◽  
No Tillage ◽  
Weed Communities

Effects of nitrogen management on NH3volatilization and nitrogen use efficiency under no-tillage paddy fields

2013 ◽  
Vol 33 (18) ◽  
pp. 5556-5564 ◽  
Author(s):  
马玉华 MA Yuhua ◽  
刘兵 LIU Bing ◽  
张枝盛 ZHANG Zhisheng ◽  
郑大 ZHENG Da ◽  
周亮 ZHOU Liang ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Nitrogen Management ◽  
Paddy Fields ◽  
No Tillage ◽  
Nitrogen Use ◽  
Use Efficiency

Weed response and crop growth in winter wheat–lucerne intercropping: a comparison of conventional and reduced soil-tillage conditions in northern France

2017 ◽  
Vol 68 (11) ◽  
pp. 1070 ◽  
Author(s):  
E. Barilli ◽  
M.-H. Jeuffroy ◽  
J. Gall ◽  
S. de Tourdonnet ◽  
S. Médiène
Keyword(s):  
Winter Wheat ◽  
Weed Control ◽  
Weed Management ◽  
Conservation Tillage ◽  
Group Analysis ◽  
Soil Tillage ◽  
Integrated Weed Management ◽  
Living Mulch ◽  
Wheat Production ◽  
Weed Communities

Changing agricultural practices from conventional to conservation tillage generally leads to increased weed populations and herbicide use. To gain information about the possible use of lucerne (Medicago sativa L.) cover crop as an alternative and sustainable weed-control strategy for winter wheat (Triticum aestivum L.), an experiment was performed at Thiverval-Grignon, France, from 2008 to 2010. We compared conventional and reduced tillage as well as the presence and absence of living mulch (i.e. lucerne) on weeds and wheat production. Percentage soil coverage and aboveground biomass of wheat, lucerne and weeds were measured at the end of grain filling. Weed communities were analysed in terms of composition and diversity. During both seasons, wheat biomass did not significantly decrease in reduced-till trials compared with conventional ones (7.0 and 7.2 t ha–1, respectively, in 2008–09; 6.9 and 7.1 t ha–1 in 2009–10). Regardless of soil management, the percentage soil coverage by wheat significantly decreased when it was intercropped, although wheat biomass was not significantly reduced compared with the sole crop. To minimise cash-crop losses, we studied the competition between wheat, lucerne and weeds, testing various herbicide strategies. Early control of lucerne allowed better balance between weed control and wheat development. In addition, weed communities varied among treatments in terms of abundance and composition, being reduced but more varied in plots associated with lucerne. A functional group analysis showed that grasses benefited from reduced-till conditions, whereas problematic weeds such as annuals with creeping and climbing morphologies were substantially reduced. In addition, annual and perennial broad-leaf species with rosette morphology were also significantly decreased when lucerne was used as living mulch. Wheat production in reduced-till conditions intercropped with lucerne living mulch may be useful for integrated weed management, reducing the need for herbicides.

scholarly journals Optimum Height at Which to Kill Barley Used as a Living Mulch in Onions

2001 ◽  
Vol 11 (1) ◽  
pp. 151 ◽  
Author(s):  
Richard G Greenland
Keyword(s):  
Hordeum Vulgare ◽  
Soil Erosion ◽  
North Dakota ◽  
Allium Cepa ◽  
Wind Damage ◽  
Propanoic Acid ◽  
Living Mulch ◽  
Optimum Height ◽  
Direct Seeded ◽  
Irrigation Research

Planting barley (Hordeum vulgare L.) as a living mulch with onions (Allium cepa L.) reduces soil erosion and protects the onions from wind damage. It can also reduce yield and size of onion bulbs if not managed correctly. In a 4-year study at the Oakes Irrigation Research Site in North Dakota, barley was planted in the spring at the same time that onions were direct-seeded. Barley rows were planted either parallel with or perpendicular to the onion rows. Barley was killed with fluazifop-P herbicide when ≈13, 18, 23, or 30 cm tall. Onion size and yields were reduced when barley was allowed to grow taller than 18 cm before killing it. Total onion yield was usually greater when barley was planted parallel with, rather than perpendicular to, onion rows. Chemical name used: (R)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acid (fluazifop-P).

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