Effect of tillage practices on irrigation requirement, weed control and yield of lowland rice

1983 ◽  
Vol 3 (2) ◽  
pp. 147-158 ◽  
Author(s):  
S.Rami Reddy ◽  
S.B. Hukkeri
Keyword(s):  
Weed Control ◽  
Lowland Rice ◽  
Irrigation Requirement ◽  
Tillage Practices

scholarly journals Historical notes on the zero-tillage concept.

1970 ◽  
Vol 18 (4) ◽  
pp. 219-224
Author(s):  
H. Kuipers
Keyword(s):  
Weed Control ◽  
Soil Structure ◽  
Zero Tillage ◽  
Tillage Practice ◽  
Tillage Practices

In a brief review, earlier German and English attitudes to tillage research are contrasted, especially on the emphasis on soil structure v emphasis on weed control; the effect of the advent of zero tillage on this difference is discussed. It was concluded that chemical weed control gives greater freedom in tillage practice, and research is revealing risks that may be unacceptable for certain crops when tillage practices are changed. CCT. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals Effect of Difference Weed Control Methods to Yield of Lowland Rice in the SOBARI

2015 ◽  
Vol 3 ◽  
pp. 323-329 ◽  
Author(s):  
Merry Antralina ◽  
Ida Nur Istina ◽  
YuyunYuwariah ◽  
Tualar Simarmata
Keyword(s):  
Weed Control ◽  
Lowland Rice ◽  
Control Methods

scholarly journals Tillage Practices in the Context of Climate Change and a Sustainable Viticulture

2015 ◽  
Vol 7 (4) ◽  
pp. 500-504
Author(s):  
Alina DOBREI ◽  
Eleonora NISTOR ◽  
Florin SALA ◽  
Alin DOBREI
Keyword(s):  
Weed Control ◽  
Sugar Content ◽  
Bare Soil ◽  
Soil Tillage ◽  
High Fertility ◽  
Biological Processes ◽  
Tillage Practices ◽  
Yield Quality ◽  
Soil Fertility Improvement ◽  
Suitable System

The aim of this study was to identify the most appropriate options for maintenance of soil in vineyards located on flat land or mild slopes, and soils with a medium or high fertility. Tillage in the vineyard is carried out to preserve the soil loosening, for maintaining the humus and nutrients in soil, for activation of chemical and biological processes and last but not the least to maintain weed control. Choosing the most suitable system of vineyards floor management (middle rows, undervine, around vineyard) is a major problem which depends on preserving or enhancing soil fertility, improvement or worsening the soil physical, chemical and biological characteristics, ensuring water from soil and weed control. The experimental variants consisted of different practices of soil tillage, as follows: V1-bare row middles and grass strips/bare soil under vine; V2-bare soil/herbicides treatment under vine; V3-bare row middles/bare soil under vine; V4-bare row middles with ripped soil/bare soil under vine; V5- raw middles and grass strips/manual hoeing under vine; V6-bare row middles/rotary hoe under vine; V7-raw middles and grass strips/herbicides treatment under vine. Observations were made on ‘Burgund’ cultivar regarding buds viability, grape production, yield quality and sugar content. The highest yield per hectare was achieved in the soil with bare raw middles prepared with rotary hoe under vine (V6). On soils with moisture deficiency and a high content of clay, vineyards floor management is recommended to be maintained both under vine and on raw middles, as well with the adjustable rotary tiller.

Weed Control by Subterranean Clover (Trifolium subterraneum) Used as a Living Mulch

1990 ◽  
Vol 4 (3) ◽  
pp. 534-538 ◽  
Author(s):  
Adrian J. Enache ◽  
Richard D. Ilnicki
Keyword(s):  
Weed Control ◽  
Subterranean Clover ◽  
Trifolium Subterraneum ◽  
Conventional Tillage ◽  
Corn Silage ◽  
No Tillage ◽  
Living Mulch ◽  
Weed Biomass ◽  
Tillage Practices ◽  
Field Corn

Subterranean clover as a living mulch was evaluated for weed control and its effect on field corn silage and grain yield in 1986 to 1988. Treatments included combinations of subterranean clover living mulch, rye dead mulch, and no mulch with three superimposed tillage practices (conventional, minimum, and no-tillage). Results indicated that subterranean clover living mulch effectively controlled ivyleaf morningglory. Little control of fall panicum was obtained in 1986; however, living mulch combinations effectively controlled fall panicum in 1987 and 1988. Weed biomass was reduced significantly by all living mulch combinations, but all other combinations resulted in higher weed biomass than living mulch. Corn silage and grain yields from the no-tillage plus living mulch treatment were comparable to or higher than those obtained with the conventional tillage plus no mulch treatment.

Horseweed (Conyza canadensis) management in Oklahoma winter wheat

2019 ◽  
Vol 34 (2) ◽  
pp. 229-234 ◽  
Author(s):  
Jodie A. Crose ◽  
Misha R. Manuchehri ◽  
Todd A. Baughman
Keyword(s):  
Winter Wheat ◽  
Weed Control ◽  
Herbicide Resistance ◽  
Wheat Yield ◽  
Growing Season ◽  
Conyza Canadensis ◽  
Herbicide Resistant ◽  
Time Of Application ◽  
Tillage Practices ◽  
Wide Range

AbstractHalauxifen plus florasulam, thifensulfuron plus fluroxypyr, and bromoxynil plus bicyclopyrone are three, relatively new POST premix herbicides developed for control of broadleaf weeds in winter wheat. These herbicides, along with older products, were evaluated for their control of horseweed in Altus, Perkins, and Ponca City, Oklahoma, during the spring of 2017 and 2018. Horseweed has become a critical weed in Oklahoma because of its extensive germination window, changes in tillage practices, and increase in herbicide-resistant horseweed biotypes. Visual weed control was estimated every 2 wk throughout the growing season and wheat yield was collected from three of the six site-years. Horseweed size ranged from 5 to 20 cm at time of application. The halauxifen plus florasulam, and thifensulfuron plus fluroxypyr combinations were effective at controlling a wide range of horseweed rosette sizes across all locations, whereas control with other treatments varied depending on presence of herbicide resistance, weed size at time of application, and mix partner.

Effect of cultural practices on barley and durum wheat yields in semiarid regions of Tunisia

1997 ◽  
Vol 12 (3) ◽  
pp. 105-109 ◽  
Author(s):  
A. Yahyaoui ◽  
K. M'Hedhbi ◽  
S. Rezgui
Keyword(s):  
Durum Wheat ◽  
Weed Control ◽  
Cultural Practices ◽  
Wheat Yield ◽  
Extreme Temperature ◽  
Conventional Tillage ◽  
Reduced Tillage ◽  
Planting Depth ◽  
Semiarid Regions ◽  
Tillage Practices

AbstractThe semiarid regions (SARs) are characterized by extreme temperature changes, low and unevenly distributed precipitation, hazardous torrential rains, and frequent early spring droughts. Barley is the most highly adapted cereal in SARs, but durum wheat is the most widely cultivated. The area in cereals varies considerably from year to year, and yields are low. Tillage practices are used to conserve both soil and moisture and to prepare the seed bed. However, improved fertilizer use and weed control practices are not being used. Without development of needed cultural and tillage practice systems, the genetic potential of today's varieties cannot be realized. Planting depth and rate, row spacing, fertilizer application, and weed control were investigated under conventional tillage and reduced tillage systems. In on-farm trials, reduced tillage did not significantly affect durum wheat yield but slightly increased barley yield compared with traditional practices. Optimum planting depth for both wheat and barley was 7 cm. Higher seeding rates increased the yield of both crops. Highest yields were obtained at planting rates of 140 kg/ha for wheat and 100 kg/ha for barley. At these rates, maximum yields were achieved at row spacings of 30 cm for barley and 20 cm for durum wheat. Use of fertilizer and weed control increased yields substantially. Sustained and increased production in SARs can be achieved with a “package of practices” approach that incorporates these cultural and tillage practices.

An Agro-Economic Analysis of Field Trials from a Farming Systems Research Perspective: Weed Control in Rainfed Lowland Rice in Senegal

1991 ◽  
Vol 27 (3) ◽  
pp. 231-241 ◽  
Author(s):  
Joshua L. Posner ◽  
Eric W. Crawford
Keyword(s):  
Economic Analysis ◽  
Weed Control ◽  
Farming Systems ◽  
Economic Benefits ◽  
Economic Effects ◽  
Lowland Rice ◽  
Direct Seeding ◽  
Research Perspective ◽  
Systems Research ◽  
Rainfed Lowland

SummaryUsing a farming systems approach, a multidisciplinary team in southern Senegal examined three strategies for weed control in rainfed lowland rice: use of herbicide; replacement of broadcast seeding by row seeding with mechanical seeders; and transplanting compared with direct seeding of rice. Thorough evaluation of the agronomic and economic benefits of these strategies for farmers was facilitated by supplementing the standard analysis of on-farm trials with multivariate analysis incorporating agronomic survey data to explain treatment effects better, and by considering technical and economic effects throughout the farming system. The agro-economic analysis led the team to conclude that: where soils are productive, herbicide use is a profitable investment; when converting to direct seeding, farmers should facilitate weeding by seeding in rows with a mechanical seeder; and transplanting should not be discouraged in areas where it is still feasible, since it is less time-consuming, fits in better with other farm activities and requires less fertilizer.

scholarly journals Effects of Different Weed Control Measures on Leaf Area Index and Yield of Three Varieties of Rice under Two Planting Methods

2020 ◽  
pp. 35-45
Author(s):  
M. M. Olorukooba
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Weed Control ◽  
Rice Variety ◽  
Mean Value ◽  
Lowland Rice ◽  
Control Measures ◽  
Area Index ◽  
Planting Methods ◽  
Paddy Yield

Field trials were conducted during the 2005, 2006 and 2007 rainy season at Irrigation Research Station, Kadawa situated in Sudan savannah agro – ecological zone, Kano state, Nigeria to investigate the effects of different weed control measures on leaf area index and yield of three varieties of lowland rice under two planting methods. The trials were laid out in split – plot design and replicated three times with factorial combination of two planting methods and three varieties in the main plots and weed control treatments in the subplots. The result revealed that transplanting of rice increased leaf area index in 2006, 2007 and mean value for the three years 12WAS / T. Transplanting also resulted in higher paddy yield than direct seeding in 2006 and mean value for the three years. FARO 52 rice variety had significantly higher leaf area index than FARO 50 and FARO 44 in 2005 cropping season. FARO 52 had higher yield in 2006 and the mean value for the three years compare to the other two varieties. Application of pre – emergence oxadiazon at 1.0 Kg per hectare followed by post – emergence piperophos plus propanil at 1.5 Kg per hectare applied at 5 WAS / T gave the highest mean yield for the three years closely followed by hand-pulling weed control measure compared to the weedy check that gave the least mean paddy yield. Application of pre – emergence oxadiazon at 1.0 Kg per hectare followed by post – emergence piperophos plus propanil at 1.5 Kg per hectare applied at 5 WAS / T in transplanted FARO 52 gave the highest mean yield of 5.5 tonnes per hectare for the three years than  weedy check that gave the least mean paddy yield of 2.6 tonnes per hectare. It can be concluded that transplanting of FARO 52 rice variety and combined application of pre-emergence application of oxadiazon at 1.0 kg per hectare followed by post-emergence piperophos plus propanil at 1.5 kg per hectare is therefore recommended as the economically viable integrated package for lowland rice production in the Sudan Savanna agro-ecological zones.

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