scholarly journals Influence of adjustable front ballast on tractor fuel consumption at winter wheat stubble harrowing

2020 ◽  
Author(s):  
Vidas Damanauskas ◽  
Algirdas Janulevicius
Keyword(s):  
Winter Wheat ◽  
Fuel Consumption ◽  
Wheat Stubble

Biomass production of weeds on the winter wheat stubble in long-term fertilization field experiment

2005 ◽  
Vol 33 (1) ◽  
pp. 251-254 ◽  
Author(s):  
Éva Lehoczky ◽  
András Kismányoky ◽  
Tamás Kismányoky
Keyword(s):  
Winter Wheat ◽  
Field Experiment ◽  
Biomass Production ◽  
Wheat Stubble

Feasibility of Non-irrigated Soybean (Glycine max) Production in the Semi-arid Central Great Plains

1991 ◽  
Vol 5 (2) ◽  
pp. 369-375 ◽  
Author(s):  
Gail A. Wicks ◽  
Robert N. Klein
Keyword(s):  
Winter Wheat ◽  
Great Plains ◽  
The United States ◽  
Grain Sorghum ◽  
Production Costs ◽  
Wheat Grain ◽  
No Till ◽  
Wheat Stubble ◽  
Semi Arid Region ◽  
Semi Arid

We conducted research to determine if soybeans can be grown successfully in a no-till environment, in the semi-arid areas of the central Great Plains near North Platte, NE. Soybeans planted no-till into winter wheat stubble that was sprayed with glyphosate yielded more than when planted into soil that was rototilled in a winter wheat-soybean-fallow rotation. However, grain yield averaged only 420 kg ha-1during 1975, 1976, and 1977. No-till soybean grown in a winter wheat-grain sorghum-soybean rotation during 1982 through 1985 yielded an average of 1370 kg ha-1. Low yields were associated with lack of precipitation during the fallow period after winter wheat harvest or grain sorghum harvest and during the soybean pod elongation and filling period. Several herbicides gave excellent weed control in soybeans when applied either after wheat harvest, early preplant, or at planting time. None of the herbicides persisted long enough to reduce grain yields of winter wheat planted into the soybean residue. With present production costs these nonirrigated rotations are not economical in the semi-arid region of the central Great Plains of the United States.

Weed Control in Corn Planted into Untilled Winter Wheat Stubble 1

1982 ◽  
Vol 74 (3) ◽  
pp. 521-526 ◽  
Author(s):  
Orvin C. Burnside ◽  
Gail A. Wicks
Keyword(s):  
Winter Wheat ◽  
Weed Control ◽  
Wheat Stubble

Trap Strip and Field Border Modification for Management of the Wheat Stem Sawfly (Hymenoptera: Cephidae)

2001 ◽  
Vol 36 (1) ◽  
pp. 34-45 ◽  
Author(s):  
Wendell L. Morrill ◽  
David K. Weaver ◽  
Gregory D. Johnson
Keyword(s):  
Winter Wheat ◽  
Production System ◽  
Wheat Cultivar ◽  
Growing Season ◽  
Border Effect ◽  
Wheat Stem Sawfly ◽  
New Crops ◽  
Wheat Stubble ◽  
Summer Fallow ◽  
Semi Arid

The alternate-year summer fallow wheat production system predominates in the semi-arid prairie regions of Montana. These farms consist of the current crop and idle fields in which the previous year's crop was located. Larvae of the wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), overwinter in post-harvest wheat stubble. Adults appear and disperse to new crops during the following growing season. Adults begin oviposition as soon as suitable hosts are encountered; therefore, larval infestations usually are concentrated along field borders. We tested several types of trap strips as intercepts to reduce dispersion of adult sawflies into fields. The most successful system was a fall-planted winter wheat trap that protected spring-planted wheat. These trap strips utilized the “border effect” as well as the higher attractiveness of the earlier maturing winter wheat. In another trial, losses were reduced by planting a semi-resistant solid-stemmed wheat cultivar within the border of a comparatively higher yielding hollow-stemmed cultivar.

scholarly journals Occurrence and Survival of Apothecia of the Eyespot Pathogens Oculimacula acuformis and O. yallundae on Wheat Stubble in the U.S. Pacific Northwest

Plant Disease ◽  
2016 ◽  
Vol 100 (5) ◽  
pp. 991-995 ◽  
Author(s):  
D. I. Vera ◽  
T. D. Murray
Keyword(s):  
Winter Wheat ◽  
Sexual Reproduction ◽  
Pacific Northwest ◽  
Soil Surface ◽  
Genotypic Diversity ◽  
The United States ◽  
The Pacific ◽  
Wheat Stubble ◽  
Oculimacula Yallundae

Eyespot is a chronic disease of wheat caused by Oculimacula yallundae and O. acuformis that results in premature ripening of grain, lodging, and reduced grain yield. Discovery of the sexual stage of these Oculimacula spp. in the Pacific Northwest (PNW) of the United States is relatively recent and the role of apothecia in the epidemiology of eyespot is unclear. Our goals were to determine whether and when apothecia of these Oculimacula spp. are found in the PNW, and monitor their ability to survive over summer and over winter. Seventy-three harvested commercial wheat fields in Idaho, Oregon, and Washington were surveyed for apothecia during spring and fall 2012 and spring 2013. Apothecia of both species were found in both spring and fall in 19% of fields. Apothecia survived on straw placed on the soil surface over the summer but not the winter. This is the first report of O. yallundae apothecia in commercial wheat fields in the PNW. Occurrence of apothecia in spring and fall demonstrates that sexual reproduction of both species occurs regularly in the PNW and at a time when ascospores could serve as primary inoculum for infection of winter wheat. Results of this study are consistent with previous population genetic studies that found high genotypic diversity of both eyespot pathogens in winter wheat fields and provides a baseline for understanding the influence of sexual reproduction on population dynamics and genetics of both pathogens.

scholarly journals Fuel Consumption, Work Time Expenditures and Winter Wheat Yield in Case of Non-Tillage and Strip Soil Cultivation

2017 ◽  
Vol 21 (3) ◽  
pp. 69-75
Author(s):  
Tomasz Piskier
Keyword(s):  
Winter Wheat ◽  
Fuel Consumption ◽  
Wheat Yield ◽  
Work Time ◽  
Soil Cultivation ◽  
Wheat Cultivation ◽  
Winter Wheat Yield ◽  
Cultivation Technology ◽  
The One ◽  
Time Expenditures

AbstractA single-factor field experiment concerned calculation of fuel consumption, time expenditure of the working time of machines, and winter wheat yield size in three technologies of soil cultivation. Fuel consumption in the tillage and non-tillage technology was comparable and amounted approximately to 31 l·ha−1, but the highest consumption was generated by basic soil cultivation (tillage or heavy cultivation cultivator). Fuel consumption in the strip cultivation technology was the lowest and it was 23.0 l·ha−1. Non-tillage cultivation allowed reduction of the time necessary to carry out the wheat cultivation technology by 28.8% (in comparison to tillage cultivation). On the other hand, strip cultivation allowed reduction of the total time of machines operation by 48.5 % (in comparison to tillage cultivation). The yield of winter wheat cultivated in the non-tillage technology was at the average by 4% better than the one cultivated in tillage cultivation. The highest yield of seed (7.63 t·ha−1) was obtained in the strip cultivation technology (by 6.7% in comparison to tillage cultivation).

Weed Control and Crop Injury in Ecofallow Corn (Zea mays) Using Imazethapyr

1997 ◽  
Vol 11 (4) ◽  
pp. 748-754
Author(s):  
Gail A. Wicks ◽  
Garold W. Mahnken ◽  
Gordon E. Hanson
Keyword(s):  
Zea Mays ◽  
Winter Wheat ◽  
Weed Control ◽  
Field Experiments ◽  
Corn Hybrids ◽  
Control Option ◽  
No Till ◽  
Herbicide Treatment ◽  
Wheat Stubble ◽  
Better Than

Imidazolinone-resistant and -tolerant corn hybrids give growers a new weed control option. Field experiments were conducted in 1993 and 1994 to evaluate imazethapyr for controlling weeds in no-till corn planted into winter wheat stubble in a winter wheat–ecofallow corn rotation. Imidazolinone-tolerant (IT) and imidazolinone-resistant (IR) corn were protected genetically from injury by imazethapyr that was applied preplant, preemergence, or postemergence to ‘Pioneer Brand 3417,’ ‘Pioneer Brand 3417 IR,’ ‘ICI Seeds 8532,’ and ‘ICI Seeds 8532 IT’ hybrids. No difference in corn injury occurred between IR and IT corn. Imazethapyr applied to resistant or tolerant corn hybrids could be used to control weeds in ecofallow corn. Imazethapyr at 35 or 70 g ai/ha controlled triazine-resistant kochia better than the standard herbicide treatment of metolachlor plus cyanazine.

INFLUENCE OF SOIL MANAGEMENT METHOD DURINGSTUBBLE PERIOD ON CORN PRODUCTIVITY

1970 ◽  
pp. 44-47
Author(s):  
I. Т. Tamazaev ◽  
М. R. Musaev ◽  
G. N. Gasanov
Keyword(s):  
Winter Wheat ◽  
Soil Fertility ◽  
Crop Rotation ◽  
Biomass Yield ◽  
Clay Loam ◽  
Heavy Clay ◽  
Wheat Stubble ◽  
Corn Productivity ◽  
Management Method ◽  
Yield Formation

Productivity of the natural phytocenosis and maize for silage in stubble sowings under two ways of the biomass yield usage in Kirov FSSU in Khasavyurtovskiy district in the crop rotation link “winter wheat+stubble crops+maize for grain” are studied. The soil is light-brown heavy clay loam. It was found that during stubble period after winter wheat harvesting it can be obtained 21.9 t/ha of the natural phytocenosis herbage and 33.0 t/ha maize for grain. However, cultivation of the stubble corn is associated with additional financial and material-and-technical outgoings. Plowing under of the herbage and application of fertilizers and winter wheat straw without tillage operations during nature phytocenosis yield formation contributes to improving of the soil fertility indicators. The number of agronomically the most valuable structure aggregates in the topsoil layout are increasing to 63%, soil porosity- to 54.2%, soil density is reduced to 1.20 g/ cm3, soil nutritive regime is improving. The soil fertility indicators optimization allows to increase yield of next corn in crop rotation with a phytomass plowing under to 36.2, stubble corn- to 46.0 %

Downy Brome (Bromus tectorum) Emergence Variability in a Semiarid Region

1996 ◽  
Vol 10 (4) ◽  
pp. 750-753 ◽  
Author(s):  
R. L. Anderson
Keyword(s):  
Winter Wheat ◽  
Great Plains ◽  
Wind Erosion ◽  
Bromus Tectorum ◽  
Control Strategies ◽  
Seedling Emergence ◽  
Plant Diseases ◽  
Semiarid Region ◽  
Downy Brome ◽  
Wheat Stubble

This study characterized seedling emergence of downy brome from August to early December over a 6-yr period. Seedlings were counted weekly in quadrats established in winter wheat stubble at Akron, CO. Seedling emergence varied among years, which was caused by erratic seasonal precipitation. Producers delay planting of winter wheat to reduce downy brome density in the crop, but in only 1 yr out of 6 would producers have benefited from this control strategy. Furthermore, delayed planting has negative crop consequences: less grain yield and more susceptibility to plant diseases and wind erosion because of less fall plant growth. Because fall precipitation is erratic in the semiarid Great Plains, other control strategies, such as nitrogen placement and increased seeding rates of winter wheat, would be more effective for downy brome management, yet not detrimental to winter wheat production.

Weed Control in Ecofallow Corn (Zea mays) with Clomazone

1996 ◽  
Vol 10 (3) ◽  
pp. 495-501 ◽  
Author(s):  
Gail A. Wicks ◽  
Gary W. Mahnken ◽  
Gordon E. Hanson
Keyword(s):  
Winter Wheat ◽  
Weed Control ◽  
Field Studies ◽  
Corn Yield ◽  
Downy Brome ◽  
Optimum Time ◽  
Time Of Application ◽  
Wheat Stubble ◽  
Corn Plants ◽  
Better Than

Field studies were conducted from 1986 through 1989 to determine the feasibility of using clomazone in a winter wheat-corn-fallow rotation. Clomazone at 1.1 kg ai/ha did not control emerged downy brome in autumn nor did it control redroot pigweed and tumble pigweed that emerged after a spring application of paraquat at 0.6 kg ai/ha. However, clomazone plus atrazine at 0.6 plus 2.2 kg ai/ha provided weed control in winter wheat stubble from October to corn harvest 12 mo later. Corn yields from this treatment were equal to or greater than the conventional practice of applying atrazine plus glyphosate at 2.2 plus 0.4 kg ae/ha in the fall followed by a spring application of metolachlor plus dicamba at 2.8 ai plus 0.3 kg ae/ha. When kochia densities were high, clomazone plus atrazine controlled triazine-resistant kochia better than metolachlor plus dicamba. Atrazine at 2.2 kg/ha applied in autumn followed by clomazone at 0.8 kg/ha in April generally caused more corn injury than when the same rate of clomazone was applied in autumn with the atrazine. The percent of bleached corn plants varied with planter, year, time of application, and rate of clomazone applied. The optimum time to apply clomazone at 0.6 kg/ha was in autumn with atrazine. This treatment caused some corn bleaching but produced the highest corn yield over 3 yr. In a dry autumn and spring, less clomazone injury occurred with a planter equipped with row cleaners than those without. The injury pattern associated with planters was inconsistent when precipitation was average and no injury occurred in a wet autumn and spring.

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