Soil respiration from winter wheat-based cropping systems in the US Southern Great Plains as influenced by tillage managements

2019 ◽  
Vol 69 (5) ◽  
pp. 377-385 ◽  
Author(s):  
Tanka P. Kandel ◽  
Prasanna H. Gowda ◽  
Brian K. Northup ◽  
Alexandre C. Rocateli
Keyword(s):  
Soil Respiration ◽  
Winter Wheat ◽  
Great Plains ◽  
Cropping Systems ◽  
Southern Great Plains ◽  
The Us

Rotational Cropping Systems to Reduce Cheat (Bromus secalinus) Densities

2006 ◽  
Vol 20 (2) ◽  
pp. 445-452 ◽  
Author(s):  
Jon C. Stone ◽  
Thomas F. Peeper ◽  
Amanda E. Stone
Keyword(s):  
Winter Wheat ◽  
Great Plains ◽  
Cropping Systems ◽  
Control Strategies ◽  
Growing Season ◽  
Grain Sorghum ◽  
Economic Returns ◽  
Southern Great Plains ◽  
Net Returns ◽  
Bromus Secalinus

In the Southern Great Plains, producers of hard red winter wheat seek sustainable methods for controlling cheat and improving economic returns. Experiments were conducted at two sites in north-central Oklahoma to determine the effect of cheat management programs, with various weed control strategies, on cheat densities and total net returns. The cheat management programs, initiated following harvest of winter wheat, included conventionally tilled, double-crop grain sorghum (Sorghum bicolorL.) followed by soybean (Glycine maxL.); and continuous winter wheat. Rotating out of winter wheat for one growing season increased yield of succedent wheat up to 32% and 42% at Billings and Ponca City, respectively. Dockage due to cheat in the succedent wheat was reduced up to 78% and 87% by rotating out of winter wheat for one growing season at Billings and Ponca City, respectively. Cheat management programs including a crop rotation with herbicides applied to the grain sorghum, except for an application of atrazine + metolachlor at Ponca City, improved total net returns over the nontreated continuous wheat option. Cheat panicles in the succedent wheat were reduced up to 87% by rotation out of winter wheat for one growing season.

scholarly journals Productivity and water use in intensified forage soybean-wheat cropping systems of the US southern Great Plains

2021 ◽  
Vol 265 ◽  
pp. 108086
Author(s):  
Gurjinder S. Baath ◽  
Brian K. Northup ◽  
Srinivas C. Rao ◽  
Vijaya Gopal Kakani
Keyword(s):  
Water Use ◽  
Great Plains ◽  
Cropping Systems ◽  
Southern Great Plains ◽  
The Us

Carbon dioxide and water vapor fluxes of multi-purpose winter wheat production systems in the U.S. Southern Great Plains

2021 ◽  
Vol 310 ◽  
pp. 108631
Author(s):  
Pradeep Wagle ◽  
Prasanna H. Gowda ◽  
Brian K. Northup ◽  
James P.S. Neel ◽  
Patrick J. Starks ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Water Vapor ◽  
Winter Wheat ◽  
Great Plains ◽  
Production Systems ◽  
Wheat Production ◽  
Southern Great Plains ◽  
The U.S

scholarly journals Nitrogen fertility in semiarid dryland wheat production is challenging for beginning organic farmers

2012 ◽  
Vol 29 (1) ◽  
pp. 42-47 ◽  
Author(s):  
Drew J. Lyon ◽  
Gary W. Hergert
Keyword(s):  
Winter Wheat ◽  
Great Plains ◽  
Green Manure ◽  
Crop Production ◽  
Cropping Systems ◽  
Farming Systems ◽  
Cattle Manure ◽  
Wheat Crop ◽  
N Fertility ◽  
Summer Fallow

AbstractOrganic farming systems use green and animal manures to supply nitrogen (N) to their fields for crop production. The objective of this study was to evaluate the effect of green manure and composted cattle manure on the subsequent winter wheat (Triticum aestivumL.) crop in a semiarid environment. Dry pea (Pisum sativumL.) was seeded in early April and terminated at first flower in late June. Composted cattle manure was applied at 0, 11.2 or 22.5 Mg ha−1just prior to pea termination. Winter wheat was planted in mid September following the green manure or tilled summer fallow. No positive wheat response to green manure or composted cattle manure was observed in any of the 3 years of the study. In 2 of the 3 years, wheat yields and grain test weight were reduced following green manure. Green manure reduced grain yields compared with summer fallow by 220 and 1190 kg ha−1in 2009 and 2010, respectively. This may partially be explained by 40 and 47 mm less soil water at wheat planting following peas compared with tilled summer fallow in 2008 and 2009, respectively. Also, in 2008 and 2009, soil nitrate level averaged 45 kg ha−1higher for black fallow compared with green manure fallow when no compost was added. Organic growers in the semiarid Central Great Plains will be challenged to supply N fertility to their winter wheat crop in a rapid and consistent manner as a result of the inherently variable precipitation. Growers may need to allow several years to pass before seeing the benefits of fertility practices in their winter wheat cropping systems.

Effects of warming and reduced precipitation on soil respiration and N2O fluxes from winter wheat-soybean cropping systems

Geoderma ◽  
2019 ◽  
Vol 337 ◽  
pp. 956-964 ◽  
Author(s):  
Zhenghua Hu ◽  
A.R.M. Towfiqul Islam ◽  
Shutao Chen ◽  
Bingbing Hu ◽  
Shuanghe Shen ◽  
...  
Keyword(s):  
Soil Respiration ◽  
Winter Wheat ◽  
Cropping Systems ◽  
N2o Fluxes

Wheat Curl Mite Resistance in Hard Winter Wheat in the US Great Plains

Crop Science ◽  
2016 ◽  
Vol 57 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Smit Dhakal ◽  
Chor-Tee Tan ◽  
Li Paezold ◽  
Maria P. Fuentealba ◽  
Jackie C. Rudd ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Great Plains ◽  
Wheat Curl Mite ◽  
The Us ◽  
Us Great Plains

scholarly journals Modeling Resource Use Responses to Macroeconomic Changes: Water in the US Southern Great Plains

2013 ◽  
Vol 04 (01) ◽  
pp. 8-19
Author(s):  
Justin Weinheimer ◽  
Erin Wheeler-Cook ◽  
Don Ethridge ◽  
Darren Hudson
Keyword(s):  
Great Plains ◽  
Resource Use ◽  
Southern Great Plains ◽  
The Us

scholarly journals Ten Years of Aerosol Effects on Single-Layer Overcast Clouds over the US Southern Great Plains and the China Loess Plateau

2020 ◽  
Vol 2020 ◽  
pp. 1-15 ◽  
Author(s):  
Hongru Yan ◽  
Tianhe Wang
Keyword(s):  
Great Plains ◽  
Indirect Effect ◽  
Negative Relationship ◽  
Single Layer ◽  
Cloud Base ◽  
Atmospheric Conditions ◽  
Southern Great Plains ◽  
Aerosol Loading ◽  
The Us ◽  
The Impact

Using almost 10 years of observations of clouds and aerosols from the US Southern Great Plains (SGP) atmospheric observatory and the Semi-Arid Climate and Environment Observatory of Lanzhou University (SACOL) in China, the impact of aerosols on single-layer overcast clouds over continental land for different regimes were investigated. Atmospheric conditions at the two sites were first compared in an attempt to isolate the influence of aerosols on cloud properties from dynamic and thermodynamic influences. Cloud types and amounts are similar at the two sites. The dominant aerosol types at the SGP and SACOL sites are sulphate and dust, respectively, with greater aerosol optical depths (AODs) and absorption at the SACOL site. Aerosol first indirect effect (FIE) ranges from 0.021 to 0.152 and from −0.078 to 0.047 at the SGP and SACOL sites, respectively, when using the AOD below cloud base as CCN proxy. Although differences exist, the influence of meteorological conditions on the FIE at the two sites is consistent. FIEs are easily detected under descending motion and dry condition. The FIE at the SGP site is larger than that at the SACOL site, which suggests that the cloud albedo effect is more sensitive under relatively cleaner atmospheric conditions and the dominating aerosol at the SACOL site has less hygroscopicity. The radiative forcing of the FIE over the SGP site is −3.2 W m−2 for each 0.05 increment in FIE. Cloud durations generally prolong as aerosol loading increases, which is consistent with the hypothesis of the aerosol second indirect effect. The negative relationship between cloud duration time and aerosol loading when aerosol loading reaches a large value further might suggest a semidirect effect.

scholarly journals No‐Till Diversified Cropping Systems for Efficient Allocation of Precipitation in the Southern Great Plains

age ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 1-8
Author(s):  
Andres Patrignani ◽  
Chad B. Godsey ◽  
Tyson E. Ochsner
Keyword(s):  
Great Plains ◽  
Cropping Systems ◽  
Efficient Allocation ◽  
Southern Great Plains ◽  
No Till
Sign in / Sign up

Export Citation Format

Share Document