Effect of crop rotation, fertilizer and tillage management on spring wheat grain yield and N and P content in a thin Black Chernozem: A long-term study

2011 ◽  
Vol 91 (3) ◽  
pp. 467-483 ◽  
Author(s):  
C. A. Campbell ◽  
G. P. Lafond ◽  
A. J. Vandenbygaart ◽  
R. P. Zentner ◽  
R. Lemke ◽  
...  
Keyword(s):  
Grain Yield ◽  
Crop Rotation ◽  
Spring Wheat ◽  
Wheat Grain ◽  
Term Study ◽  
Long Term Study ◽  
P Content

scholarly journals THE REMOVAL OF PHOSPHORUS, THE GRAIN YIELD OF SPRING WHEAT AT MINIMIZATION OF PRIMARY TILLAGE

2018 ◽  
pp. 81-84
Author(s):  
V. E. Sineshekov ◽  
G. I. Tkachenko
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Crop Rotation ◽  
Spring Wheat ◽  
Mechanical Treatment ◽  
Stationary Field ◽  
Primary Tillage

The results of long-term researches received in stationary field experiment on the Chernozem leached by the average loam of the Novosibirsk Ob region are presented. It is established that the studied systems of basic mechanical treatment did not affect the phosphorus alienation by the grain of spring wheat of Novosibirsk 29. Chemicals significantly increased the removal of this element, which was most clearly seen in the final wheat in the crop rotation «steam - wheat - wheat - wheat».

Evaluation of the CERES and EPIC models for predicting spring wheat grain yield over time

1993 ◽  
Vol 73 (3) ◽  
pp. 713-719 ◽  
Author(s):  
A. P. Moulin ◽  
H. J. Beckie
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Spring Wheat ◽  
Simulation Models ◽  
Triticum Aestivum L ◽  
Crop Rotations ◽  
Wheat Grain ◽  
Reasonable Accuracy ◽  
Over Time

The EPIC and CERES simulation models were used to predict spring wheat (Triticum aestivum L.) grain yield from long-term (1960–1989) crop rotations at Melfort, Saskatchewan. Although both models simulated annual yields poorly, they predicted long-term mean yields with reasonable accuracy. Key words: Spring wheat, Triticum aestivum L., yield, models, CERES, EPIC

scholarly journals Effects of Long-Term (44-years) Tillage Sequences on Wheat Grain Yield in a Dryland Farming System in South Africa

2021 ◽  
Author(s):  
Flackson Tshuma ◽  
Pieter Andreas Swanepoel ◽  
Johan Labuschagne ◽  
James Bennett ◽  
Francis Rayns
Keyword(s):  
Grain Yield ◽  
Crop Rotation ◽  
Farming System ◽  
Crop Productivity ◽  
High Yield ◽  
Wheat Grain ◽  
Tillage Practices ◽  
Rotation System ◽  
Dryland Farming

Abstract AimsTo determine the effects of the long-term (44-years) tillage practices on wheat grain yield in a dryland farming system. MethodsEffects of tillage on soil quality and crop productivity were assessed between 1976 and 2020 in South Africa’s Mediterranean climate zone. Seven tillage treatments were investigated: continuous mouldboard (MB) ploughing to a depth of 200 mm, tine-tillage to 150 mm, shallow tine-tillage (ST) to 75 mm, no-tillage (NT), ST conducted once in two years (ST-NT), ST conducted once in three years (ST-NT-NT), and ST conducted once in four years (ST-NT-NT-NT). Two crop management systems were also investigated: wheat monoculture and crop rotation. We evaluated the long-term wheat grain yield responses from the trial and hypothesised that, with time, the (i) monoculture system will lead to reduced grain yield, (ii) MB sequence will lead to reduced grain yield, (iii) infrequent tillage practices will improve grain yield relative to continuous NT.ResultsThe monoculture system led to reduced grain yield over time due to increased weeds. Compared to other tillage treatments in the monoculture system, the MB sequence led to higher (P<0.05) grain yields. However, in the crop rotation system, the NT treatment was the best option as it led to high yield and lower fuel usage. The infrequent tillage sequences failed to significantly improve the grain yield relative to continuous NT.ConclusionsThe infrequent tillage sequences were no better than the NT practice. We recommend that farmers opt for NT and crop rotation to ensure sustainability and avoid intensive tillage.

Quinapril for Sclerosis Failed in Long-Term Study

2007 ◽  
Vol 38 (6) ◽  
pp. 14
Author(s):  
DAMIAN MCNAMARA
Keyword(s):  
Term Study ◽  
Long Term Study
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