Effect of N and P fertilizer on establishment of alfalfa with a wheat companion crop

1991 ◽  
Vol 71 (1) ◽  
pp. 105-113
Author(s):  
S. Bittman ◽  
J. Waddington ◽  
D. A. Pulkinen
Keyword(s):  
Triticum Aestivum ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
Forage Yield ◽  
Wheat Crop ◽  
Silty Clay ◽  
P Fertilizer ◽  
Silty Loam ◽  
Companion Crop ◽  
N Rates

This study examines the effect of fertilizer applied before seeding on the grain yield of a wheat (Triticum aestivum L.) companion crop and on the forage yield and crude protein content of the underseeded alfalfa (Medicago media Pers.) in subsequent years. The crops were seeded into stubble at five sites in northeast Saskatchewan on soils ranging in texture from silty loam to silty clay. Combinations of three N rates (0, 57 and 114 kg ha−1) and three P rates (0, 28.5, 57 kg ha−1) were applied before seeding to the companion crop plots. Alfalfa was also seeded alone (clear-seeded) at the three P rates. Application of N increased wheat yield but lowered yield of companion-seeded alfalfa to a range of 65–95% of clear-seeded alfalfa in the year after seeding, depending on wheat yield. Alfalfa yields in subsequent years were more variable where wheat yields were high than where wheat yields were low. The wheat crop yielded 1300–2600 kg ha−1 of grain but reduced alfalfa yield over three years by 400–2100 kg ha−1. Phophorus increased yield of wheat without decreasing accumulated yield of alfalfa over 3 yr. The results of this study support the practice in northeast Saskatchewan of supplying N to the requirement of wheat and P to the greater requirement of alfalfa if these crops are seeded together. Key words: Forage, underseeding, yield, protein, Medicago media Pers., Triticum aestivum L.

scholarly journals Spring wheat yield (Triticum aestivum L.) when applying selenium fertilizers in extreme growing conditions

2021 ◽  
Vol 843 (1) ◽  
pp. 012038
Author(s):  
I I Seregina ◽  
I G Makarskaya ◽  
A S Tsygutkin ◽  
I V Kirichkova
Keyword(s):  
Triticum Aestivum ◽  
Water Supply ◽  
Spring Wheat ◽  
Sodium Selenite ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
Wheat Crop ◽  
Wheat Varieties ◽  
Negative Effect ◽  
Positive Effect

Abstract To study the effect of sodium Selenite application different methods on the yield of spring wheat varieties, depending on the conditions of water supply, a series of vegetation experiments in accordance with the methodology were carried out. The object of the study is spring wheat of the Zlata variety (Triticum aestivum L.). It was found that the effect of selenium on the yield of wheat of the Zlata variety depended on the method of its application and the conditions of water supply. With optimal water supply, the positive effect of selenium on the yield of spring wheat plants was revealed with both methods of applying sodium selenite. It was found that in conditions of drought, the positive effect of selenium was obtained with both methods of using sodium selenite. The greatest efficiency of selenium is obtained in foliar processing of plants. The increase in grain weight in this variant was 1.4 times. The increase in the share of the agronomic significant part of the wheat crop yield to 36% is shown, which indicates the decrease in the negative effect of drought on the formation of spring wheat yield when using foliar processing of plants.

scholarly journals SUNFLOWER COMPETITION IN WHEAT

1984 ◽  
Vol 64 (1) ◽  
pp. 105-111 ◽  
Author(s):  
GREG R. GILLESPIE ◽  
STEPHEN D. MILLER
Keyword(s):  
Triticum Aestivum ◽  
Helianthus Annuus ◽  
Flag Leaf ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
Wheat Crop ◽  
Upper Midwest ◽  
Leaf Stage ◽  
Seeding Date ◽  
Field Season

Sunflower (Helianthus annuus L.) is grown in rotation with wheat (Triticum aestivum L.) in the upper midwest of the U.S.A. However, volunteer sunflower is often a problem in wheat planted the year following sunflower. Wheat yields as influenced by wheat seeding date and sunflower density, duration of sunflower competition and rate of sunflower control were determined in the field. Season-long sunflower competition at densities of 3, 9, and 23 plants per square metre reduced yield of the following wheat crop by an average of 11, 19, and 33%, respectively, averaged over seeding date and location. Sunflower was more competitive with wheat seeded in late than in early May, particularly at the lower sunflower densities. Wheat yield was reduced 22% when 24 sunflower plants/m2 were allowed to compete until the wheat flag-leaf stage. Wheat yields obtained were similar when volunteer sunflower was controlled by postemergence MCPA [[(4-chloro-o-tolyl)oxy] acetic acid], bromoxynil (3,5-dibromo-4-hydroxybenzonitrile), or bromoxynil plus MCPA despite the slower rate of control with MCPA compared to bromoxynil or bromoxynil plus MCPA. This research indicates that wheat following sunflower should be planted early and sunflower densities of nine plants per square metre or higher should be removed before the flag-leaf stage to prevent yield reductions.Key words: Density, duration, bromoxynil, MCPA, Helianthus annuus, Triticum aestivum

THE EFFECT OF DEEP BANDING N AND P FERTILIZER ON THE YIELD OF CANOLA (Brassica napus L.) AND SPRING WHEAT (Triticum aestivum L.)

1990 ◽  
Vol 70 (4) ◽  
pp. 629-639 ◽  
Author(s):  
W. F. NUTTALL ◽  
R. G. BUTTON
Keyword(s):  
Triticum Aestivum ◽  
Brassica Napus ◽  
Grain Yield ◽  
Triticum Aestivum L ◽  
First Year ◽  
Silty Clay ◽  
Brassica Napus L ◽  
P Fertilizer ◽  
Seed Placement ◽  
Half Seed

This study was conducted to determine if deep banding of P fertilizer was as efficient as placing P in a band with the seed. Phosphorus fertilizer (MAP) was deep banded at rates of 0, 10, 20, and 30 kg of P ha−1 which was compared with equal rates applied with the seed, and with one-half seed placed, one-half deep banded. The P rates were applied onto the same plots each year in a cropping sequence of canola (Brassica napus L.), four crops of wheat (Triticum aestivum L.) and then canola. Plots were located on a Melfort silty clay soil (Orthic Black Chernozem). In combination with MAP treatments, ammonium nitrate was applied by deep banding and by broadcast-incorporation to bring the total N application rate to 75 kg ha−1. Control treatments of 0–0 and 11–20 kg of N-P, respectively, were also included. In the first year of the experiment, when soil moisture conditions were dry, seed placement of the P fertilizer, on average, resulted in a significantly higher grain yield (1.01 t ha−1) of canola than deep banding (0.88 t ha−1). In the last year of the experiment, canola grain yields for the two placements were not significantly different (1.87 vs. 1.83 t ha−1). Over the 4 yr that wheat was grown there was no significant difference in grain yield between seed placed P and deep banding (2.97 vs. 2.95 t ha−1). Seed placement of P resulted in a higher grain yield (3.05 t ha−1) with N broadcast than with N deep banded (2.90 t ha−1), but with half-seed plus half-deep-banded P the yield was higher with N deep banded (3.08 t ha−1) than with broadcast-incorporated (2.87 t ha−1). The application of N and P over the 6 yr increased the available P in the soil from 7.5 (control) to 12.9 μg of P g−1 soil (N P treatments with 75 kg N ha−1). In general the application of P fertilizer either by deep banding or placement with the seed of the crop gave similar yields with the exception that at the low rates of P, seed placement was better for canola in the first year of the crop sequence. Key words: Deep banding, N, P, canola, wheat, placement

scholarly journals Comparison of Herbicides for Control of Diclofop-Resistant Italian Ryegrass in Wheat

Agriculture ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 135 ◽  
Author(s):  
Taghi Bararpour ◽  
Ralph Hale ◽  
Gurpreet Kaur ◽  
Jason Bond ◽  
Nilda Burgos ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Lolium Perenne ◽  
Wheat Yield ◽  
Field Studies ◽  
Triticum Aestivum L ◽  
Italian Ryegrass ◽  
Lolium Perenne L

Diclofop-resistant Italian ryegrass (Lolium perenne L. ssp. Multiflorum (Lam.) Husnot) is a dominant weed problem in non-irrigated winter wheat (Triticum aestivum L.) in mid-south USA. Field studies were conducted from 2001 to 2007 to evaluate the efficacy of herbicides for diclofop-resistant ryegrass control and effect on wheat yield. In 2001 through 2004, chlorsulfuron/metsulfuron at 0.026 kg ha−1 preemergence (PRE) followed by (fb) mesosulfuron at 0.048 kg ha−1 at 4-leaf to 2-tiller ryegrass provided 89% control of diclofop-resistant Italian ryegrass, resulting in the highest wheat yield (3201 kg ha−1). Flufenacet/metribuzin at 0.476 kg ha−1 applied at 1- to 2-leaf wheat had equivalent Italian ryegrass control (87%), but lesser yield (3013 kg ha−1). In 2005–2006, best treatments for Italian ryegrass control were chlorsulfuron/metsulfuron, 0.013 kg ha−1 PRE fb mesosulfuron 0.015 kg ha−1 at 3- to 4-leaf ryegrass (92%); metribuzin, 0.280 kg ha−1 at 2- to 3- leaf wheat fb metribuzin at 2- to 3-tiller ryegrass (94%); chlorsulfuron/metsulfuron (0.026 kg ha−1) (89%); and flufenacet/metribuzin at 1- to 2-leaf wheat (89%). Chlorsulfuron/metsulfuron fb mesosulfuron provided higher yield (3515 kg ha−1) than all other treatments, except metribuzin fb metribuzin.

Grain yield and N benefits to sequential wheat and barley crops from single-year alfalfa, berseem and red clover, chickling vetch and lentil

2002 ◽  
Vol 82 (1) ◽  
pp. 53-65 ◽  
Author(s):  
W. J. Bullied ◽  
M. H. Entz ◽  
S. R. Smith, Jr. ◽  
K. C. Bamford
Keyword(s):  
Field Experiments ◽  
Crop Yields ◽  
N Uptake ◽  
Wheat Yield ◽  
Cropping System ◽  
Wheat Crop ◽  
First Year ◽  
Silty Clay ◽  
Hordeum Vulgare L ◽  
N Content

Single-year hay alfalfas (Medicago sativa L.), berseem (Trifolium alexandrinum L.) and red clovers (Trifolium pratense L.), chickling vetch (Lathyrus sativus L.) and lentil (Lens culinaris Medik.) were evaluated for rotational yield and N benefits to the following first-year wheat (Triticum aestivum L.) and second-year barley (Hordeum vulgare L.) crops. Field experiments were initiated in 1997 and 1998 on a Riverdale silty clay soil at Winnipeg, Manitoba. Yield and N content of the following wheat crop were increased following legumes compared to wheat following a canola control. Wheat yield and N content averaged 2955 kg ha–1 and 76.1 kg ha–1, respectively, following the chickling vetch and lentil, 2456 kg ha–1 and 56.4 kg ha–1 following single-year hay legumes, compared with 1706 kg ha–1 and 37.9 kg ha–1 following canola. Non-dormant alfalfas (dormancy rating of eight or greater) contributed to larger grain yields than the dormant alfalfas only in the first year of each experiment. The chickling vetch and lentil provided similar or higher subsequent crop yields and N content for 2 yr compared to a canola control or fallow treatment. This study shows that some increase in yield can be achieved by using a single-year alfalfa hay crop instead of fallow; however, exclusive green manuring of chickling vetch and lentil crops can produce the most increase in yield and N uptake in subsequent crops. Key words: Alfalfa (single-year), legumes (annual), green manure, nitrogen, cropping system

AC Abbey hard red spring wheat

2000 ◽  
Vol 80 (1) ◽  
pp. 123-127 ◽  
Author(s):  
R. M. DePauw ◽  
J. M. Clarke ◽  
R. E. Knox ◽  
M. R. Fernandez ◽  
T. N. McCaig ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Spring Wheat ◽  
Stem Rust ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
Common Bunt ◽  
Canadian Prairies ◽  
Wheat Stem Sawfly ◽  
Hard Red Spring Wheat ◽  
Moderate Resistance

AC Abbey, hard red spring wheat (Triticum aestivum L.), is adapted to the Canadian prairies. It is significantly shorter than any of the check cultivars and has solid stems. AC Abbey expressed higher grain yield, earlier maturity, and heavier kernels than AC Eatonia, the solidstem check cultivar. It is resistant to the wheat stem sawfly (Cephus cinctus Nort.) and to prevalent races of common bunt and has moderate resistance to leaf rust and stem rust. AC Abbey is eligible for grades of Canada Western Red Spring wheat. Key words: Triticum aestivum L., red spring wheat, yield, wheat stem sawfly, plant height, maturity

Alternatives to summerfallow and subsequent wheat and barley yield on a Dark Brown soil

1996 ◽  
Vol 76 (2) ◽  
pp. 223-228 ◽  
Author(s):  
S. A. Brandt
Keyword(s):  
Grain Yield ◽  
Green Manure ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
Wheat Crop ◽  
Green Manures ◽  
Full Bloom ◽  
Hordeum Vulgare L ◽  
Canadian Prairies ◽  
Suitable Alternative

A number of alternative options to summerfallow are feasible on the Dark Brown soils of the Canadian prairies. These include recropping to cereal or pulse crops, as well as use of summerfallow substitute crops, such as legume green manures. The objective of this study was to evaluate these options for their impact on the productivity of subsequent crops. Green-manure lentil (Lens culinaris Medic.), incorporated at either the bud or full-bloom stage of growth, field pew (Pisum sativum L.), grain lentil, and wheat (Triticum aestivum L.) grown as grain were compared with conventional summerfallow for their impact on yield of a succeeding wheat crop and of barley (Hordeum vulgare L.) grown the year after wheat on a Dark Brown Chernozemic soil at Scott, Saskatchewan. During the 5-yr period, 1984–1988, above-ground dry-matter production of green-manure lentil averaged 500 kg ha−1 at the bud stage of growth but more than doubled to 3170 kg ha−1, by full bloom. Grain yield of field pea averaged 1470 kg ha−1, while that of grain lentil, unfertilized wheat, and N-fertilized wheat averaged 1220, 1290 and 1490 kg ha−1, respectively. Considerable year-to-year yield variation occurred with all crops, variability being greatest for lentil. Yield of wheat grown after lentil green manure was similar to yield of wheat on summerfallow (2340 kg ha−1) during each of the 5 yr for both early (2360 kg ha−1) and late (2250 kg ha−1) incorporation. Wheat yield after pea (2210 kg ha−1) or grain lentil (2080 kg ha−) was reduced in 1987, but it was equal to wheat yield after summerfallow during the remaining 4 yr. Yield of wheat on wheat stubble, whether fertilized with N (1830 kg ha−1) or not (1610 kg ha−1), was generally lower than on summerfallow. Yield of barley grown the following year was generally unaffected by summerfallow or summerfallow substitute treatments. The higher value and similar productivity of pea and grain lentil, compared with wheat, combined with their favourable impact on subsequent wheat yield, should make these crops attractive alternatives to summerfallow. On fields unsuited to pea or grain lentil production, lentil green manures may be a suitable alternative to summerfallow because they should reduce soil degradation, although lentil green manures leave little residue to protect against soil erosion where through incorporation is practised. Summerfallow or green manure incorporated early or late generally resulted in greater available soil water and N for a succeeding crop than did grain lentil, pea or wheat. Key words: Green manuring, legume effect, recropping, lentil, grain yield, summerfallow alternatives

scholarly journals Efficacy of Exogenous Applications of Glucose in Improving Wheat Crop (Triticum aestivum L.) Performance under Drought Stress

2018 ◽  
Vol 31 (3) ◽  
Author(s):  
Muhammad Zahid ◽  
Naeem Iqbal ◽  
Sohaib Muhammad ◽  
Summiya Faisal ◽  
Wajid Mahboob ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Drought Stress ◽  
Triticum Aestivum L ◽  
Wheat Crop

scholarly journals IMPACT OF FUNGICIDE TREATMENTS APPLIED TO WHEAT CROP (Triticum aestivum L.) ON SEED PATHOGENS

2021 ◽  
Vol 10 (19) ◽  
pp. 58-65
Author(s):  
Alexandra Loredana Suciu ◽  
Cătălin Perneș ◽  
Camelia Giurgiu ◽  
Ana-Maria Păcurar ◽  
Laura Șopterean ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Seed Germination ◽  
Germination Rate ◽  
Triticum Aestivum L ◽  
Wheat Crop ◽  
Health State ◽  
Wheat Cultivars ◽  
Alternaria Sp ◽  
Fusarium Sp

Effectiveness of fungicide treatments during vegetation is recognized as important conditioning factor for the health of wheat crops. Furthermore, quantity and quality of the harvested grain are fundamentally affected by the health state of the crop during vegetation. Aim of this research was to identify the influence exercised by a gradient of fungicide treatments applied to wheat crop on seed mycosis susceptibility after harvest. Seeds belonging to three wheat cultivars (‘Andrada’, ‘Codru’, ‘Exotic’) that received a number of 0-3 fungicide treatments with some commonly used commercial products during vegetation (Credo, Evolus, Acanto Plus), were screened for germination rate, Alternaria sp. and Fusarium sp. incidence. Overall seed germination frequency was 96%, Alternaria sp. frequency was 8.78% and Fusarium sp. frequency was 2.25%. Seeds from the crop that received three fungicide treatments during vegetation displayed 5.38% higher seed germination relative to control, decrease of Alternaria sp. frequency of 60.94% and decrease of Fusarium sp. frequency of 57.10% relative to control. Results suggest a decrease of seed mycotic load associated with increased number of fungicide treatments applied on the crop. Optimization of fungicide application might be possible by studying the influence of phenophase on the effectiveness of the treatments, and these aspects shall receive more attention in the future.

Sign in / Sign up

Export Citation Format

Share Document