No‐till Winter Wheat Production on the Canadian Prairies: Placement of Urea and Ammonium Nitrate Fertilizers

1989 ◽  
Vol 81 (3) ◽  
pp. 518-524 ◽  
Author(s):  
D. B. Fowler ◽  
J. Brydon
1991 ◽  
Vol 71 (1) ◽  
pp. 55-66 ◽  
Author(s):  
D. B. Fowler ◽  
J. Brydon

Winter wheat (Triticum aestivum L.) can be successfully overwintered in most regions of the Canadian prairies if it is sown without prior tillage into standing stubble immediately after harvest of the previous crop. Soil nitrogen (N) is usually deficient in this production system and N fertilization is necessary to optimize yield and maintain minimum quality standards. In the present study, the effect of seed-placed (SP), early-spring broadcast (BC), and SP/BC combinations of ammonium nitrate fertilizer (AN) on winter survival, grain yield and protein production of winter wheat was investigated in 15 field trials conducted over a wide range of soil types and environmental conditions in Saskatchewan. Ammonium nitrate fertilizer placed in a 20-mm-wide band with Norstar winter wheat seed produced average grain yield responses for 34, 67, and 101 kg N ha−1 treatments that were 98, 84, and 71% of comparable BC treatments, respectively. Average grain protein yield responses for the 34, 67, and 101 kg ha−1 SP N treatments were 94, 82, and 74% of comparable BC treatments, respectively. Grain protein concentration responses were similar for comparable BC and SP N treatments. Yield responses for 34 kg N ha−1 SP and BC treatments indicated that AN could be seed-placed at low rates without significantly reducing N-use efficiency. However, significant reductions in winter survival potential in all trials where differential winterkill occurred suggested that even rates as low as 34 kg N ha−1 SP AN should be avoided when cultivars with marginal winter hardiness are utilized. Key words: Winter wheat, no-till, seed-placed N, yield, protein, winter survival


Author(s):  
Y.I. Ilchenko ◽  
◽  
O.A. Biryukova ◽  
A.V. Kucherenko ◽  
A.M. Medvedeva

The article presents the results of a three-year study of the effect of mineral fertilizers on the yield of winter wheat in the No-till system in the soil and climatic conditions of the southern zone of the Rostov region. The combined introduction of ammophos and kalimagnesia before sowing with two fertilizing with ammonium nitrate in the tillering and outlet phases of the tube helps to improve the nutritional regime of the soil and ensures maximum yield of winter wheat.


2018 ◽  
Vol 98 (5) ◽  
pp. 989-989
Author(s):  
B.L. Beres ◽  
R.J. Graf ◽  
R.B. Irvine ◽  
J.T. O’Donovan ◽  
K.N. Harker ◽  
...  

Agronomy ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 204 ◽  
Author(s):  
H. Habibullah ◽  
Kelly Nelson ◽  
Peter Motavalli

Synchrony between soil mineral nitrogen (N) supply and crop N demand is important for optimal plant growth. Excessively wet conditions expose poorly drained soils to an increased potential of N loss and reduced N use efficiency. A two-year experiment with wheat (Triticum aestivum L.) was initiated in 2014 and concluded in 2016 in northeastern Missouri in the United States (USA). The objective of this experiment was to evaluate the effects of nitrapyrin and pronitridine nitrification inhibitors (NI) applied as an early or late-split application timing (40:60%) of 79 kg N ha−1 or 112 kg N ha−1 on winter wheat soil and plant N status, as well as grain yield. Both NIs had no effect (p = 0.3917) on yield, while there was an interaction between year and the urea ammonium nitrate (UAN) rate on grain yield. Yields were similar (3550 kg ha−1 to 3686 kg ha−1) in 2015 between UAN application rates. UAN at 112 kg N ha−1 resulted in a 551 kg ha−1 greater yield than UAN at 79 kg N ha−1 in 2016. Nitrapyrin and pronitridine did not significantly affect soil ammonium or nitrate–N concentrations at depths of 0–15 cm and 16–30 cm compared to the absence of NI over the period of three months after application. Nitrapyrin with UAN at 112 kg N ha−1 had the highest grain test weight. Further testing of these NIs in combination with UAN for winter wheat production is needed under different climatic and environmental conditions to develop comprehensive management recommendations.


2000 ◽  
Vol 80 (4) ◽  
pp. 729-738 ◽  
Author(s):  
D. R. Domitruk ◽  
B. L. Duggan ◽  
D. B. Fowler

Higher water use efficiency provides no-till-seeded winter wheat with an advantage over spring-sown crops in western Canada. However, like all crops, winter wheat (Triticum aestivum L) is subject to large yield losses due to drought. This study was undertaken to identify the effect of weather and crop soil water status on water use, aboveground biomass production and grain yield of no-till winter wheat grown on the Canadian prairies. Five winter wheat cultivars were grown over a 3-yr period at a total of 17 sites scattered across the different climatic zones of Saskatchewan. Both the establishment and expression of grain yield potential were limited by drought in these dryland environments. Early-season moisture was required to set up a high grain yield potential while low ET and high precipitation during grain filling were necessary to secure yield. Rapid growth under cool temperatures during April and early May consumed much of the available water in the top 50-cm of the soil profile and large ET deficits, as a consequence of a continuous decline in available water, characterized drought stress in most trials. While stored soil water at greenup was not sufficient to support a crop, there was growing season rainfall at all trial sites and improvements in water availability led to higher grain yields and an increased range in mean environmental grain yield. Rainfall had its greatest influence on grain yield during tillering, while atmospheric conditions and soil water content were more important from heading to anthesis. Because environmental differences in drought stress were related to the volume and distribution of growing season precipitation, some dryland environments were exposed to intermittent stress while stress was terminal in others. Therefore, to be successful, winter wheat cultivars and management systems for the Canadian prairies must be able to accommodate variable patterns of growing season water availability. Key words: Triticum aestivum L., evapotranspiration, precipitation, water use, biomass, grain yield


2017 ◽  
Vol 1 (92) ◽  
pp. 100-108
Author(s):  
T.S. Vinnichuk ◽  
L.M. Parminskaya ◽  
N.M. Gavrilyuk

In the article the research the results of studies of the phytosanitary state of winter wheat sowing with three soil treatments - plowing (22-24 cm), shallow (10-12 cm) and zero (no - till) with various doses of fertilizers: N56 Р16 К16 , N110-130 Р90 К110 and N145-165 Р135 К150 , without fertilizers (control) for the two predecessors - soybean and rapeseed. The influence of these methods on the development and prevalence of powdery mildew, septoriosis of leaves, root rot of winter wheat, the most common pests in the area of research - cereal flies, wheat thrips and grain sawflies. The identified measures to limit the development and spread of harmful organisms above.


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