Winter Wheat Grain Yield Response to Fungicide Application is Influenced by Cultivar and Rainfall

Wheat is a vital crop in Georgia and in the world. Because of the increase in the rate of population growth, improving the grain yield is the way to meet food demand. Proper crop nutrition plays a vital role in maintaining the world’s food supply. Fertilizer is essential for accomplishing this.One of the most important means for increasing the wheat yield is fertilizer, especially, organic fertilizer. The present research was carried out to study the effects of different doses (150ml, 200ml and 300 ml on ha) of humic organic fertilizer “Ecorost” on yield of winter wheat cultivar “Tbilisuri 15”. The humic liquid fertilizer "Ecorost" is a peat-based organic-mineral fertilizer. The product is active and saturated due to the use of the latest technology and living bacteria found in peat. The field trials were conducted in 2017-2019 at the Experimental Site of Scientific Research Center of Agriculture in Dedopliskharo- arid region (Eastern Georgia).Liquid fertilizer was applied two times: in tillering stage in early spring and two weeks after - in stem elongation stage. Results indicated that the highest wheat grain yield (4t/ha) was achieved when the plants were fertilized with 300 ml on 1 ha ofEcorost. Applications of liquid fertilizer “Ecorost” increased grain yield of winter wheat by 16.2% in comparison with standard nitrogen fertilization. Thus, liquid fertilizer “Ecorost” had a significant effect on wheat grain yield compared to control standard nitrogen fertilizer.

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Nitrogen management impact on winter wheat grain yield and estimated plant nitrogen loss

Agronomy Journal ◽

10.1002/agj2.20107 ◽

2020 ◽

Vol 112 (1) ◽

pp. 564-577 ◽

Cited By ~ 1

Author(s):

Jagmandeep Dhillon ◽

Elizabeth Eickhoff ◽

Lawrence Aula ◽

Peter Omara ◽

Gwen Weymeyer ◽

...

Keyword(s):

Winter Wheat ◽

Grain Yield ◽

Nitrogen Loss ◽

Nitrogen Management ◽

Wheat Grain ◽

Plant Nitrogen

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Nitrogen Carrier and Surfactant Increase Foliar Herbicide Injury in Winter Wheat (Triticum aestivum)

Weed Technology ◽

10.1017/s0890037x00041257 ◽

1997 ◽

Vol 11 (1) ◽

pp. 7-12 ◽

Cited By ~ 10

Author(s):

Phillip W. Stahlman ◽

Randall S. Currie ◽

Mosad A. El-Hamid

Keyword(s):

Triticum Aestivum ◽

Winter Wheat ◽

Grain Yield ◽

Nonionic Surfactant ◽

Ammonium Nitrate ◽

Wheat Grain ◽

Foliar Injury ◽

Spray Solution ◽

Urea Ammonium Nitrate ◽

One Year

A three-year field study in west-central Kansas investigated the effects of combinations of spray carrier, nonionic surfactant (NIS), triasulfuron, and/or 2,4-D on winter wheat foliar injury and grain yield. Herbicides applied in water without NIS caused little or no foliar injury in two of three years. Urea-ammonium nitrate (UAN) at 112 L/ha (40 kg N/ha) alone or as a carrier for herbicides caused moderate to severe foliar injury in all three years. Adding NIS to UAN spray solutions increased foliar injury, especially with the tank mixture of triasulfuron + 2,4-D. Effects of triasulfuron + NIS or 2,4-D applied in UAN were additive. Foliar injury was related inversely to temperature following application. Foliar injury was most evident 4 to 7 d after application and disappeared within 2 to 3 wk. Diluting UAN 50% with water lessened foliar injury in two of three years, especially in the presence of NIS, regardless of whether herbicides were in the spray solution. Treatments did not reduce wheat grain yield in any year despite estimates of up to 53% foliar injury one year.

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Nitrogen Rate and Timing Effects on Winter Wheat Grain Yield, Grain Protein, and Economics

jpa ◽

10.2134/jpa1990.0324 ◽

1990 ◽

Vol 3 (3) ◽

pp. 324-328 ◽

Cited By ~ 26

Author(s):

B. Vaughan ◽

D. G. Westfall ◽

K. A. Barbarick

Keyword(s):

Winter Wheat ◽

Grain Yield ◽

Grain Protein ◽

Wheat Grain ◽

Nitrogen Rate ◽

Timing Effects

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Effects of fertilisers on winter wheat infection caused by Fusarium species

Zbornik Matice srpske za prirodne nauke ◽

10.2298/zmspn0916061k ◽

2009 ◽

pp. 61-66

Author(s):

Vesna Krnjaja ◽

Jelena Levic ◽

Zorica Nesic ◽

Slavica Stankovic

Keyword(s):

Winter Wheat ◽

Grain Yield ◽

Negative Correlation ◽

Fusarium Species ◽

Wheat Grain ◽

Stemphylium Botryosum ◽

Wheat Kernel ◽

Alternaria Species ◽

Wheat Kernels

Effects of fertilisers on the grain yield (t ha-1) and the development of mycobiota, especially of the Fusarium species, in winter wheat kernels were observed. Fertilisers were applied in the following variants: T1 - 30m3 of slurry (pre-sowing treatment) and 25 m3 of slurry (top-dressing), T2 - 22.500 kg of manure (pre-sowing treatment) and 220 kg of urea (top-dressing), T3 - 300 kg of urea (top-dressing) and T4 - the control without application of fertilisers. The average wheat grain yield was the highest in the treatment T2 (6.9 t ha-1), then in T3 (6.3 t ha-1) and T1 (6.2 t ha-1), while the lowest wheat grain yield (4.3 t ha-1) was registered in the control (T4). Fungi of genera Alternaria (88.8-96.3%) and Fusarium (3.7-11.1%) were mainly isolated from all wheat kernel samples collected after harvest (T1-T4). Species of the genus Dreschlera were isolated in treatments T1 (0.3%) and T2 (0.2%). The species Stemphylium botryosum was isolated only in the treatment T1 (0.2%). F. graminearum (3.5-10.8%) was isolated from wheat kernels in all observed treatments, while F. sporotrichioides was isolated in treatments T1 (0.6%), T2 (0.5%) and T3 (0.3%). F. poae (0.3%) and F. subglutinans (0.2%) were isolated in the treatment T2, while F. graminearum was predominantly present in treatments T3 (10.8%), T1 (8.7%) and T2 (7.8%), and in the control T4 (3.5%). The obtained results point out that the application of urea affected the decrease in the intensity of Alternaria species infestation, but it also affected the increase of frequency of Fusarium species, especially F. graminearum, in comparison with the control and other treatments. Negative correlation was registered between the grain yield and the intensity of infestation of Fusarium species (collectively) and F. graminearum (individually).

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Grain yield response of some agronomy practices on contemporary common winter wheat cultivars (Triticum aestivum L.)

Agricultural Science and Technology ◽

10.15547/10.15547/ast.2018.04.058 ◽

2018 ◽

Vol 10 (4) ◽

pp. 308-314

Author(s):

M. Nankova ◽

A. Atanasov

Keyword(s):

Winter Wheat ◽

Grain Yield ◽

Oilseed Rape ◽

Yield Response ◽

Wheat Cultivars ◽

Mineral Fertilization ◽

Previous Crop ◽

Winter Wheat Cultivars ◽

The Mean ◽

Four Levels

Abstract. During 2014–2017, the influence of some main agronomy factors on the size of the resultant agronomic effect from their application to contemporary common winter wheat cultivars was investigated. The study was carried out in the experimental field (Haplic Chernozems soil type) of Dobrudzha Agricultural Institute – General Toshevo. The trial was designed by the split plot method, in four replications, on harvest area of 12m2. Cultivars Sadovo 1, Pryaspa, Kami, Kalina, Kiara, Kossara and Katarjina were grown after winter oilseed rape, spring pea, sunflower and grain maize at four levels of nutrition regime. The nutrition regime was differentiated depending on the previous crop. After spring pea, 30, 60 and 90 kg N/ha were used, and after the rest of the previous crops – 60, 120 and 180 kg N/ha. With the exception of the check variant all fertilizer variants were against background fertilization with 60 kg P2O5/ha and 60 kg K2O/ha. The positive reaction from the complex interaction of the tested agronomy factors was best expressed in 2015 – 2409.2 kg/ha, while during the extremely unfavorable year 2016, the effect was only 628.2 kg/ha. The independent and combined action of the mineral fertilization and the year conditions had determining influence on the size of the agronomic effect (AE). The positive effect from the mineral fertilization on the values of AE was accompanied by slight differentiation between the tested fertilization norms. Within this study, the highest mean value of AE was determined after fertilization with N180P60K60 – 2274.2 kg/ha. The variation in the mean size of AE depending on the type of previous crop was high – from 900.6 kg/ha (pea) to 2031.2 kg/ha (oilseed rape). The applied agronomy practices caused differentiation in the mean values of AE according to the type of cultivar. The cultivars Kiara (1796.1 kg/ha) and Kalina (1704.5 kg/ha) were with the highest size of AE. They exceeded the AE values of the two standard cultivars Sadovo 1 and Pryaspa by 30.26% and 23.62%, respectively. Averaged for the research, it was found that AE was in positive statistically significant correlation with grain yield and its physical properties.

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