MANGANESE NUTRITION OF CEREALS AND FORAGES GROWN IN PRINCE EDWARD ISLAND

1986 ◽  
Vol 66 (1) ◽  
pp. 59-65 ◽  
Author(s):  
UMESH C. GUPTA

Field experiments were conducted in Prince Edward Island to determine the effects of MnSO4 H2O applied as a foliar spray and to the soil and the effects of chelated Mn applied as a foliar spray and limestone applications on Mn concentration and yields of alfalfa (Medicago sativa, L.), timothy (Phleum pratense L.), wheat (Triticum aestivum L.) and oats (Avena sativa L.). The Mn concentration in forages and cereal grain was not affected by method of application. Soil-applied Mn at 5 and 10 kg ha−1 was generally ineffective in increasing tissue Mn concentration. The second cut of alfalfa and timothy contained more Mn than the first cut. Yields of forages and cereals were not affected by Mn applications. Manganese concentrations as low as 29–31 μg g−1 in forages and 22 μg g−1 in cereals were not related to Mn deficiency. In spite of some foliage burning at the 2 kg Mn ha−1 foliar application, no yield reductions were found on any of the crops investigated. Applications of limestone to raise soil pH to 6.6–6.9 decreased tissue Mn in forages and cereal grain. The sharpest decreases occurred in timothy and alfalfa but did not result in low enough tissue Mn to cause Mn deficiency. Key words: Tissue Mn, soil-applied Mn, foliar-applied Mn, soil pH

1989 ◽  
Vol 69 (3) ◽  
pp. 473-479 ◽  
Author(s):  
UMESH C. GUPTA

Field experiments were conducted in Prince Edward Island (P.E.I.) to determine the effects of Zn (zinc sulfate) applied to the soil; applied as a foliar spray; and the effects of chelated Zn applied as a foliar spray on Zn concentration of alfalfa (Medicago sativa L.), ryegrass (Lolium multiflorum Lam.), wheat (Triticum aestivum L.), and barley (Hordeum vulgare L.). Plant tissue Zn levels as low as 12 mg kg−1 in forages, 14 mg kg−1 in cereal boot stage tissue and 19 mg kg−1 in cereal grain were not related to Zn deficiency. Tissue Zn levels as high as 123 mg kg−1 in barley boot stage tissue and 153 mg kg−1 in alfalfa did not result in yield reduction or any Zn toxicity symptoms. Cereal and forage yields were not affected by Zn treatments. In most cases, soil and foliar Zn applications were effective in increasing the Zn concentration in forages and cereals. Should a Zn deficiency be suspected (either from the crop or animal nutrition viewpoint) Zn could be applied to the soil at 20 kg ha−1 or as a foliar spray at 0.5 to 1.0 kg ha−1 to overcome the problem in this region (and in other areas with similar soil and climatic conditions). Key words: Plant Zn, soil and foliar applied Zn, Zn chelate and zinc sulfate, podzol soils


1984 ◽  
Vol 64 (3) ◽  
pp. 403-409 ◽  
Author(s):  
UMESH C. GUPTA ◽  
J. A. MacLEOD

Field experiments were conducted at three locations in Prince Edward Island to determine the effects of various sources of S (Agri-Sul, gypsum, and Urea-Sul) on S concentration of tissue and yields of forages and cereals. Gypsum was effective in increasing the S concentration in plant tissues. Agri-Sul at 10–80 kg S∙ha−1 was generally ineffective in increasing the S concentration of forages and cereals. In the absence of added S (check treatments), the plant tissue S concentrations in alfalfa (Medicago sativa L.) and timothy (Phleum pratense L.) ranged from 0.18 to 0.39 and from 0.14 to 0.27%, respectively. In wheat (Triticum aestivum L.) and barley (Hordeum distichon L.), the S concentrations varied from 0.12 to 0.26 and from 0.13 to 0.20% in the boot stage tissue and grain, respectively, in the check treatments. In general, the S concentration was higher in the boot stage tissue than in the grain. Pea (Pisum sativum L.) seeds and vegetative material from the check treatments contained 0.19–0.24% and 0.17–0.36% S, respectively. Gypsum or Urea-Sul did not increase the yields of forages or cereals. In one instance Agri-Sul slightly increased the alfalfa yield (5–8.5%), but this was not associated with tissue S increases. Plant tissue S levels as low as 0.12–0.18% appeared to be adequate for barley, wheat, timothy, peas, and alfalfa. Key words: Sources of sulfur, tissue S, yields, cereals, forages


2021 ◽  
Vol 42 (2) ◽  
pp. 326-331
Author(s):  
M. Singh ◽  
◽  
K.S. Sandhu ◽  

Aim: To determine the impact of soil and foliar application of ZnSO4.7H2O at late stages of wheat as heading initiation (5% ear formation), 100% heading (complete ear formation) and heading initiation and 100% heading along with recommended dose of fertilizer on growth, yield and quality of zero till wheat. Methodology: The field experiment was conducted on zero till wheat. The treatments consisted of control (no Zn), soil application of 12.5, 25, 37.5, 50 kg ha-1 ZnSO4.7H2O and foliar application of 0.5% Zn as one spray at heading initiation (5% ear formation), one spray at 100% heading (complete ear formation) and two sprays at heading initiation and 100% heading with recommended dose of fertilizer. These treatments were evaluated in RBD with three replications. Results: Soil application of 50, 37.5 and 25 kg Zn ha-1 with two foliar sprays of 0.5% at heading initiation (5% ear formation) and 100% heading (complete ear formation) stages gave significantly higher average grain and straw yield and Zn concentration in grain than other treatments, including control. Interpretation: Enhanced application of Zn as soil and foliar application ameliorates soil Zn deficiency and increases protein content in grains, which might influence the quality and yield of zero tilled wheat. Key words: Foliar spray, Grain yield, Wheat, Zinc


1999 ◽  
Vol 79 (1) ◽  
pp. 71-83 ◽  
Author(s):  
W. J. Bullied ◽  
M. H. Entz ◽  
S. R. Smith Jr.

Crop rotations involving perennial alfalfa (Medicago sativa L.) present the unique problem of terminating the alfalfa stand. Intensive tillage currently used to terminate alfalfa increases the risk of soil erosion and reduces many of the rotational benefits from alfalfa. Inadequate alfalfa termination results in severe competition to the following crop by surviving alfalfa plants. Field experiments were conducted in Manitoba between 1991 and 1993 with the following objectives: 1) to investigate no-till vs. tillage management systems for successful alfalfa termination, 2) to compare fall vs. spring alfalfa termination, 3) to compare the performance of barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) seeded into alfalfa residue, and 4) to determine the relationship between alfalfa escapes and grain yield. Fall termination produced higher grain yields than spring termination, however this advantage was only achieved with the better termination treatments capable of lowering alfalfa regrowth below a critical level. The best herbicide treatment tested here was glyphosate at 1.78 kg a.i. ha−1. Successful treatments would have to reduce residual alfalfa basal crown area (a measure of alfalfa regrowth potential) after cereal grain harvest to below 2%. Alfalfa escapes reduced yield of following wheat and barley crops similarly (P > 0.05). When alfalfa termination treatment method allowed some regrowth, in-crop herbicide treatments significantly reduced alfalfa basal crown area. Results of this study indicate that it is feasible to terminate alfalfa with herbicides in the absence of tillage, however an overall cropping strategy, including adequate consideration of weeds present in alfalfa fields at time of termination, must be considered. Key words: Herbicides, competition, recropping, no-till, alfalfa regrowth, soil conservation, sustainable cropping


Agronomy ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 250 ◽  
Author(s):  
Etienne Niyigaba ◽  
Angelique Twizerimana ◽  
Innocent Mugenzi ◽  
Wansim Aboubakar Ngnadong ◽  
Yu Ping Ye ◽  
...  

Wheat (Triticum aestivum L.) is one of the main foods globally. Nutrition problems associated with Zinc and Iron deficiency affect more than two billion individuals. Biofortification is a strategy believed to be sustainable, economical and easily implemented. This study evaluated the effect of combined Zn and Fe applied as foliar fertilizer to winter wheat on grain yield, quality, Zn and Fe concentration in the grains. Results showed that treatments containing high Fe increased the yield. Grain crude fat content remained unaffected. Crude fiber was enhanced up to three-fold by 60% Zn + 40% Fe5.5 (5.5 kg ha−1 of 60% Zn + 40% Fe). Moreover, 80% Zn + 20% Fe5.5 (5.5 kg ha−1 of 80% Zn + 20% Fe) was the best combination for increasing crude protein. Zinc applied alone enhanced Zn concentration in grain. In addition, Fe was slightly improved by an application of Zn and Fe in the first year, but a greater increase was observed in the second year, where 100% Fe13 (13 kg ha−1 of 100% Fe) was the best in improving Fe in grain. Foliar application of Zn and Fe is a practical approach to increase Zn and Fe concentration, and to improve the quality of wheat grains.


1991 ◽  
Vol 71 (2) ◽  
pp. 197-202 ◽  
Author(s):  
Umesh C. Gupta

Field studies were conducted in Prince Edward Island (PEI) on the Fe nutrition of cereals and forages and to determine the relationship between plant Fe and soil pH. The Fe concentration in barley (Hordeum vulgare L.) and oats (Avena sativa L.) boot stage tissue (BST) and grain ranged from 35 to 65 and from 19 to 42 mg kg−1, respectively, in the control and from 38 to 57 and from 22 to 45 mg kg−1, respectively, in the soil applied Fe treatments. In the foliar applied Fe treatments, the cereal BST contained as much as 121 mg Fe kg−1 in the FeSO4.7H2O treatments and up to 86 mg kg−1 in the chelate-Fe treatment, but neither of these two sources increased Fe concentration in the grain. In the first cut of forages in the foliar treatments, the Fe was as high as 131 mg Fe kg−1, but no differences were generally found between the control and Fe treatments in the second cut. Over the soil pH ranges of 4.5–6.9, no consistency was found in the correlation coefficient (r) values between plant Fe and soil pH. In spite of the Fe concentrations as low as 19 mg kg−1 in cereal grain and 23 mg kg−1 in forages in the control treatments, no yield response to added Fe was found. However, the Fe concentrations as found in this study would be considered deficient for livestock and mineral supplements of Fe to the feeds may be desirable. Key words: Cereals, forages, soil pH, plant iron, acid soils


1990 ◽  
Vol 70 (3) ◽  
pp. 605-609 ◽  
Author(s):  
J. A. IVANY ◽  
H. G. NASS ◽  
J. B. SANDERSON

In field experiments at Charlottetown, Prince Edward Island, herbicides were applied in the fall or spring on winter wheat (Triticum aestivum L.) to determine effect on yield. Application of 2,4-D or the mixture 2,4-D/mecoprop/dicamba in the fall gave significantly lower yields than when spring-applied on the cultivar Lennox. The herbicides MCPA, bromoxynil, dicamba, mecoprop, chlorsulfuron, MCPA/dicamba, and MCPA/bromoxynil had no adverse effect on yield of Lennox at either time of application. A further study on the cultivars Lennox, F29-76, and Borden using the herbicides MCPA, bromoxynil, MCPA/dicamba, chlorsulfuron, and dicamba showed no detrimental effects on 1000 kernel weight, or percent winter survival from fall or spring application. Yield losses were noted for spring application of dicamba but not for MCPA/dicamba and all cultivars responded similarly to all herbicide treatments.Key words: Wheat (winter) cultivars, fall versus spring application, 2,4-D, MCPA, dicamba, bromoxynil, chlorsulfuron


Author(s):  
Hammad Nawaf Farhan ◽  
Saifuldeen Abdulrazzaq Salim ◽  
Abdulkarem A. Meklef Alalwany ◽  
Basheer Hamad Abdullah ◽  
Heshim Mohammed Aobad

Two field experiments were conducted under field conditions under a sprinkler irrigation system in the West desert of Iraq, Al-Qaim Area, 400 km west of Baghdad. Underground water was used as a source of irrigation water to study the effect of different rates and different times of boron application on wheat cv. Ibaa99. RCBD with five treatments and three replications was used in this study. Boron dose was 2 kg/ha for soil application method and 0.30 kg/ha for foliar application method. Boron treatments were: 0 (control T1), 2 kg B ha-1 at sowing time (T2), 2 kg B ha-1 at 30 days after sowing (T3), 0.3 kg B ha-1 foliar application at 60 days after sowing (T4) and 0.3 kg B ha-1 for foliar application at 90 days after sowing (T5). Most boron treatments gave a significant increase as compared with control in morphological, physiological and productivity characters of wheat crop. The results revealed that B application treatment at 30 days after sowing time increased significantly the 1000 grains weight (17.6%) while T5 treatment increased significantly the chlorophyll content (12.41%) over control. In most cases, B application treatment at 60 days after sowing time showed the best results and increased significantly the plant height (5.24%), leaf area (9.18%), number of grains spike-1 (30.9 %), number of spike m-2 (18.8%), spike length (65.6%), Grains yield (34.6%) over control. There was evidence that the best dose of boron was 0.3 kg B ha-1 and the best time of B application to the foliage was at 60 days after sowing.


2015 ◽  
Vol 61 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Ibrahim M. El-Metwally ◽  
Osama A.M. Ali ◽  
Magdi T. Abdelhamid

Abstract Two field experiments were carried out in two successive seasons to examine the effect of weed management on wheat crop under saline condition and how herbicides can interact with foliar application with indole-3-acetic acid (IAA) to improve weed suppression and enhance crop growth and productivity under salinity stress. Clodinafop-propargyl was the best option to attain acceptable grassy weeds control. Increasing IAA from 0 up to 150 ppm significantly increased number and dry weight of grassy weeds in wheat after 80 days from sowing. Application of IAA at 150 ppm recorded the highest number and dry weight of weeds. Clodinafop-propargyl produced the lowest values of number and dry weight of weeds as well as nutrients uptake by weeds when water spraying was added. While application of IAA at 150 ppm gave the maximum values of flag leaf area, SPAD meter values, number of spike/m2, spike length, number of spikelets/spike, grains number/spike, grains weight/spike, as well as grain, straw, and total crude protein, phosphorus and potassium percentages when clodinafop-propargyl treatment was applied. It could be concluded that using IAA at 150 ppm resulted in enhancement of growth and productivity of wheat crop when integrated with clodinafop-propargyl treatment under salinity condition.


Author(s):  
Lidija VOJEVODA ◽  
Anita OSVALDE ◽  
Gunta ČEKSTERE ◽  
Andis KARLSONS

Investigations on the potential beneficial effect of humic substances on crop plant cultivation under extremely diverse soil and climatic conditions is of global character, thereby knowledge obtained on the basis of local investigations are of great importance world-wide. The aim of the research was to evaluate the effect of different application methods (seed tuber treatment and foliar application) of commercially-produced peat and vermicompost extracts on nutrient uptake in tubers and yield of potato (Solanum tuberosum L.) using field experiments in organic farming system with potato variety ‘Borodjanskij Rozovij’. The tested extracts from the organic products included: peat extract (K45) and vermicompost extract (B45) obtained at +45°C by cavitation. The investigation was carried out at Stende Research Centre (Institute of Agro-resources and Economics) from 2011 to 2012. The chemical composition (N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu, Mo, B) of potato tubers was determined. The application of organic extract from vermicompost had a stimulating effect on mineral nutrient as N, P, K, Mg, and S accumulation in potato tubers, but 50% of cases showed reduction in Ca and Cu content that could influence the storage of tubers. The use of peat extract was significantly effective when the tubers were treated before planting. On average, tuber treatment and foliar spray with organic extracts contributed to 10% of tuber yield increase.


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