scholarly journals Competition between a sugar beet crop and populations of Chenopodium album L. and Stellaria media L.

1987 ◽  
Vol 35 (4) ◽  
pp. 525-528
Author(s):  
M.J. Kropff ◽  
W. Joenje ◽  
L. Bastiaans ◽  
B. Habekotte ◽  
H. van Oene ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Sandy Loam ◽  
Chenopodium Album ◽  
Field Trials ◽  
Stellaria Media ◽  
Sugar Beet Crop

In field trials on sandy loam, 5.5 C. album plants/msuperscript 2 and 11 clumps S. media/msuperscript 2 reduced sugarbeet DM by 37 and 21%, resp. Although S. media populations had a much higher LAI, C. album proved the stronger competitor and grew taller than the crop. (Abstract retrieved from CAB Abstracts by CABI’s permission)

THE IMPACT OF MINERAL FERTILIZERS ON THE BIOLOGICAL YIELD OF SUGAR BEET CROP (BETA VULGARIS L. VAR. SACCHARIFERA)

2018 ◽  
Vol 28 (4) ◽  
pp. 1281-1284
Author(s):  
Petar Petrov ◽  
Bojan Mitrovski
Keyword(s):  
Sugar Beet ◽  
Field Trials ◽  
Mineral Fertilizers ◽  
Qualitative Properties ◽  
New Production ◽  
Economic Significance ◽  
Random Block ◽  
Biological Yield ◽  
Sugar Beet Crop ◽  
The Impact

Due to the great economic significance of the sugar beet, the new production trends are aimed at improving the quantitative and qualitative properties and one of the basic agro technical measures that is directly dependent on the yield and quality of the turnip is the properly conducted plant nutrition. Exporting high quantities of nutrients from the soil, the sugar beet requires application of advanced agro-technology, primarily application of adequate and controlled nutrition and irrigation. Application of this measure, in combination with soil processing, has sustained influence over the following cultures in the crop rotation in terms of nutrients regiment and fight against weeds.In order to determine the effects of mineral fertilizers on sugar beet, field experiment was conducted on fluvisol soil. The experiment is set according to a random block system, following the standard methods of agricultural chemistry for conducting field trials. The experiment includes eight variants, as follows: 1. Control (non-fertilized), 2. NP, 3. NK, 4. PK, 5. NPK, 6. N2PK, 7. N2P2K, 8. N3PK.In the phase of technological maturity of sugar beet, collection of the vegetative material and measurement of the height of the biological yield of the turnips was carried out. Based on the survey results, it can be concluded that the variant N2P2K has achieved the highest yield of swollen roots, i.e. 69.330 kg/ha. The highest yield of leafy greens was achieved in the variant N3PK, i.e. 41.920 kg/ha, which indicates the fact that nitrogen has direct influence over the vegetation mass of sugar beet.

scholarly journals Residue Kinetics of Ethofumesate in Texturally Diverse Soils of Sugar Beet Crop under Field Conditions

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Shishir Tandon ◽  
Suman Lata Pal
Keyword(s):  
Sugar Beet ◽  
Sandy Loam ◽  
Animal Health ◽  
Field Conditions ◽  
Silty Clay ◽  
First Order Kinetics ◽  
Quantitation Limit ◽  
Long Duration ◽  
Loam Soil ◽  
Sugar Beet Crop

Indiscriminate use of pesticides and growing awareness of environmental and health problems had led to monitoring their residues in soil and crops. Ethofumesate is one of the widely used herbicides for controlling weeds in sugar beet. Dissipation kinetics and terminal residues of ethofumesate were investigated in two diverse soils under subtropical field conditions. Ethofumesate dissipated slowly after application and follows biphasic first-order kinetics in soils. The average half-life for initial and later phases in sandy loam soil, respectively, was 14.54 and 20.42 and 51.83 and 65.21 days, while for silty clay loam, it was 10.09 and 13.00 and 71.42 and 73.10 days, respectively. Recoveries in soil, leaves, and beetroot ranged from 78.15 to 88.05, 77.01 to 88.58, and 76.25 to 84.50%, respectively. The quantitation limit for soil, roots, and leaves was 0.002 μg g−1. At harvest, no residues were detected in soils, leaves, and sugar beetroots. Residues were below the maximum residue limits in sugar beetroots and leaves as set by EU (0.2 ppm). Ethofumesate is safe from weed control and environmental aspects as it does not persist for a long duration in soils and does not appear to pose any adverse effect on human/animal health under subtropical field conditions.

The effects of time of weed removal on growth and yield of sugar beet

1979 ◽  
Vol 93 (3) ◽  
pp. 693-709 ◽  
Author(s):  
R. K. Scott ◽  
S. J. Wilcockson ◽  
F. R. Moisey
Keyword(s):  
Sugar Beet ◽  
Field Experiments ◽  
Yield Loss ◽  
Crop Yields ◽  
Chenopodium Album ◽  
Growth And Yield ◽  
Stellaria Media ◽  
Leaf Production ◽  
Irreversible Effects ◽  
Hand Weeding

SUMMARYField experiments at Sutton Bonington between 1970 and 1974 tested how crop yields were affected by hand weeding at different stages in the life of early- and latesown crops. Losses where weeds were never controlled ranged from 95% where tallgrowingChenopodium albumL. predominated to 50% whenStellaria media(L.) Vill. andTripleurospermum maritimumL.) Koch ssp.inodorumHyl ex. Vaarama (T.inodorum) were most involved.In five of the seven crops examined the latest date (X) at which weeding had to commence to prevent irreversible effects on growth and yield and the earliest date at which weeding could cease without yield loss (Y) coincided. For late March/early April sowings this occurred 6 weeks after crop emergence, while for late April/early May sowings in which events were more rapid the same stage was reached 4 weeks after emergence. For an early-sown crop in 1973, when rainfall was frequent and heavy andC. albumprolific, X preceded Y with an interval of 4 weeks between the two dates (4–8 weeks after crop emergence, mid-May to mid-June). In complete contrast for a late-sown crop in 1974, when the weather was exceptionally dry andC. albumvirtually absent, Y preceded X and a single weeding at any time between 2 and 8 weeks after emergence would have prevented yield loss.Sugar beet had generally reached the late singling stage (4–6 true leaves) by the time weeding must have commenced. During the next 6 weeks, final yield was depressed by 120–150kg/ha (1·;5%) with each day that weeds were allowed to remain. However, leaf production continued throughout the season and the crop was capable of recovering from early checks caused by weed competition. It proved possible for crops whose weights were depressed by 25–30% when first weeded to recover completely by harvest.

scholarly journals Weed suppression and early sugar beet development under different cover crop mulches

2017 ◽  
Vol 53 (No. 3) ◽  
pp. 187-193 ◽  
Author(s):  
Kunz Christoph ◽  
Sturm Dominic J ◽  
Sökefeld Markus ◽  
Gerhards Roland
Keyword(s):  
Sugar Beet ◽  
Cover Crops ◽  
Cover Crop ◽  
Raphanus Sativus ◽  
Field Experiments ◽  
Chenopodium Album ◽  
Sinapis Alba ◽  
Weed Suppression ◽  
Vicia Sativa ◽  
Stellaria Media

Field experiments were conducted at two locations in 2014–2015 and 2015–2016 to investigate the weed suppressive ability of cover crop mulches in sugar beets. Three cover crops and two cover crop mixtures were tested in all four experiments. Weed densities ranged from 2 up to 210 plants/m<sup>2</sup> in Chenopodium album L. and Stellaria media (L.) Vill. as predominant species. Sinapis alba grew significantly faster than Vicia sativa, Raphanus sativus var. niger, and both cover crop mixtures. Sinapis alba, Vicia sativa, Raphanus sativus var. niger reduced weed density by 57, 22, and 15% across all locations, respectively. A mixture of seven different cover crops reduced weed emergence by 64% compared to the control plot without cover crop mulch. Early sugar beet growth was enhanced by all mulch treatments in 2015 and decelerated in 2016.

Studies in soil cultivation: XI. The effect of inter-tillage on the sugar-beet crop

1942 ◽  
Vol 32 (3) ◽  
pp. 330-337 ◽  
Author(s):  
E. W. Russell ◽  
B. A. Keen ◽  
H. H. Mann
Keyword(s):  
Sugar Beet ◽  
Soil Nutrients ◽  
Sandy Loam ◽  
Short Supply ◽  
Heavy Clay ◽  
Weed Infestation ◽  
Effect On Yield ◽  
Hand Weeding ◽  
The One ◽  
Sugar Beet Crop

Experiments on the effect of inter-row cultivation of sugar beet, carried out in the three years 1939–41 on a sandy loam, led to the following results:1. If the soil nutrients are in short supply hoeing or hand-weeding increases the yield of the beet, provided these operations are carried out before or shortly after singling.2. Hoeing is more effective than hand-weeding, but it cannot yet be said with certainty whether this is due entirely to more efficient weed destruction, or whether there is some additional effect, such as mulching.3. If adequate quantities of soil nutrients are present, inter-row cultivation has little effect on yield, and the crop can tolerate a considerable weed infestation without any effect on yield.The results for sugar beet on the heavy clay-with-flints soil at Rothamsted show:1. Additional hoeings after singling, above a modest minimum, have either no effect on yield or else depress it.2. On the one occasion when pre-singling cultivations were given, the yield was increased.3. In contrast with the Woburn results the effect of cultivation does not vary with, the level of manuring.

WIREWORMS AND THE SUGAR-BEET CROP: FIELD TRIALS AND OBSERVATIONS

1947 ◽  
Vol 34 (4) ◽  
pp. 562-574 ◽  
Author(s):  
D. PRICE JONES ◽  
F. G. W. JONES
Keyword(s):  
Sugar Beet ◽  
Field Trials ◽  
Crop Field ◽  
Sugar Beet Crop

scholarly journals Sugar beet (Beta vulgaris L.) storage quality in large outdoor piles is impacted by pile management but not by nitrogen fertilizer or cultivar

2012 ◽  
Vol 92 (1) ◽  
pp. 129-139 ◽  
Author(s):  
Laura L. Van Eerd ◽  
Katelyn A. Congreves ◽  
John W. Zandstra
Keyword(s):  
Sugar Beet ◽  
Nitrogen Fertilizer ◽  
Significant Proportion ◽  
Field Trials ◽  
N Fertilization ◽  
Storage Quality ◽  
Sugar Beets ◽  
Physical Constraints ◽  
Removal Method ◽  
Sugar Beet Crop

Van Eerd, L. L., Congreves, K. A. and Zandstra, J. W. 2012. Sugar beet (Beta vulgarisL.) storage quality in large outdoor piles is impacted by pile management but not by nitrogen fertilizer or cultivar. Can. J. Plant Sci. 92: 129–139. Even though storage results in lower sucrose recovery from sugar beets, physical constraints dictate that a significant proportion of the sugar beet crop can be stored up to 120 d before processing. From 2006 to 2010, N fertilization (0–220 kg N ha–1), sugar beet cultivar, and pile management method were independently evaluated to determine their effects on sugar beet storability in large outdoor piles. At harvest, five representative sugar beet samples from the N and cultivar field trials were placed in a large outdoor storage pile. Sugar beet quality assessments were taken at harvest and three times over the storage season. On the last retrieval date only, sugar beet samples were retrieved from piles managed via the length- vs. end-removal method. Although there were differences among N treatments and cultivars in sugar beet quality at harvest, there were no storage date by N treatment or storage date by cultivar interactions for any parameters measured indicating that N fertilization or cultivar did not influence the ability to maintain sugar beet quality in large outdoor piles. The length-removal method of pile management had better quality sugar beets compared with the standard end-removal method. Hence, sugar beet producers do not need to modify production practices to optimize storability, but sugar beet processors can improve sucrose recovery by removing sugar beets lengthwise along both sides of large piles as opposed to the standard end-removal method.

A comparison of management regimes for one-year rotational set-aside within a sequence of winter wheat crops, and of growing wheat without interruption. 2. Effects on vegetation and weed control

1998 ◽  
Vol 130 (4) ◽  
pp. 389-397 ◽  
Author(s):  
I. F. SHIELD ◽  
E. T. G. BACON
Keyword(s):  
Winter Wheat ◽  
Weed Control ◽  
Sandy Loam ◽  
Low Cost ◽  
Chenopodium Album ◽  
Italian Ryegrass ◽  
Wheat Crop ◽  
Stellaria Media ◽  
Management Regimes ◽  
One Year

Six management regimes for 1-year set-aside were compared with continuous winter wheat for their effects on weed control in two following test crops of winter wheat. The experiment was repeated in each of three years (1989–91) on predominantly sandy loam soils in eastern England. The weed flora was dominated by Poa spp., Stellaria media, Matricaria spp., Chenopodium album and volunteer crops, predominantly wheat.Managing set-aside by allowing natural regeneration and cutting it 2–4 times during the growing season resulted in fewest weeds in the following wheat crop. It was also a low cost option. Winter wheat, despite the application of herbicides, was not as effective in minimizing weeds in the winter wheat test crops as the best set-aside options.An Italian ryegrass cover crop set seed despite being cut 2–4 times per year. The only serious weed infestation arising in following wheat crops was from volunteer ryegrass in the second wheat following set-aside. The effects of management in the set-aside year were generally greater in the second of the following wheats than in the first.

Efficacy of some herbicides in wheat crop

Pesticidi ◽  
2002 ◽  
Vol 17 (1-2) ◽  
pp. 23-29
Author(s):  
Ljiljana Radivojevic ◽  
Radmila Stankovic-Kalezic ◽  
M. Budimir
Keyword(s):  
Winter Wheat ◽  
Chenopodium Album ◽  
Field Trials ◽  
Wheat Crop ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Stellaria Media ◽  
Galium Aparine ◽  
Winter Wheat Crop ◽  
Fumaria Officinalis

In 2001 and 2002 field trials were carried out to evaluate efficacy of eight herbicides, alone or in the combinations, in winter wheat crop, in the Juzni Banat region. The next herbicides were examined: 2,4-D, Fluroksypyr Tribenuronmethyl, 2,4-D+Florasulam, Bentazon+Dicamba, Triasulfuron+Dicamba lodosulphuron-methylodium+Amidosulphuron Herbicides were applied after tillering of wheat was over. More frequent weed species were: Anthemis arvensis, Chenopodium album, Cirsium arvense, Convolvulus arvensis Delphinium consolida, Fumaria officinalis, Galium aparine, Lamium purpureum Polygonum convolvulus, Ranunculus arvensis, Sinapis arvensis, Stellaria media, Veronica polita i Viola tricolor. The most sensitive weed species to all herbicides were S. arvensis and Ch. album. The most tolerant was G. aparine (exept to fluroxipyr). The other species were less sensitive and herbicides eficacy were good or satisfactory, exept to V. polita and D. consolida. These results sugest that all applied herbicides could be successful in broad leaves weed control in the winter wheat crop in the Juzni Banat region.

Efficacy of foramsulfuron + thiencarbazone-methyl towards different development stages of weed species in sugar beet cultivation

2016 ◽  
pp. 436-445 ◽  
Author(s):  
Moritz Jasper Wendt ◽  
Martin Wegener ◽  
Erwin Ladewig ◽  
Bernward Märländer
Keyword(s):  
Control System ◽  
Sugar Beet ◽  
Weed Control ◽  
Comprehensive Evaluation ◽  
Chenopodium Album ◽  
Weather Conditions ◽  
Field Trials ◽  
Weed Species ◽  
Development Stages ◽  
Cotyledon Stage

The currently available weed control system in sugar beet cultivation has low flexibility due to the necessity of applications at the cotyledon stage of the weeds. The aim of the present study was to evaluate a new herbicide providing more flexibility in terms of application time. In 2013 and 2014, efficacy of an ALS-inhibiting herbicide (foramsulfuron + thiencarbazone-methyl) was evaluated in six field trials in Germany. Sugar beet varieties not sensitive to ALS-inhibiting herbicides are currently in the breeding process. The herbicide was tested on five weed species in different development stages (later than cotyledon stage). In the trials, only weeds but no sugar beet were sown. The herbicide was applied with three dosages at five development stages of the weeds. Efficacy towards Brassica napusL. and Galium aparineL. was nearly 100%. Efficacy towards Chenopodium albumL., Matricaria chamomillaL. and Polygonum convolvulusL. was reduced due to unfavorable weather conditions and with decreasing dosages and increasing development stages. Efficacy was lowest in case of Chenopodium album being close to 95% at BBCH 14 and 16 with 0.50L/ha and 1.00L/ha, respectively. It was thus concluded that the herbicide can be applied later than at cotyledon stage. This implies more flexibility of application timing than current herbicides. To develop a comprehensive evaluation of the weed control system, further studies regarding selectivity, duration of efficacy and resistance risks are necessary.

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