Strube Test harvesting

Test harvestings 2022

We will start the test harvestings in 2022 on August 1st. In the regions Rheinland and Söllingen we will begin harvesting on August 15th. Until the middle/end of October we will harvest every two weeks in the regions. The results can be find here after the sugar beets analysis a few days later.
 
For more than 50 years Strube is carrying out sample harvests in sugar beet fields every two weeks from the end of July to the end of october in Germany. The results of our test harvestings can be found in the tables below, beginning in the first week of august.

News and current situation 2022

As every year we made a harvest in advance on several beet fields in the Soester Börde (area between the city of Soest and the sugarfactory Lage) on July 13th. We only harvest and weigh the roots to get the root yield. Here are the results ...

Test-harvestings on August 1st in the regions of Zeitz and Ochsenfurt failed because of technical problems. On August 15th we are going to harvest in all regions.

19.08.2022 | After a good youth development, drought and persitant heat are taking their tribute. Due to the dryness, the beets have an extremely high sugar content, with below-average to normal beet yields.

05.09.2022 | The "Wirtschaftliche Vereinigung Zucker" (WVZ) estimates for the campaign 2022/23 in Germany an average root yield of 70,1 tons per hectar, the forecast for the sugar content will be 18,1 percent. The long lasting dryness and heat reduces in many places the customary growth of the sugar beet yields in the late summer time.

12. 09. 2022 | There ist great variation in the sugar yields between our testing sites in mid-September. In the Ochsenfurt region it was historically dry in the summer months, which is reflected in the results. However, the regions of Straubing, Rhineland, Söllingen and Zeitz are gratifyingly up in sugar yields at the beginning of the harvest and slightly above the 5- and 3-year average.

26. 09. 2022 | Sugar yields at our test harvesting sites are well below average (Ochsenfurt, Wetterau) to satisfactory. We are seeing increases in beet yields at some of our testing-sites that have never been seen before in the history of 50 years of our test harvestings.

10.10.2022 | The rainiest September since 2001 brought drought relief in almost all regions. This is reflected by a huge increase in sugar beet yields in the Söllingen region and in the Rhineland. In the Wetterau, Ochsenfurt and Straubing regions, we hereby end our trial grubbing this year.

Weather 2022

Precipitation in the regions of the…

Chart: Thermopluviograph for the Region…

Chart: Thermopluviograph for the Region…

Chart: Thermopluviograph for the region…

Chart: Thermopluviograph for the region…

Chart: Thermopluviograph for the Region…

Results of our test harvestings

region Rheinland (Northwest Germany) October 23th 2023

6 fields

  • soil type luvisol (para brown earth)
  • ground points (valuation index of fields) 40 - 90
  • plant density 95.000 to 110.000 plants per hectare
  • date of sowing from March 18th until April 8th 2022

  

Precipitation in mm 202320222021202020192018ø 2013 - 2022
1.10. - 31.03. 314293361449342322327
01.04. - 08.10. 521300438218288182322
09.10. - 23.10. 5516221431022
01.01. - 24.10. 765467682467523333512

 

  SBY SCWSC SYWSY KNaAmNSML leaf weight
  t/ha %% t/hat/ha mmol/1000 g sugar beet% %
                
14.08.2023 63,2 14,612,7 9,218,03 38,74,811,01,27 -
28.08.2023 76,8 14,913,0 11,409,99 36,95,010,91,24 -
11.09.2023 82,4 16,414,5 13,5011,91 36,15,414,91,34 -
25.09.2023 92,6 16,414,6 15,2113,52 32,85,311,91,22 -
09.10.2023 94,5 17,515,7 16,5314,84 31,14,312,01,19 -
23.10.2023 100,7 17,515,6 17,6415,73 32,44,815,51,30  
                
24.10.2022 97,1 17,815,9 17,2415,43 31,44,914,81,27 -
25.10.2021 95,7 19,017,2 18,1616,47 30,43,711,41,16 -
19.10.2020 101,1 18,316,4 18,4516,58 30,34,314,91,25 -
21.10.2019 82,8 18,016,0 14,8813,25 30,94,119,51,37 -
22.10.2018 77,4 19,417,3 15,0013,40 34,94,321,61,47 -
ø 2018-2022 90,8 18,516,6 16,7715,04 31,64,216,41,30 -
23.10.2023 rel. 111 9594 105105 10311394100 

-

Caption: SBY - sugar beet yield, SC - sugar content, WSC - white sugar content, SY - sugar yield, WSY - white sugar yield, K - potassium, Na - sodium, AmN - amino-N-content, SML - standard molasses loss, leaf weight - in percent based on the beet yield

region Söllingen (Helmstedt/Wolfenbüttel) October 23th

5 fields

  • soil type luvisol (para brown earth)
  • ground points (valuation index of fields) 75 - 95
  • plant density 100.000 to 110.000 plants per hectare
  • date of sowing  10. bis 24. April 2023

  

Precipitation in mm 202320222021202020192018ø 2013-2022
01.10. - 31.03. 262209228293233281257
01.04. - 08.10. 342190298192294137304
09.10. - 23.10. 5919202918023
01.01. - 23.10. 545321439387446247451

 

  SBY SCWSC SYWSY KNaAmNSML leaf weight
  t/ha %% t/hat/ha mmol/1000 g sugar beet% %
14.08.2023 54,3 14,412,5 7,826,80 38,810,47,91,26 81
28.08.2023 63,4 14,512,7 9,218,05 33,88,410,01,22 86
11.09.2023 72,7 16,614,6 12,0910,61 33,68,118,61,43 68
25.09.2023 81,8 17,315,5 14,1312,67 31,06,910,11,18 70
09.10.2023 84,2 18,016,3 15,1813,70 31,75,99,01,15 60
23.10.2023 90,6 17,715,8 16,0514,36 31,27,113,21,26 44
                
24.10.2022 92,4 19,417,6 17,9716,29 31,04,113,21,22 22
25.10.2021 94,5 18,917,0 17,8116,04 31,04,815,41,28 47
19.10.2020 97,3 18,616,7 18,1116,29 33,95,313,51,27 36
21.10.2019 97,6 19,417,6 18,9517,21 31,63,311,71,18 29
22.10.2018 75,1 21,419,4 16,1014,61 34,93,018,71,39 30
ø 2018-2023 91,4 19,617,7 17,8716,16 32,54,114,51,27 33
23.10.2023 rel. 99 9190 9089 961739199 134

* average of three fields

Caption: SBY - sugar beet yield, SC - sugar content, WSC - white sugar content, SY - sugar yield, WSY - white sugar yield, K - potassium, Na - sodium, AmN - amino-N-content, SML - standard molasses loss, leaf weight - in percent based on the beet yield

Region Zeitz (Middle and East of Thüringen) October 10th

3 Fields

  • Soil type Parabrown earth 
  • Ground points (valuation index for the soil) 63 - 85
  • Plant density 40.000 and 80.000 Plants/Hectar
  • Sowing date 
      
Precipitation in mm 202220212020201920182017ø 2012 - 2021
01.10. - 31.03. 217233224210230199209
01.04. - 25.09.. 178417262213184349304
26.09. - 10.10 5015022281223
01.01. - 10.10. 341567380335305450426

 

  SBR SCWSC SYWSY KNaAmNSML Leaf weight
  t/ha %% t/hat/ha mmol/1000 g Rübe% % o.R.
01.08.2022 test harvesting dropped for technical reasons
15.08.2022 56,4 19,517,2 11,09,70 47,95,324,21,70 61
29.08.2022 71,7 15,713,7 11,299,80 40,63,419,41,48 53
12.09.2022 80,9 17,515,5 14,1512,53 40,42,517,11,40 52
26.09.2022 partially harvested, so it is not possible to calculate an representative average
10.10.2022 partially harvested, so it is not possible to calculate an representative average
                
11.10.2021 99,9 17,215,5 17,1815,52 30,23,47,81,07 65
05.10.2020 71,6 19,217,2 13,7812,30 45,54,815,61,46 53
07.10.2019 55,6 19,717,9 10,989,97 32,82,612,61,21 32
Ø 2019 - 2021 75,7 18,716,9 14,1812,78 36,23,612,01,25 53
10.10.2022 rel. - -- -- ---- -

Caption: SBY - sugar beet yield, SC - sugar content, WSC - white sugar content, SY - sugar yield, WSY - white sugar yield, K - potassium, Na - sodium, AmN - amino-N-content, SML - standard molasses loss, leaf weight - in percent based on the beet yield

Region Wetterau (Mittelhessen) October 10th

3 Fields

  • Soil type: Parabraunerde 
  • Ground points: (valuation index for the soil) 70 - 80
  • Plant density: 75.000 – 105.000 Pflanzen je Hektar
  • Sowing date: 24. bis 27. März 2022

  

Precipitation in mm 202220212020201920182017ø 2012 - 2021
01.10. - 31.03. 268257382234316

210

267
01.04.-25.09. 244378157312246513317
26.09.-10.10. 201506532323
01.01.-10.10. 423569350502398618483

 
 

  SBY SCWSC SYWSY K Na  AmN SML Leafweight
  t/ha %% t/hat/ha mmol/1000 g R.% % o.R.
01.08.2022 42,2 19,517,6 8,247,44 32,93,115,51,28 64
15.08.2022 48,3 20,718,8 9,989,10 33,42,513,31,23 51
29.08.2022 58,6 21,019,2 12,3011,24 30,42,713,51,20 45
12.09.2022 67,1 20,118,3 13,4912,31 30,02,312,61,17 39
26.09.2022 74,9 18,116,4 13,5812,28 31,02,110,41,13 36
10.10.2022 76,1 19,918,1 15,1213,78 34,52,49,81,16 36
                
11.10.2021 95,9 19,517,7 18,7017,00 37,82,68,51,17 55
05.10.2020 79,9 19,117,1 15,3013,68 40,05,716,31,42 45
07.10.2019 93,4 18,917,2 17,6816,03 30,33,412,11,17 51
08.10.2018 75,4 19,717,9 14,8713,47 33,83,913,81,26 29
09.10.2017 116,3 18,416,7 21,4119,47 31,71,47,71,06 47
ø 2017-2021 92,2 19,117,3 17,6515,97 34,73,411,71,22 46

10.10.2022 rel.

 83 104105 8686 99708495 77

Caption: SBY - sugar beet yield, SC - sugar content, WSC - white sugar content, SY - sugar yield, WSY - white sugar yield, K - potassium, Na - sodium, AmN - amino-N-content, SML - standard molasses loss, leaf weight - in percent based on the beet yield

Region Ochsenfurt (Franken, North of Bavaria) October 10th

3 Fields

  • soil type Parabrown earth/Brown earth
  • Ground points (valuation index for the soil) 75 - 95
  • plant density 60.000 bis 70.000 Pl./ha
     
Precipitation in mm 202220212020201920182017ø 2012 - 2021
01.10. - 31.03. 244226286223286195249
01.04.-25.09. 255465226269231463337
26.09.-10.10. 4314296813827
01.01.-10.10. 403590406419365573471

 
 

  SBY SCWSC SYWSY KNaAmNSML Leaf weight
  t/ha %% t/hat/ha mmol/1000 g R.% % b.o.R.
01.08.2022 test harvesting dropped for technical reasons
15.08.2022 37,1 22,220,1 8,247,44 45,84,520,11,57 24
29.08.2022 43,6 20,518,6 8,938,10 37,73,013,41,29 24
12.09.2022 51,8 19,917,9 10,319,29 39,63,415,31,36 24
26.09.2022 58,6 17,615,8 10,289,25 35,52,99,31,16 20
10.10.2022 58,5 17,415,7 10,219,17 36,12,59,71,18 17
                
11.10.2021 104,9 18,516,9 19,4417,68 30,73,97,71,08 59
05.10.2020 70,7 20,118,2 14,2412,90 35,14,214,51,30 22
07.10.2019 96,7 17,815,9 17,2115,36 31,46,715,91,32 24
08.10.2018 85,0 19,917,9 16,9215,21 31,63,721,51,42 20
09.10.2017 124,7 18,216,2 22,6320,21 37,42,716,11,35 41
ø 2017 - 2021 96,4 18,917,0 18,2216,40 33,24,215,11,29 35
10.10.2022 rel. 61 9292 5656 109586491 48

Caption: SBY - sugar beet yield, SC - sugar content, WSC - white sugar content, SY - sugar yield, WSY - white sugar yield, K - potassium, Na - sodium, AmN - amino-N-content, SML - standard molasses loss, leaf weight - in percent based on the beet yield

Region Straubing/Plattling (South of Bavaria) September 25th

3 Fields

  • Soil type: Parabrown earth 
  • Ground points: (valuation index for the soil) 75 - 80
  • Plant density: 85.000 - 105.000 Pl./ha
  • Sowing date: 21.03. and 10.04.2023
     
Precipitation in mm 202320222021202020192018ø 2013 - 2022
01.10. - 31.03. 322219259276333354282
01.04. - 10.09. 374289439315281237355
11.09. - 25.09. 1637160312328
01.01. - 25.09. 515401587459459404491

  

  SBY SCWSC SYWSY K Na  AmN SML Leafweight
  t/ha %% t/hat/ha mmol/1000 g R.% % o.R.
31.07.2023 54,1 14,512,8 7,866,90 39,13,08,11,18 61
14.08.2023 66,7 14,312,5 9,568,36 41,23,07,71,20 66
28.08.2023 82,1 14,812,9 12,1310,60 38,92,811,61,26 69
11.09.2023 97,6 15,213,4 14,8313,11 37,02,78,71,17 60
25.09.2023 103,5 16,314,4 16,8414,96 37,72,710,71,22 54
                
26.09.2022 102,2 17,816,2 18,1916,51 30,81,97,01,04 38
27.09.2021 100,1 17,415,6 17,4115,60 36,83,510,51,21 61
21.09.2020 95,0 18,717,1 17,7616,22 26,91,98,01,02 62
23.09.2019 103,9 18,216,4 18,9217,08 34,12,210,71,17 40
24.09.2018 96,3 18,917,1 18,1616,43 31,31,313,71,20 35
ø 2018-2022 99,5 18,216,5 18,1016,38 32,02,210,01,13 47
25.09.2023 rel. 104 8988 9391 118123107108 115


Caption: SBY - sugar beet yield, SC - sugar content, WSC - white sugar content, SY - sugar yield, WSY - white sugar yield, K - potassium, Na - sodium, AmN - amino-N-content, SML - standard molasses loss, leaf weight - in percent based on the beet yield

Graph: Root yield and sugar content of test harvestings every fortheen days from the end of july until the middle/end of october

Within the scope of the test harvestings, the beets are harvested and headed by hand. The beet yields can therefore be up to 10 percent higher than the practical results.