News / Nuusbrokkies

Hopefield Farmers Day / Boeredag

PROTEIN RESEARCH FOUNDATION — 2022-08-26

Conservation Agriculture Production system in Sand

Presented in cooperation with Gideon Melck.

Waterboerskraal Hopefield
2 September 2022

MORE INFO & PROGRAMME

Bewaringslandbou Produksiestelsel vir Sand

Aangebied in samewerking met Gideon Melck.

Waterboerskraal Hopefield
2 September 2022

MEER INLIGTING & PROGRAM


Sojaflits 2 / Soybean News Flash 2

PROTEIN RESEARCH FOUNDATION — 2022-08-01

Konvensionele bewerking wat op hierdie stadium gedoen word moet grondvog deeglik in berekening neem, aangesien grondvog aanleiding mag gee tot kluitvorming en onegalige bewerking.

  • Ploegaksie slegs waar voginhoud van grond reg is;
  • Sekondêre bewerking moet tot die minimum beperk word;
  • Meganiese beheer van onkruide mag in sommige gevalle gerade wees;
  • Verseker dat winteronkruid en opslag van die vorige gewas doeltreffend bestry word.

Bewaringsbewerking is reeds in 'n vorige "flits" bespreek. Maak egter seker dat onkruid doeltreffend bestry word.

  • Akkurate tenkmengsels en chemiese middels moet gebruik word;
  • Windspoed moet te alle tye in ag geneem word om doeltreffende verspreiding van chemiese middels te verseker;
  • Watervolumes moet voldoende wees om onkruide te beheer;
  • Groeitoestande van onkruide moet bevorderlik wees vir die opname van gif.

Kalibrasie van planter en spuite

  • Alle implemente behoort nou finaal versien te word;
  • Kalibrasie van planters en spuite behoort afgehandel te wees;
  • Maak seker dat implemente vry van onkruid, stoppels ensovoorts is wat onkruidsaad of siektes kan versprei.

Waar grondverdigting 'n probleem is kan ripaksies uitgevoer word indien dit nie tevore moontlik was nie. Ongeag wanneer gerip word, maak seker dat dit noodsaaklik is.

Saad wat vroegtydig bekom is moet op 'n koel droë plek gestoor word. Sorg dat saad te alle tye baie versigtig hanteer word. Langdurige stoor van saad in 'n warm omgewing wat ook vogtig is, sal kiemkragtigheid en veral groeikragtigheid sterk negatief beïnvloed.

SIEN OOK WESSEL VAN WYK SE VIDEOS OP ONS WEBTUISTE

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Soil moisture must be taken into consideration if conventional cultivation is done at this stage, as soil moisture may result in clod formation and uneven cultivation:

  • Ploughing should be done only if the soil moisture level is correct;
  • Secondary cultivation should be limited to minimum levels;
  • Mechanical weed control may be advisable;
  • Ensure that winter weeds and self-sown seedlings from the previous crop are effectively controlled.

Conservation agriculture was discussed in a previous news flash. Ensure, however, that weeds are controlled effectively:

  • Tank mixtures and chemical applications should be accurate;
  • Wind speed must be taken into account when spraying to ensure effective application of chemicals;
  • Water volumes must be sufficient to control weeds;
  • Growing stages of weeds must be favourable for chemical uptake.

Calibration of planters and spraying equipment:

  • All implements should be serviced at this stage;
  • Calibration of planters and spraying equipment should be completed;
  • Ensure that implements are free of weeds and stubble so as to prevent the spreading of weeds and diseases.

If not possible to rip beforehand, ripping can now be done where soil is compacted, but only when this is essential.

Seed should be stored in a cool, dry space, and should be handled with care at all times. Germination and especially growth vigour will be negatively impacted when seed is stored in a warm, moist space.


Sojaflits 1 / Soybean News Flash 1

PROTEIN RESEARCH FOUNDATION — 2022-07-15

  • Evalueer die pas afgelope seisoen op beide die sojaboonland en die land waarop die komende seisoen sojabone geplant gaan word. Waarna veral opgelet behoort te word sluit in:
    • swak kolle, stel vas waarom dit swak is en hoe kan dit opgelos word;
    • watter siektes, peste en plae het voorgekom en hoe kan die bestryding daarvan verbeter word;
    • kyk na die onkruidspektrum en hoe dit beter beheer kan word;
    • neem die wagperiode van onkruiddoders in ag voordat sojabone aan 'n bepaalde land toegewys word.
  • Neem verteenwoordigende grond monsters en opbrengskaarte en maak seker dat die resultate vroeg genoeg benut kan word om regstellings, indien enige, betyds te maak. Hierdie inligting sal ook die tydige aankoop van kunsmis en kalk bevorder. Neem in ag dat 1 ton sojaboon graan tot soveel as 100kg N, 8kg P en 40kg K en 6kg S verwyder met 'n water pH wat verkieslik bokant 6 moet wees.
  • Cultivarkeuses moet gemaak word om saad betyds te bestel.
    • Kies allereers die volwassenheidsgroep waaruit die cultivars moet kom en daarna die bepaalde stel cultivars. Hoe koeler die gebied hoe vinniger sal die verkose cultivar moet wees om die eerste ryp te ontsnap, of om in te pas by 'n laat aanplanting. Volwassenheidsgroepe val tussen 4 en 7 met 4 die kortste groeiers en 7 vir 'n warm lang produksieseisoen.
    • Kies meer as een cultivar met verskillende groeilengtes. Nie alleen sal dit die risiko versprei nie maar uit 'n praktiese oogpunt sal dit die stroopdatum versprei wat die druk op stroperaanwending verlig.
    • Maak seker van spesifieke cultivareienskappe soos siekteverdraagsaamheid, peulhoogte (vir maklike stroopbaarheid) en veral aanbevole plantestand.
    • Saadgrootte sal bepaal hoeveel saad per hektaar benodig word by 'n plantestand wat mag wissel tussen 250 000-400 000 plante per hektaar.
    • Die keuse van 'n spesifieke cultivar vir 'n bepaalde gebied behoort gebaseer te word op soveel bronne van inligting as wat bekom kan word. Die Nasionale Cultivarproewe wat deur die LNR uitgevoer word is 'n goeie bron van basiese inligting, vul dit aan deur maatskappy inligting en studiegroepproewe.

Selekteer die beste land en pas wisselbou toe

  • Sojabone behoort verkieslik op 'n diep goedgedreineerde grond met goeie waterhouvermoë geplant te word. Sojabone kan goed produseer op kleigronde maar kan ewe eens op sandgronde verbou word alhoewel knopwortelaalwurm 'n probleem mag skep.
  • Beplan die gewasopvolging. Onthou wisselbou is 'n stelsel nie 'n toevallige besluit nie. Neem veral in ag dat mielies wat op sojabone volg in die meeste gevalle meer as 10 persent opbrengsverhoging (op mielies) toon.
  • Wisselbou kan ook met koring suksesvol gedoen word.

Bewaringsbewerking

  • Sou 'n produsent oorweeg om na bewaringsbewerking oor te skakel sal hy nou reeds alle aspekte in orde moet kry vir die verandering.
    • pH regstel;
    • Bemesting optimiseer veral fosfaat;
    • Beperkende lae ophef;
    • Verseker dat werktuie geskik is vir die nuwe stelsel, veral stoppelplanter(s) en spuit toerusting;
    • Moenie oorskakel na bewaringsbewerking as stoppel op die land minder as 30 persent van die landoppervlakte bedek nie.

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  • Evaluate the past production season on both the soybean land and on the land where soybeans are to be planted in the coming season. Be on the lookout for aspects such as:
    • weak patches – determine why the patches are weak and how the problem can be resolved;
    • which diseases and pests were problematic, and how control can be improved;
    • the weed spectrum during the past season, and how control can be improved;
    • take the waiting period for herbicides into consideration before planting soybeans in a specific area.
  • Take representative soil samples and yield charts and ensure that the results are utilised timeously to effect corrective steps, if required. This information will also promote the timeous acquisition of fertiliser and lime. Take into account that a yield of 1 ton soybeans removes as much as 100kg N, 8kg P, 40kg K and 6kg S from the land. Water pH should preferably be ≥6.
  • Cultivar choices should be made so that seed can be ordered well on time:
    • First select the appropriate maturity group before deciding on specific cultivars. Fast growers should be selected in order to evade the first frosts in the cooler areas, or to fit in with a late planting. Maturity groups range from 4 to 7, with 4 being the shortest growing period and 7 for a long, warm production season.
    • Choose more than one cultivar with different growing periods. This will not only spread the risk, but will also alleviate pressure at harvesting time as harvesting dates will be well spaced.
    • Check cultivar characteristics such as disease tolerance, pod height (for easy harvesting) and take note of recommended plant density.
    • Seed size (hundred seed mass) will determine the quantity of seed required per hectare, with a planting density that may vary between 250 000 and 400 000 plants per hectare.
    • The choice of a specific cultivar for a specific area should be based on as many sources of information as possible. The results of the ARC's National Cultivar Trials are a good basic source of information. These results can be supplemented with information from seed companies and study groups.

Select the best land available and apply crop rotation:

  • It is preferable to plant soybeans on deep, well-drained soil with good water retention capacity. Soybeans can produce well on clay soils, and can also be planted in sandy soils although root knot nematodes may cause problems.
  • Plan the crop rotation system. Keep in mind that crop rotation is a system and not an accidental decision, and that a soybean:maize crop rotation system in most instances result in a 10% yield increase.
  • A crop rotation system with wheat can also be successful.

Conservation agriculture

  • Corrective measures need to be taken before switching to conservation agriculture. These include:
    • correction of pH;
    • optimising fertilisation specifically phosphate;
    • addressing soil compaction issues;
    • making sure implements and tools are suitable for use in conservation agriculture practices, especially planters and spray equipment;
    • do not switch to conservation agriculture if stubble on the land covers less than 30% of the soil surface.


PRF Canola Yield Competition 2021 PNS Canola Opbrengskompetisie

PROTEIN RESEARCH FOUNDATION — 2021-07-26

Kindly note that the PRF Canola Yield Competition will continue this season but in a different format. Information in this regard will be provided during the first week of August 2021.


ANNOUNCEMENT  //  AANKONDIGING


Neem asseblief kennis dat die PNS Canola Opbrengskompetisie wel hierdie seisoen voortgaan, maar in 'n ander formaat. Volledige inligting sal gedurende die eerste week van Augustus 2021 verskaf word.


Canola Yield Competition Winners – 2020 – Canola Opbrengskompetisie-wenners

PROTEIN RESEARCH FOUNDATION — 2021-05-08

Congratulations to Sakkie Rust, Melt van der Westhuizen, Franco le Roux en Johannes Beukes who are the four winners of the 2020 Canola Yield Competition.

VIEW RESULTS / SIEN RESULTATE

Veels geluk aan die vier wenners van die 2020 Canola Opbrengskompetisie: Sakkie Rust, Melt van der Westhuizen, Franco le Roux en Johannes Beukes.


List of Soybean Pamphlets


The following soybean pamphlets are available. Contact Maria du Preez at +27 11 234 3400 or maria@proteinresearch.net for more information: