Hoe om jou opbrengs-raaisels te ontsyfer
Deur Carl van HeerdenHoof Landboukundige: GroenteAgri Technovation As die wêreldwye vraag na gewasse so vinnig styg as wat sommige kenners voorspel, sal die oesopbrengs in die volgende paar dekades vinniger moet styg. Beter tegnologieë sal ’n deurslaggewende rol speel om opbrengste te verhoog, terwyl omgewingsimpakte tot die minimum beperk moet word. In die besonder sal presisie-landboutegnologieë ’n […]
Blueberry significance
Deur Johnny ViviersAgronomistAgri Technovation Blueberries have become a very popular functional food and one of the most widely consumed fruits worldwide because of the unique taste, delicate flavour, high nutritional value, and various other health benefits they offer (Bornsek et al., 2012; Kong et al., 2014). The Fresh Plaza (2020) reports that South African exports for […]
Why calcium is so important to fruit and especially avocado
By Jaques LandmanTechnical ManagerAgri Technovation, New Zealand Calcium deficiency It is widely accepted that a sub-optimal supply of calcium (Ca), causes many physiological disorders in fruit, deficiencies in plants are seldom visually noticed. Disorders such as blossom end rot in tomato and pepper, bitter pith in apples, jelly seed in mango, grey pulp in avocado, black heart in celery, and […]
GROEI – Uitgawe 15: 2020 Somer
GROEI – Uitgawe 15: 2020 Somer
Koolhidrate en vrugset
Deur Erik de VriesHortoloogAgri Technovation InleidingKoolhidrate is die energie boublok van alle groeiprosesse in ‘n plant. Suikers, wat as produk van fotosintese in die blare teenwoordig is, word vervoer na groeiende plantorgane en is verantwoordelik vir die verskaffing van koolstof en energie aan organe soos blomme, wortels, lote en vrugte. In die lente en somer […]
Die belangrikheid van mikro-elemente
PLANTVOEDINGDie belangrikheid van mikro-elementeDeur Pierré Strydom en Willem GroenewaldVilla Crop Protection Om in beheer te wees van jou gewas, beteken om te kyk na jou gewas se gesondheid. Die regte plantvoedingstrategie moet gekies word om optimaal te presteer. Wat beteken “mikro” vir jou? Miskien nie van groot waarde of onbelangrik? As dit die geval is, […]
Witvlieg, een van rankgewas boere se grootste vyande
Deur Des van HeerdenEntomoloogSyngenta Twee tipes witvlieë is veral problematies vir groente boere regoor Suid-Afrika, die glashuis witvlieg (GHWV, Trialeurodes vaporariorum) en die tabak witvlieg (TWV, Bemisia tabaci). Beidekan saam voorkom en beide kan plantvirusse oordra, dis veral hier waar die problem lê. Om die twee witvlieë van mekaar te onderskei moet daar na hulle vlerke […]
EcoCert attestation on Plant Health Products
By Sias LeipoldtKey Account ManagerMadumbi Sustainable Agriculture EcoCert is an organic certification body recognised and operating in over 80 countries, making it one of the largest organic certification organisations in the world. Madumbi Sustainable Agriculture is proud to announce that our partner, Plant Health Products (PHP) have complied with the requirements to achieve attestations on […]
Optimise plant growth and fertiliser-use efficiency with bio-fertilisers
By Stefan van Wyk,PhD Biotechnology (University of Pretoria)Head of Biological Research and Product Development for Victus Bio The rapid development of agriculture in recent decades relied mainly on improved crop varieties, modern irrigation methods, and new agrochemicals such as pesticides and fertilisers. However, that doesn’t imply that there isn’t room for new strategies and developments […]
Geïntegreerde blaaspootjiebeheer in sitrusproduksie
Deur Ernst de BeerLaeveld Agrochem Blaaspootjie (Scirtothrips aurantii Faure) is waarskynlik die mees gevreesde plaag op sitrus in die meeste sitrus produserende dele van Suid-Afrika. Behalwe vir die feit dat sitrusblaaspootjie direk self baie skade aanrig, is daar ook indirekte skade wat plaasvind weens die gevolg van die toediening van sitrusblaaspootjie middels. Die meeste middels wat gebruik word om […]
Management strategy for establishing productive macadamia orchards
Risky adjuvant practices with glyphosate
October 2020
