by Hannes Coetzee | Jul 9, 2020 | World view
Carbon dating is based on the ratio of ordinary carbon (12C) and radioactive carbon (14C) or concentration of 14C. Carbon-14 is an unstable form of carbon that decays into nitrogen (14N) at a measured rate-and this forms the basis of carbon-14 dating. During the life... by Hannes Coetzee | Jul 9, 2020 | Agriculture
What does zinc do? Zinc is an essential plant nutrient and involved in may physiological processes. During heat stress the membranes of cells are damaged and “poisonous radicals” are formed. Zinc is involved in the detoxification of these radicals like super-oxide... by Hannes Coetzee | Jul 9, 2020 | Agriculture
Bemestingsadvies vir die volgende vrugte is beskikbaar; Hoofstroom; AVOKADO, MAKADAMIA, MANGO, OLYWE, PEKANNEUTE, PIESANGS en SITRUS Ander; AMANDELS, DRUIWE, GRANADILLA, KOEJAWEL, KOFFIE, SAGTEVRUGTE en TEE Indien u behoefte nie gelys is nie, kontak ons... by Hannes Coetzee | Jul 9, 2020 | Agriculture
The relation between N, P and K fertilisers and pH of the soil pH(water) of the soil Efficiency (%)* of nitrogen sources Efficiency (%) of phosphorus sources Efficiency (%) of potassium sources 4,50 35-30 20-25 30-35 5,00 50-55 30-35 50-55 5,50 70-75 45-50 70-75... by Hannes Coetzee | Jul 9, 2020 | Agriculture
Sink is `n noodsaaklike plantvoedingstof en is betrokke by `n groot aantal fisiologiese prosesse. Tydens hitte stres word die membrane beskadig en “giftige radikale” word gevorm. Sink speel `n belangrike rol in die ontgiftigings-proses van die radikale oa super-oksied...