The slow, sure road to sustainable wheat production
Farmer's Weekly|March 20,2020
Since he started with conservation farming more than 12 years ago, MG Lotter has learnt that there are no quick fixes in grain production. He spoke to Glenneis Kriel about managing his farm in the Overberg.
Glenneis Kriel
The slow, sure road to sustainable wheat production

MG Lotter, who farms at De Vlei near Caledon in the Western Cape, has experimented in several ways over the years to improve wheat production sustainability. These have even included planting summer cover crops and the use of non-synthetic fertiliser. One of his latest experiments, however, has resulted in a complete re-evaluation of his 1 800ha production system.

Up to a few years ago, he used a winter crop rotation that included a long-term lucerne pasture cycle on all his lands. He then switched from this to a continuous winter crop rotation on the best two-thirds of his lands and permanent mixed medics-lucerne pastures on the remainder.

“The main idea was to reduce input costs and risk by not planting crops on the poorer soils,” he explains.

While a crop mixture can improve soil health, Lotter’s main reason for planting medics and lucerne was to extend the availability of forage on the farm. Medics is available from just after the first winter rain up until October, depending on climatic conditions, while lucerne helps fill the gap that usually occurs in summer.

BACK TO THE DRAWING BOARD

For the first three years, the trial worked well; thereafter, broadleaf weeds started taking over the pasture, leaving very little biomass for the sheep to eat. Lotter asked a number of dairy farmers for their advice, and was told that they planted a medicsclover mixture at least once every four years for optimal production.

This made him think that the same could hold true for the lucerne-medics mixture. So he decided to plant black oats with seed mixes in the pastures, and the results were astonishing. The medics-lucerne combination helped loosen and improve the soil, resulting in a good multi-species crop, and the pasture recovered so well that there was no need to replant it the following year.

هذه القصة مأخوذة من طبعة March 20,2020 من Farmer's Weekly.

ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.

هذه القصة مأخوذة من طبعة March 20,2020 من Farmer's Weekly.

ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.

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