Agronomy

DIAGNOSIS OF NUTRIENT DISORDERS IN FLUE CURED TOBACCO

By Dadirai Chinamo, Crop Production & Molecular Technologies Division, Tobacco Research Board. Tobacco requires nutrients timeously and in balanced proportions. Any deviations result in nutrient disorders, i.e. the plant becomes unhealthy and exhibits disease-like symptoms (Fig. 1 a, b, c, and d). This affects the functioning of the plant system and may result in a …

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Batch vs Continual Mixed Flow Grain Drying

BY CORPCORD INVESTMENTS Continuous technological innovations have paved the way for advances in agri-processing equipment, allowing farmers a wider variety of options when choosing grain drying equipment. The improved technology available today places farmers firmly in control of their drying costs and quality control. The affordability of the equipment as well as the cost-saving parameter …

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Winter Tillage

By Doug McClymont The fortunate thing about winter tillage is that there is irrigation available to help with the situation. Winter crops in Zimbabwe have to be grown under irrigation so with this asset available one has total freedom to choose the method of tillage. The larger field crops grown include wheat and barley while …

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Potato Virus Y Alert

Article by: The Tobacco Research Board, (TRB) There have been several reports of PVY in tobacco field crops around the tobacco growing areas. The occurrence of PVY has been observed sooner than expected in normal seasons. This explosion of reports has come through the Plant Clinic and observations have also been made during visits to …

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Tillage

Some Practical Pointers When one starts to talk about tillage, it seems that whoever you are talking to thinks that their programme is the best and everything else is irrelevant or is a fanatic on a particular system such as “ban the plough or disc harrow”. In both cases, common sense is hardly common. There …

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Alkaline Hydrolysis

Article by: Stu Taylor A term used to explain the influence of the pH of spray water on various pesticides; pesticides work better in an acid condition and a high pH can even knock out some chemicals, rendering them totally non-effective. Synthetic pyrethroids are particularly prone to this condition and herbicide efficacy is increased quite …

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