Knowledge grows in South Africa
Manure is the waste from animals. It can be obtained either from natural deposits or livestock farming. The content of manure is highly variable, and each batch must be analysed if it is used for nutrient supply for crops. We recommend reading Natural fertilizers for vegetables with this article. Manure is different from compost. It must…
Natural fertilizers for vegetables usually refer to manure, compost and industrial waste products from animals. It consists of biodegradable material which is normally eco friendly. The process through which it is made is not necessarily eco friendly or sustainable. Each product has its advantages and disadvantages. The grower must evaluate and understand which natural fertilizer…
Soil sulfur is not a very well known element, but it is part of the macronutrients. Sulfur or S, is absorbed in the same amounts as phosphorus. Uptake of S by grasses is about 10 kg/ha, leguminous crops 25-30 kg/ha and cabbage about 40-45 kg/ha. The table below compares sulfur and phosphorus in the %…
Soil calcium can be a mystery as most growers focus on nitrogen, potassium and phosphorus. If you scan literature, scientists get very involved in detail and confusing for the average non post graduate farmer. This is a simple yet quick cheat sheet on soil calcium that will quickly give you an overview of the important…
Carrot1)Public Domain Image from https://pxhere.com/en/photo/1058100, The image is released free of copyrights under Creative Commons CC0. fertilizer requirements can be calculated if you know your soil type and have a good idea of the yield potential of your land and climate. These are basic norms and your specific microclimate and variety can have an influence…
Pea fertilizer (Pisum sativum) requirements can be calculated if you know your soil type and have a good idea of the yield potential of your land and climate. These are basic norms and your specific microclimate and variety can have an influence on the total amount applied. These norms do not take top dressings into…
Beetroot fertilizer requirements can be calculated if you know your soil type and have a good idea of the yield potential of your land and climate. These are basic norms and your specific microclimate and variety can have an influence on the total amount applied. These norms do not take top dressings into account, only…
Tomato fertilizer requirements can be calculated if you know your soil type and have a good idea of the yield potential of your land and climate. These are basic norms and your specific microclimate and variety can have an influence on the total amount applied. These norms do not take top dressings into account, only…
Green pea soil preparation Achieving good yields green pea soil preparation is the first step for any grower. The soil must be well drained as green peas are very sensitive to waterlogged conditions. Make sure that the water table of the underground water is not closer to the surface than 800 mm. As with any…
Green bean fertilizer requirements can be calculated if you know your soil type and have a good idea of the yield potential of your land and climate. These are basic norms and your specific microclimate and variety can have an influence on the total amount applied. These norms do not take top dressings into account,…
