We are a company engaged in the trading and sales of mineral fertilizers. We specialize in the sale of agricultural lime. Our lime - PROFITKALK is an excellent agent for farmers and gardeners operating on large area plantations.
If you have acidic fields, are looking for a cheap calcium carbonate with high reactivity or would like to cooperate with us, then you've come to the right place!!!
Suitable soil pH determines the effectiveness of fertilization and yields. Most cultivated plants in our country require a soil with a pH close to neutral, yet more than 50% of the cultivated land in Poland is characterized by a too low pH (acidic soil).
Soil acidification effects in the drastic reductions in crop yields, despite the use of proper cultivation and fertilization. Plants grown on acidic soils are poorly nourished due to improper development of the root system and lower availability of nutrients.
The acidic and very acidic soils require periodic liming to restore optimum soil pH and immobilize toxic aluminum and manganese . Liming also increases the absorption of macronutrients and micronutrients necessary for proper plant growth. This treatment is preferably carried out in the autumn during post-harvest, at least 2-3 weeks before use of other fertilizers. Plants should not be sown immediately after the procedure. The first step in determining the need for soil liming is to determine the pH. The test samples are preferably obtained during early spring or during post-harvest and autumn.
Sampling of soil done by the Chemical and Agriculture Station will determine the need for liming, based on the marked pH and soil agronomical category (Table 1).
tab.1 Soil liming needs
|Evaluation of liming needs||Soil agronomical category|
|pH w 1 mol KCl|
|Necessary||to 4,0||to 4,5||to 5,0||to 5,5|
|Unnecessary||from 5,6||from 6,1||from 6,6||from 7,1|
* Optimum pH range for given soil agronomical category
On the basis of the soil agronomical category liming needs are determined for the optimal dose of calcium fertilizers calculated as pure calcium oxide (table 2).
tab.2 Dosage of lime fertilizers in tonnes of CaO per hectar
|Soil agronomical category||Evaluation of liming needs|
* Fertilizer dosage should be divided for several years
The rate and extent of reaction between soil and calcium fertilizer are decided by: