- Sainfoin is undemanding to soil fertility, it can be cultivated on any type of soil.
- The best soils are medium and light loam, shallow sandy loam.
- High yields on soils give a normal moisture regime.
- Unsuitable for the cultivation of sainfoin raw, poorly drained and poorly permeable, acidic, as well as saline soils.
- The main requirement for the soil – acidity should be neutral or close to it (pH – 6.5 – 7.0). Before sowing sainfoin, the field must be lime, making, depending on acidity, increased doses of dolomite flour – from 6 to 10-12 t / ha.
Sainfoin is advisable to grow in fodder crop rotations.
Good predecessors are potatoes, corn, beets, and other crops, under which organic fertilizers were applied at least 60-80 t / ha.
It is not recommended to cultivate sainfoin after crops draining the soil (sunflower, Sudan grass).
Sainfoin is a good precursor for winter wheat, sugar beets, and other crops.
A mandatory technological operation in the tillage for the cultivation of sainfoin is the alignment of the upper layer, pre-sowing, and after-sowing rolling. Before sowing, the plot should be clean of weeds, well-aligned, finely lumpy, and have a dense bed at the depth of seed placement.
The application of mineral fertilizers depends on the planned yield of sainfoin and the content of nutrients in the soil.
Good results were shown by granular superphosphate added simultaneously with sowing in rows. The norm of 50 kg/ha of this fertilizer increased the yield of hay by 3.7c / ha, and the seed by 1.0c / ha.
Sainfoin seed material requires thorough cleaning to remove impurities and especially weed seeds. Before sowing, on the same day, treat the seeds with nitrogen. And the best effect can be achieved if simultaneous treatment with molybdenum-acid ammonium.
For the seeds of leguminous herbs can be applied to processing rizotorfina. This must be done in a place protected from the sun, as the sun’s rays are detrimental to bacteria. After processing, the seeds are sown immediately.
Also, do not forget that, subject to storage conditions, conditioned seeds do not lose their germination in the first two to three years of storage. In the next three years, the seeds sharply (2−2.5 times) lose their germination.