The carried out researches have shown that the period between the 5th and 20th April is the best time for setting up the plantation of Plantago psyllium (sowing directly into the soil). In this case the vegetation season, since the seed-time till the harvest-time, is about 100—114 days. A delay in starting the plantation results in the crop decreasing. The plant congestion (5 — 11 kg of seeds per 1 ha in the row spacing of 20 — 40 cm) does not cause any essential differences in the yield. 5 kg of seeds per 1 ha in the row spacing of 20 — 40 cm, is assumed as the best sowing standard that makes the mechanical treatment possible. The mineral fertilization: N - 60 kg/ha, P2Os - 40 kg/ha, K20 - 80 kg/ha, when soil is rich enough in those components, does not cause any statistically evidenced differences in the seed crop. The investigated agents, i.e. the seed-time, the congestion of plants as well as mineral fertilization, do not influence the viscosity of seeds.
Six warm-blooded horses in the age of 6 till 16, were researched. The horses were divided into two groups: experimental and testing (each per 3 horses). In the first stage the trial was taken up to estimate the grade (rank) of sand accumulation in the alimentary canal of all horses with using the floatation test. In the second stage the experimental group with the given foragegot the supplement of Plantago Psyllium seeds in the amount of 210 g per horse per day during 7 days. The researches revealed that preventive supplement of Plantago Psyllium seeds three times increases the amount of sand excreted from the alimentary canal. So using the supplement of Plantago Psyllium seeds can prevent the excessive of sand concentration in horses alimentary canal and this way decreases the risk of occurring the intestinal colic diseases – in the matter.