Published on: 22.03.2013

Summary of the field study of BIOPROFERM organic fertilizers on irrigated lands in the south of Ukraine (based on the report of the Irrigated Farming Institute of the Ukrainian National Academy of Agricultural Science, 2012)

Summary of the field study of BIOPROFERM organic fertilizers on irrigated lands in the south of Ukraine (based on the report of the Irrigated Farming Institute of the Ukrainian National Academy of Agricultural Science, 2012)

In early 2012, Bioz-Volyn started its cooperation with the Irrigated Farming Institute of the Ukrainian National Academy to study the effectiveness of BIOPROFERM organic fertilizer for vegetable crops in the southern region of Ukraine.

     The study was carried out in the experimental field of the vegetable farming laboratory of the Irrigated Farming Institute.

      The weather condition during the tomato vegetation period were very harsh and unfavorable for normal growth and development of the crops, especially the blooming and infructescence, with predominantly hot weather with downpours which could not significantly replenish the soil moisture. The precipitation-evaporation ratio based on Ivanov criterion was 0.19, which is equivalent to desert conditions.  Only the drip irrigation allowed the study to be conducted to the full extent.

Fertilization with Bioproferm improved the fruit setting of tomatoes. More precisely, the fertilization with 2.5 tons of the organic fertilizer per hectare produced 69 fruits per plant, and fertilization with 5 tons per hectare resulted in 91 fruits per plant, which was 13% and 49% higher than on the control field, respectively.

The use of the organic fertilizer had a positive impact on the yield of the tomatoes. The total yield after fertilization with 2.5 tons of Bioproferm per hectare was 94.7 tons per hectare (28% above the control), with a commercial-grade yield of 70.5 tons per hectare (22% above the control). The total yield after fertilization with 5 tons of Bioproferm per hectare was 120.3 tons per hectare (63% above the control), with a commercial-grade yield of 93.7 tons per hectare (62% above the control).

The phytosanitary condition of tomato batches showed no increase in foot rot during the mass fruit formation period. Alternaria blight affected the least plants (under 6%) on fields fertilized with 5 tons of Bioproferm per hectare. The development of the disease was insignificant and did not exceed 8%. The most plants (up to 20%) were affected with Alternaria blight on up to 15% of plant surface on the control field. No fungicides were used on any of the study fields.

          The fields fertilized with Bioproferm showed a trend towards the increase of organic substances and humus content.

The preliminary data make it possible to conclude that the use of Bioproferm organic fertilizer ontomato fields under drip irrigation improves the yield of dark chestnut medium-loamy soils in theSouthern Ukraine, improves the phytosanitary condition of the plants, and increases the yield of thetomato without deterioration in the quality of the produce.

"Effect of Bioproferm Organic Fertilizer on Productivity and Quality of Tomatoes and Fertility Properties of Dark Chestnut Soil Types with Irrigation in the South Ukraine" (in Ukrainian)