Abstract
Results on evaluation of effect of organic preparations LFSC-HA (Life Force Soil Conditioner Natural Humic Acids for soil fertility) and LFSC-HB (Life Force Soil Conditioner Humate Balance for soil enrichment) on productivity of potato plant of early maturing variety arizina. Two preparations have been provided by firm Life Force Ltd (Moscow). A field experiment was carried out on a potato plantation of the firm Agriko-Eurasia in Moscow district on sandy soil with low humus content. Organic preparations were applied in to soil by hand in powder form in 50 g/sq. m dosage. Reaction of potato plants on the experimental treatment was assessed by measurement of chlorophyll a and b content in potato leaves, and number and mass of tubes per plant at harvest. Positive effect of preparation used on chlorophyll content in leaves and number of tubes peer plant was found. Prevailing number of tubes of small sizes (less than 30 mm) - 38% may be considered as negative effect for early maturing variety. Number of tubes greater than 50 mm may be assigned to stimulative effect of organic preparation LFSC-HA on tube formation may and to additional amount of phosphorus and potassium containing in the preparation as well. Additional evaluation of organic preparation produced by Life Force Ltd are needed to separate positive effects of organic substances and additional amount of mineral elements in it. Having in mind positive effect tested preparations on formation of bigger number of tubes there it is advisable to carry out experiments with late maturing varieties.
Highlights
Two preparations have been provided by firm ‘Life Force Ltd (Moscow)
Reaction of potato plants on the experimental treatment was assessed by measurement of chlorophyll a and b content in potato leaves, and number and mass of tubes per plant at harvest
Positive effect of preparation used on chlorophyll content in leaves and number of tubes peer plant was found
Summary
Данное исследование посвящено оценке влияния препаратов LFSC-HA (Life Force Soil Conditioner Natural Humic Acids for soilfertility) и LFSC-HB (Life Force Soil Conditioner Humate Balance for soil enrichment) на рост и продуктивность картофеля сорта «Аризона». Для окончательного вывода об эффективности рекомендуемых производителем гуминовых препаратов необходимо проведение дальнейших исследований по выявлению влияния дополнительного количества минеральных элементов, содержащихся в таких препаратах. Действительно, применение гуминовых препаратов при горшечном выращивании растений оказывает значительный положительный эффект на рост и продуктивность растений и стало общепризнанным элементом технологии выращивания растений в малообъемных субстратах. Для доказательства целесообразности применения микродоз гуминовых препаратов в полевых условиях на различных культурах необходимо проводить всестороннюю оценку их влияния на конкретную культуру. Целью наших исследований было определить эффективность двух гуминовых препаратов, предложенных фирмой Life Force Group для испытания в полевых условиях на картофельных полях. Первый препарат LFSC-HB (Life Force Soil Conditioner Humate Balance for soil enrichment), второй — LFSC-HA (Life Force Soil Conditioner Natural Humic Acids for soil fertility)
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