Open AccessEffect of humus preparations on chlorophyl content in leave and potato plant productivity on sandy soil in Moscow distric
Author(s) -
Marina Lyashko,
U.V. Tsvetkova,
V.O. Gressis
Publication year - 2018
Publication title -
vestnik rossijskogo universiteta družby narodov. seriâ agronomiâ i životnovodstvo
Language(s) - English
Resource type - Journals
eISSN - 2312-7988
pISSN - 2312-797X
DOI - 10.22363/2312-797x-2018-13-2-85-92
Subject(s) - humus , potassium , chemistry , phosphorus , productivity , soil fertility , organic matter , chlorophyll , agronomy , horticulture , soil water , environmental science , biology , soil science , macroeconomics , organic chemistry , economics
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.