The influence of organic components of the liquid fertilizer Avit 35 on the yield of winter wheat
2000
Hudec, J. (Slovak Agricultural Univ., Nitra (Slovak Republic))
In the period 1989-90 and 1990-91, field microplot expeRIments were carried out to study the influence of a ratio of organic compounds in mixture, present in the liquid fertilizer Avit 35 on the yield of winter wheat. From the results it follows that a 9.9:0.1 ratio is optimal for the components in mixture. A smaller or bigger proportion of the components in mixture is not optimal, though in the range studied it increased the grain yield. For the application at the beginning of ear formation, it is most convenient to apply the mixture in the amount of 0.99 kg of alkanolamine, structurally similar to polyamines, and 0.01 kg of organic, structurally different compound per hectare. The mixture has considerably a greater effect on the grain weight than a number of grains. Using the optimal mixture, a statistically significant growth of 0.6 t/ha was obtained in the mean grain yield on the soil in Kolinany while the control variant produced a grain yield of 6.02 t/ha. In the site of Horna Malanta, a statistically non-significant increase of 0.31 t/ha in the yield of grain was observed in the average of experimental years, with the grain yield of 6.02 t/ha in the control variant
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