Individual variability of maize ear yield on sand soil in field experiment
1995
Lasztity, B. (Magyar Tud. Akad., Budapest (Hungary). Talajtani es Agrokemiai Kutatoint.)
In a long-term maize fertilization experiment set up on calcareous, sandy soil in the mid-region of rivers Danube and Tisza (Hungary), the individual variability of the hybrid NK-PX MSC 20 (hybrid of Martonvasar (Hungary)) was studied in the respect of ear mass quantity. Twenty ears were taken and individually measured from each plot in the five series, six treatments. Based on the tests and evaluations, the results can be summarized as follows: The differences between the repetition (soil heterogeneity) appeared also in the individual ear masses. On the average of the fertilization treatments the individual ear yield varied in the repetitions between 184 grams and 260 grams. Due to the soil heterogenity between the repetitions, there were significant differences both in fertilization treatments and in the average of those. The standard deviations characterizing the individual variability, showed inhomogeneity, significant differences between the repetitions and soils, respectively
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