The effect of different nitrogen rates on grain yields and grain quality in oats (Avena sativa L.)

Malesevic, M.; Bogdanovic, D.; Starcevic, Lj.; Jovicevic, Z.

The effect of different nitrogen rates on grain yields and grain quality in oats (Avena sativa L.)

1996

Malesevic, M. (Institut za ratarstvo i povrtarstvo, Novi Sad (Yugoslavia)) | Bogdanovic, D. | Starcevic, Lj. | Jovicevic, Z.

The results led to the following conclusions: Oat yields depended more on the year as a factor than on the N rate applied. In addition to weather conditions, the year affected oat yields in terms of the amount and distribution of nitrate N in soil. When the nitrate N content in the layer below 90 cm was about 120 kg/ha at the time of harvest, 30 kg/ha of N from mineral nutrients were sufficient to attain the maximum grain yield. The grain and straw protein content were high, but it did not depend significantly on the N rate applied. The yield of straw was considerably higher than that of grain. The harvest index was relatively low and it decreased with an increase in the amount of N applied. Increasing N rates were shown to increase the number of panicles per square meter and decrease the number of grains per panicle.

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