ACTA AGRICULTURAE BOREALI-SINICA ›› 2009, Vol. 24 ›› Issue (1): 189-193. doi: 10.7668/hbnxb.2009.01.042

Special Issue: Oil crops Soil fertilizer

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The Effect of the Zinc Fertilizer on Dry Matter Accumulation and the Grain Filling Process of SunFlower

ZHNAG Jun, ZHANG Run-sheng, ZHANG Sheng   

  1. Agronomy College Inner Mongolia Agricultural University Huhhot 010018 China
  • Received:2008-12-24 Published:2009-01-28

Abstract: This paper researches on the oil-sunflower varieties named NeiKuiZa3.The Experiment studied the leafarea index, the cmatter( DM) accumulation and the grain filling process of oil sunflower in each birth period at the fourzinc fertilizer levels. The purpose is to providing the theory basis for the reasonably use of zinc fertilizer. In result,the leafarea index,the DM accumulates and the grain filling process showed Zn2> Zn0> Zn1>Zn3 under the different tread of Zinc.Meanwhile, the grain DM ulation process showed“ S curve, which、an be simulated by Logistic equa-tion, the fitting adefficient between 0. 95-0. 99. The time of achieving the maximum filling speed is reduced with the increase of zinc fertilizer. The entire filling process shortened, but the maximum filling speed appears the Zn2 treatment.In the filling process, the grain moisture content drops gradually. And it can be simulated by Y= a+ bX equation, fittingcoefficient( r) is between 0. 96- 0. 99 between each treatment.

Key words: Sunflower, Zinc fertilizer, Dry matter(DM)accumulation, Grain filling process

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Cite this article

ZHNAG Jun, ZHANG Run-sheng, ZHANG Sheng. The Effect of the Zinc Fertilizer on Dry Matter Accumulation and the Grain Filling Process of SunFlower[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(1): 189-193. doi: 10.7668/hbnxb.2009.01.042.

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