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Effects of Foliar Application of Zinc on Millet

Author: ZongXuFang
Tutor: ZhangAiJun;ZhouDaMai
School: Agricultural University of Hebei
Course: Plant Nutrition
Keywords: Millet Zn fertilizer Yield Grain quality
CLC: S515
Type: Master's thesis
Year: 2011
Downloads: 21
Quote: 1
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Abstract

Zinc is available for human growth and developments of plants and nutrients, and it is a necessary element. Recent studies showed that zinc deficiency symptoms appeared in resident of cereal-based food group, and it is more than the main cereal crops. As the calcareous soil in north China, Availed-Zn content was low. Therefore, increasing Zn content of grain had important meaning for satisfying the body’s normal physiology process. The field test and pot experiment method were used in this paper. The study set three experiments: different concentrations of Zn fertilizer, different fertilized ways and fertilization in different stages of millet. Differences of enrichment of Zn in millet seeds and effects of different fertilized ways on millet growth and Zn contents of millet organs were researched. For the further development of millet with high Zn and improve the yield leaves of millet, this paper provided the theoretical base. The results as follow:1.Sprayed with different Zn concentrations, agronomic traits and each organ had a certain influence. The valley ratio of Jigu 20 was changed between 67.08% and 80.98%, and it was bigger than that of contrast treatment. Grain weight, the rice yield and plant height of Jiyou2 were the biggest in B3.2.Applied Zn fertilizer on corn ,the yield was significantly affected. Yields of Jigu20 and Jiyou2 were all significant in B3.3. Protein content of Jigu20 was increased from 8.26% (B0) to 11.13% (B3); Soluble sugar content of Jigu20 was enhanced from 1.48% (B0) to 2.52% (B3); Lysine of Jigu20 was improved from 0.18%(B0) to 0.30% (B3); the differences were all significant. Soluble sugar content of Jiyou2 in B3 was reached the peak; Protein and lysine of Jiyou2 in B4 were the biggest. However, the Zn was more than B4, the millet quality began to inferior.4. Zn content of different organs in both Jigu20 and Jiyou2 were as follow: In B0 or B1, Zn content of seed was the biggest, secondly it was leaf. After them, with spraying Zn concentration increased, the highest organic was leaf, secondly it was seed, but the sum content had increasing trend.5. Protein content of Jigu20 and Jiyou2 were the highest in T2. Lysine of Jiyou2 was increased by 7.11% and 8.99% respectively, that of Yu11 was improved by 8.79% and 1.26% respectively. Improve rate of soluble sugar of Jiyou2 in T3 was the biggest (33.31%), and that of T2 was the greatest (11.79%).6. Analyses of the experiments of fertilization in soil and seed dressing were as follow: Zn content of stem was the biggest. With the growth of millet, Zn content of all organs were decreased. To the heading stage, ear transformation was improved, it was based for Zn accumulation of seed.7. Plant height, ear length and spikelet of millet were enhanced through the treating methods of fertilization in soil and seed dressing. Effect of seed dressing treatment was less than Zn spraying treatment, but both of the two ways could improve Fv/Fm and Fv/Fo. Fv/Fm and Fv/Fo were begin to decreased at the last stage, and high Zn concentration had a smaller decrease.

Effects of Foliar Application of Zinc on Millet

Abstract

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