STUDY ON THE EFFECTS OF DENSITY AND FERTILIZER  ON THE GROWTH, PRODUCTIVITY OF THE SOYBEAN VARIETY DT51, SUMMER-AUTUMN SEASON IN THAI NGUYEN

Phạm Thị Thu Huyền; Trần Văn Điền; Trần Thị Trường; Vũ Thị Nguyên

STUDY ON THE EFFECTS OF DENSITY AND FERTILIZER ON THE GROWTH, PRODUCTIVITY OF THE SOYBEAN VARIETY DT51, SUMMER-AUTUMN SEASON IN THAI NGUYEN

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Received: 09/09/20 Revised: 16/10/20 Published: 21/10/20

Authors

1. Pham Thi Thu Huyen , TNU - University of Agriculture and Forestry
2. Tran Van Dien, TNU - University of Agriculture and Forestry
3. Tran Thi Truong, Vietnam Academy of Agricultural Sciences
4. Vu Thi Nguyen, TNU - University of Agriculture and Forestry

Abstract

The study was conducted during the Summer-Autumn season of 2016 and 2017 in Phu Luong district and Vo Nhai district, Thai Nguyen province with the aim of determining the density and amount of fertilizer suitable for soybean variety DT51. The experiment is arranged according to the type of large plot (fertilizer), small plot (density), 3 density formulas (M1, M2, M3 corresponding to 20, 30, 40 plants /m2) and 3 fertilizer formulas. (P1: 15N: 40P: 40K + 1 ton of Song Gianh micro-organic fertilizer; P2: 30N: 60P: 60K + 1 ton of Song Gianh micro-organic fertilizer; P3: 45N: 80P: 80K + 1 ton of Song Gianh micro-organic fertilizer). The results showed that the density and amount of fertilizer in the experiment did not affect the growth time of the soybean variety DT51 (90 - 93 days). Plant height, leaf area index tends to increase with increasing density and amount of fertilizer. Number of level 1 branches tends to decrease with increasing density. The interaction between density and fertilizer on net yield is significant. The combinations with the highest and stable chromosomes over 2 years of experiment were P2M2, P2M3, P3M2, P3M3, reaching from 22.04 to 25.23 quintals/ ha (in Phu Luong), from 24.09 to 25.31. quintal / ha (Vo Nhai), net profit reached from 27.40 - 30.53 million / ha. Formula P2M2 (fertilizer level 30N: 60P: 60K combined density of 30 plants/ m2) for yield and high economic efficiency suitable for the investment of mountainous people.

Keywords

Soybean; density; fertilizer; growth; yield

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References

[1]. J. L. Harper, Population biology of plan. London: Academic Press, 1977.

[2]. T. T. Nguyen, and V. B. Nguyen, Potassium efficacy in relation to balanced fertilization for a number of crops on some soil types in Vietnam, Scientific research results of the Institute of Agro-soil, book 3, Agricultural Publishing House, Hanoi, 1999.

[3]. S. Sutharsan, V. Yatawatte, and S. Srikrisnah, “Effect of Different Rates of Nitrogen and Phosphorous on Growth and Nodulation of Glycine max in the Eastern Region of Sri Lanka,” World Journal of Engineering and Technology, vol. 4, pp. 14-17, 2016.

[4]. E. R. Cober, M. J. Morrison, and G. Butler, “Genetic improvement rates of short – season soybean increase with plant population,” Crop science, vol. 45, pp. 1029-1034, 2005.

[5]. J. D. Mayer, R. J. Lawn, and D. E. Byth, “Agronomic stadies on soybean (Glycine max L. Merrill) in the dry season of tropical cs II, Interraction of sowing date and siwing density,” Australian Journal of Agriculture Research, vol. 42, pp. 1075-1092, 1991.

[6]. A. Biabani, “Cultivar and density effects on yield of soybean in double cropping,” Afr. J. Agric. Res., vol. 5, pp. 3203-3206, 2010.

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