Optimized Cultivation of Starch-rich Sweet Potato, Rongshu 819, on Hilly Land

YAN Zheng

doi:10.19303/j.issn.1008-0384.2018.09.006

Volume 33 Issue 9

Mar. 2019

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YAN Zheng. Optimized Cultivation of Starch-rich Sweet Potato, Rongshu 819, on Hilly Land[J]. Fujian Journal of Agricultural Sciences, 2018, 33(9): 919-923. doi: 10.19303/j.issn.1008-0384.2018.09.006

Citation:

YAN Zheng. Optimized Cultivation of Starch-rich Sweet Potato, Rongshu 819, on Hilly Land[J]. Fujian Journal of Agricultural Sciences, 2018, 33(9): 919-923. doi: 10.19303/j.issn.1008-0384.2018.09.006

YAN Zheng. Optimized Cultivation of Starch-rich Sweet Potato, Rongshu 819, on Hilly Land[J]. Fujian Journal of Agricultural Sciences, 2018, 33(9): 919-923. doi: 10.19303/j.issn.1008-0384.2018.09.006

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Optimized Cultivation of Starch-rich Sweet Potato, Rongshu 819, on Hilly Land

doi: 10.19303/j.issn.1008-0384.2018.09.006

YAN Zheng

Fuzhou Institute of Agricultural Sciences, Fuzhou, Fujian 350018, China

Received Date: 2017-09-27
Rev Recd Date: 2018-06-22
Publish Date: 2018-09-01

Abstract

Abstract

Effects of transplanting density and applications of nitrogen, phosphorus and potassium fertilizers for the starch-rich sweet potato, Rongshu 819, on hilly land were studied for cultivation optimization. An orthogonal experiment by a quadratic, orthogonal and pivoting regression for 4 factors was conducted. The results showed that (1) the effects of 4 factors on the tuber yield were in the order of potassium > phosphorus > transplanting density > nitrogen; and (2) the highest yield of fresh sweet potatoes above 37.500 t·hm^-2 could be achieved by using the transplanting density ranging 46 260-50 108 plants·hm^-2 with the fertilization of pure nitrogen at a rate of 0.081-0.107 t·hm^-2, P₂O₅ at 0.061-0.092 t·hm^-2 and K₂O at 0.303-0.329 t·hm^-2.
- sweet potato,
- Rongshu 819,
- hilly area,
- optimized cultivation

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References(13)

References

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