Title: Effects of Sowing Period and Planting Density on the Yield and Economic Characters of Rapeseed( Brassica napus L. ) Shuangyou No. 8
Abstract:[Objective] In order to provide a theoretical basis for the establishment of high yield cultivation techniques,suitable sowing period,critical date of late sown and the best high-yield planting densit...[Objective] In order to provide a theoretical basis for the establishment of high yield cultivation techniques,suitable sowing period,critical date of late sown and the best high-yield planting density were studied choosing high yield and quality rapeseed Shuangyou No. 8 as experiment material. [Method]A field experiment was conducted to study the yield and economic characters of rapeseed Shuangyou No. 8 with different sowing date and plant density. [Result] There is great difference of growth period in different sowing date. The earlier the plant sowed,the longer the plant growth period lasted. The growth period of the treatment with sowing date on 15th Sep was 243. 8 days,longer than the treatments with sowing date on 1th Oct and on 15th Oct 20. 8 days and 27. 8 days respectively. In the same sowing date,the lower was density,the later was maturity date,and the higher was density,the earlier was maturity date. Sowing date and plant density had the significant effect on the pods per plant of rapeseed. [Conclusion]Sep 15th to Oct 15th is the suitable sowing period of rapeseed Shuangyou No. 8 in the south of Henan Province. The plant density 450 000 plants per hectare might contributed plant density 750 000 plants per hectare was the best and the higher was density,the higher was yield. Rapeseed Shuangyou No. 8 with sowing date on 30th Oct were all not go through winter safely.Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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