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- W2363363993 abstract "[Objective] This study aimed to analyze the influence of six cultivation factors: sowing date,plant density,nitrogen fertilizer amount,phosphate fertilizer amount,potash fertilizer amount and boron fertilizer amount on seed oil yield of Brassica napus. [Method]Statistical analysis was carried out based on the data from previous studies and our work. [Result]Oil yield shared a negative correlation with sowing date,a parabolic relationship with plant density mostly,parabolic relationships with amount of applied nitrogen fertilizer and amount of applied boron fertilizer,straight-line relationships with amount of applied phosphate fertilizer and amount of applied potash fertilizer. The average amount of applied nitrogen fertilizer required to obtain the highest oil yield was 185. 18 kg/hm2for high-oil rape varieties( with oil content above 44. 00%),and under this condition,the average oil yield of low-oil rape varieties( with oil content below 42. 00%) was 1 247. 84 kg/hm2,while that of high-oil rape varieties was 1 442.60 kg/hm2,which was 15.61% more than the former. The average amount of applied nitrogen fertilizer required to obtain the highest oil yield for lower-oil rape varieties was 286. 28 kg/hm2,and under this condition,the average oil yield of the low-oil rape varieties was 1 350. 57 kg/hm2,while that of the high-oil varieties was 6.81% higher than it. There was a significant negative correlation between rapeseed oil yield and the amount of applied nitrogen fertilizer to obtain the highest oil yield( 0.980 0**). The optimum amount of applied nitrogen,phosphate,potash and boron fertilizer were 187.5-195,187.5-195,105-120, 135-150 and 15-22. 5 kg/hm2for high-oil B. napus varieties. [Conclusion] This study determined the influence of sowing date,plant density and amount of applied nitrogen fertilizer on oil yield of B. napus,and proposed an optimum cultivation pattern for high-oil varieties." @default.
- W2363363993 created "2016-06-24" @default.
- W2363363993 creator A5039061696 @default.
- W2363363993 date "2013-01-01" @default.
- W2363363993 modified "2023-09-23" @default.
- W2363363993 title "Effects of Main Cultivation Factors on Rapeseed Oil Yield" @default.
- W2363363993 hasPublicationYear "2013" @default.
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