论文部分内容阅读
以杂交油菜贵杂5号为材料,研究了稻油复种免耕条件下杂交油菜养分吸收、分配及转移特性。结果表明:在现蕾期,油菜免耕移栽N、P、K吸收量比油菜翻耕移栽分别高31.2%、2.4%、60.1%,而在初花期和终花期油菜免耕移栽略低于油菜翻耕移栽,但均未达到5%的显著差异水平。在苗期免耕移栽油菜的N、P、K积累量比翻耕移栽油菜分别高14.9%、27.5%、26.8%,在角果成熟期,免耕移栽油菜N、P积累量分别比翻耕移栽油菜高3.8%、53.1%。油菜茎枝中的N、P、K积累量、转移率为油菜免耕移栽比油菜翻耕移栽低,但未达5%的显著差异水平。油菜对N、P、K吸收利用率表现为油菜免耕移栽比油菜翻耕移栽低,亦未达到5%的差异显著水平。
The rapeseed hybrid rice Qia 5 was used as material to study the nutrient uptake, distribution and translocation characteristics of hybrid rapeseed under no-till conditions. The results showed that during rapeseed rape transplanting N, P, K uptake were 31.2%, 2.4%, 60.1% higher than rapeseed transplanting, respectively. During rapeseed rapeseed transplanting at no-tillage Lower than the rape transplanting, but did not reach the significant difference of 5% level. The accumulation of N, P and K in rapeseed during no-tillage transplanting was 14.9%, 27.5% and 26.8% higher than that of tillage transplanting rapeseed, respectively. During the ripening period of pod, N and P accumulation in rapeseed Than tillage transplanting rape 3.8%, 53.1%. The N, P, K accumulation and translocation rate of rapeseed shoots were lower than that of rapeseed transplanting under no-tillage transplanting but less than 5% significant difference. Rape N, P, K absorption and utilization showed that rapeseed tillage transplanting than rape tillage transplanting low, did not reach 5% of the significant difference.