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首页> 外文期刊>Annals of Agri Bio Research >Effect of nitrogen and phosphorus on growth, yield and nutrient uptake of Canola gobhi sarson (Brassica napus L.)
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Effect of nitrogen and phosphorus on growth, yield and nutrient uptake of Canola gobhi sarson (Brassica napus L.)

机译：氮和磷对芥花油菜生长，产量和养分吸收的影响

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摘要

To study the effect of nitrogen and phosphorus on growth, seed yield and nutrient uptake of Canola gobhi sarson (Brassica napus L.), a field experiment was conducted at Oilseed Research Farm, PAU, Ludhiana. Plant height increased linearly with successive increment in nitrogen levels at all crop growth stages. Flowering time occurred earlier with nitrogen application, whereas maturity was delayed with increasing nitrogen levels upto 150 kg N/ha. Yield contributing characters like number of primary and secondary branches and siliquae per plant increased significantly upto 125 kg N/ha. Highest seeds per siliqua were also obtained in 125 kg N/ha. Seed yield of 22.71 q/ha was obtained with 125 kg N/ha which was at par with 150 kg N/ha but significantlyhigher than 100 kg N/ha. Total nitrogen uptake in Canola increased significantly with 150 kg N/ha. The optimum dose of nitrogen on basis of economics was found to be 125 kg N/ha. Growth, yield contributing characters and seed yield of Canola were not influenced by the phosphorus application, whereas phosphorus uptake was increased significantly upto 30 kg P_2O_5/ha.
机译：为了研究氮和磷对芥花油菜生长，种子产量和养分吸收的影响，在卢迪亚纳州PAU的Oilseed Research Farm进行了田间试验。在所有作物生长阶段，株高随氮水平的连续增加而线性增加。施氮时开花时间较早，而成熟期随着氮含量增加至150 kg N / ha而延迟。产量贡献特征，如每株植物的初生和次生枝条数目和siliquae高达125 kg N / ha。还以125 kg N / ha获得了最高的种子。 125 kg N / ha的种子产量为22.71 q / ha，与150 kg N / ha相当，但明显高于100 kg N / ha。双低油菜籽中的总氮吸收量以150 kg N / ha显着增加。从经济角度出发，最佳氮剂量为125 kg N / ha。施磷不影响油菜的生长，产量贡献特征和种子产量，而施磷量高达30 kg P_2O_5 / ha则显着增加了磷的吸收。

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