新葵杂18号氮、磷肥料试验研究

N,P Fertilizer Experiments of Xinkui No.18

【目的】摸索新葵杂18号栽培的最佳施肥配比方案。【方法】新葵杂18号施肥试验设3个处理,采用拉丁方排列设计。种肥以三料磷肥、磷酸二铵等N、P肥为主;苗期、蕾期以尿素、磷酸二铵等N肥。【结果】新葵杂18号最佳施肥方案施肥总量为尿素225-300 kg/hm2,磷酸二铵195 kg/hm2或三料磷肥225 kg/hm2。种肥用三料磷肥75 kg/hm2,或磷酸二铵60-120 kg/hm2,苗期追肥氮、磷配合,蕾期追尿素150 kg/hm2。其籽实产量、产油量最高。【结论】施用N、P化肥能显著提高油葵单位面积籽实和油脂产量;在N、P配合施肥中相对增施P肥油葵籽实增产显著,同时籽实皮壳率也相应提高。

【Objective】To explore the best fertilizer ratio of xinkui No.18 during cultiration.【Method】Fertilizer experiment of Xinkui No.18 was conducted in Anningqu experiment field of Xinjiang Academy of Agricultural Sciences in 2009.【Result】The result showed that it could obtain the highest seed yield and oil yield when using seed fertilizer mainly with triple phosphate,diammonium phosphate and other N,P fertilizer;it is better to use urea,diammonium phosphate and other N fertilizer in seedling stage and bud stage.【Conclusion】Application of N,P fertilizer could significantly increase seed and oil yield per unit area of sunflower;N P fertilization with relative increasing of P fertilizer could significantly increase sunflower seed yield,and the seed hull ratio increased correspondingly.more attention should be paid to the ratio of nitrogen and phosphorus fertilizer for getting the high yield and high oil.