摘要
为探明芝麻生产中氮、磷、钾肥最优化施肥参数,本试验运用"3414"肥料效应田间试验方案,对白芝麻品种郑芝98N09和黑芝麻品种冀9014的氮、磷、钾肥料效应进行了研究。结果表明:适量氮、磷、钾用量及其配施能显著改善芝麻的经济性状,提高芝麻产量。施氮量与芝麻株高、单株蒴数、单蒴粒数、千粒重等经济性状呈显著正相关,氮、磷、钾肥对郑芝98N09的经济性状的影响为氮>磷>钾,冀9014为氮>钾>磷。通过建立肥料与产量效应函数方程并结合经济效益分析得出,郑芝98N09的最佳施肥量为N 123.09 kg/hm2、P2O560.13 kg/hm2、K2O 73.31 kg/hm2,冀9014的最佳施肥量为N 133.92 kg/hm2、P2O570.85 kg/hm2、K2O 110.80 kg/hm2。因此,郑芝98N09施肥时应重施氮肥,适配磷、钾肥;冀9014应重施氮、钾肥,兼施磷肥。
In order to explore the optimum fertilization parameter of N, P and K in sesame production, the effects of N, P, K fertilization were studied using white sesame, Zhengzhi 98N09, and black sesame, Ji 9014, under field conditions through the “3414”design. The results indicated that appropriate amounts of N, P, K and their combine application can significantly improve the economic traits and yield of sesame. There are significantly positive correlations between the nitrogen application rate and plant height, capsule number per plant, seeds number per capsule and 1000/|seed weight. The effects of N, P, K fertilizer on economic traits of Zhengzhi 98N09 are in order: N〉P〉K, and on those of Ji 9014 in order: N〉K〉P. Economic benefit analysis for different fertilizer treatments through the establishment of a functional equation indicates that the most suitable amount of fertilidr in Zhengzhi 98N09 is N 123.09 kg/ha, P2O5 60.13 kg/ha and K2O 73.31 kg/ha, in Ji 9014 is N 133.92 kg/ha, P2O5 70.85 kg/ha and K2O 110.80 kg/ha. The application of N, P, K fertilizer of Zhengzhi 98N09 should be emphasized with increasing amount of N and supplemented with P and K, and which of the Ji 9014 should be emphasized with increasing amounts of N and K, and supplemented with P.
出处
《植物营养与肥料学报》
CAS
CSCD
北大核心
2013年第3期644-649,共6页
Journal of Plant Nutrition and Fertilizers
基金
现代农业产业技术体系建设项目专项资金(CARS-15)
河南省省院科技合作项目(112106000023)资助