摘要： 应用D-饱和最优回归设计,通过氮、磷、钾、油枯配比田间试验,建立烤烟施用氮、磷、钾、油枯对烤烟产量、产值、含钾量及施肥利润的效应函数。结果表明,产量极大值氮、磷、钾、油枯优化施肥组合为N=0.405 9,P2O5=0.095 9,K2O=0.560 3,油枯=0.518 8,此时的产量为3 867.76 kg/hm2;烤烟产值极大值氮、磷、钾、油枯优化施肥组合为N=0.437 6,P2O5=-0.102 7,K2O=0.511 4,油枯=0.405 6,此时的产值为45 194.40元/hm2;烤烟含钾量极大值氮、磷、钾、油枯优化施肥组合为N=0.501 0,P2O5=0.062 3,K2O=0.866 3,油枯=0.359 3,此时的含钾量为3.31%;最佳施肥利润的氮、磷、钾、油枯优化施肥组合为N=0.354 5,P2O5=-0.032 7,K2O=0.169 7,油枯=0.276 6,其最佳施肥利润为41 766.49元/hm2,此时经济产量达3 821.33 kg/hm2,产值达44 894.43元/hm2,含钾量为3.22%。
关键词:
烤烟,
氮磷钾油枯配施,
农艺性状,
经济性状,
效应模式
Abstract: "The effects of N,P,K and oil cake application on economics character of flue-cured Tobacco and benefit of the fertilization were studied in the field by using the D-optimum regression design of supposed saturation.The results show that the optimum N,P,K and oil cake application amounts for the maximum yield of tobacco(3 867.76 kg/ha) are N =0.405 9,P2O5=0.095 9,K2O=0.560 3,oil cake=0.518 8;the optimum application amounts for the maximum value(45 194.40 yuan/ha) are N=0.437 6,P2O5=-0.102 7,K2O=0.511 4,oil cake=0.405 6;and those for the maximum uptake of K(3.31%)are N=0.501 0,P2O5=0.062 3,K2O=0.866 3,oil cake=0.359 3.The optimum N,P,K and oil cake application amounts for the best fertilization benefit are N=0.354 5,P2O5=-0.032 7,K2O=0.169 7,oil cake=0.276 6.The best fertilization benefit is about 41 766.49 yuan/ha with a yield of 3 821.33 kg/ha,value of 44 894.43 yuan/ha,uptake of K2O 3.22%. "
Key words:
Flue-curedtobacco,
ProportionofN, P2 O5,
K2O, Oilcake,
Agronomictraits,
Economictraits,
Efficientmode
中图分类号:
曾睿, 何忠俊, 程智敏, 向金友, 合勐麟. 氮磷钾油枯配施对烤烟农艺性状和经济性状的影响[J]. 华北农学报, 2010, 25(S2): 230-235. doi: 10.7668/hbnxb.2010.S2.051.
ZENG Rui, HE Zhong-jun, CHENG Zhi-min, XIANG Jin-you, HE Meng-lin. Effects of N,P_2O_5,K_2O and Oil Cake Application on Agronomic Traits and Economic Traits of Flue-cured Tobacco[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(S2): 230-235. doi: 10.7668/hbnxb.2010.S2.051.