草莓种苗繁育氮磷钾“3414”施肥效应

Effect of ‘3414’ Fertilizer of N,P and K on Strawberry Plantlets

以草莓植株为试材,采用"3414"肥效试验方案,研究了N、P、K不同施肥处理对草莓繁苗产量和经济效益的影响,并采用一元二次肥料效应模型得出了草莓繁苗最佳施肥量,以期为玉溪地区草莓种苗繁育施肥提供科学依据。结果表明:N、P、K对草莓繁苗产量、产值有较大影响,N_2P_2K_2处理的肥料配施比例最佳,每667 m^2产苗量为79 636株,增产率达156.36%,每667 m^2产值及纯收入分别为31 854.40、31 693.76元,每667 m^2净增产值及纯收入分别为11 482.40、11 321.76元,氮肥对草莓繁苗量的影响最大、磷肥其次、钾肥最小。通过回归分析建立一元二次回归方程,得出每667 m^2最佳经济产苗量的N、P_2O_5、K_2O施肥量分别为13.36、10.09、10.55 kg。

To provide the theoretical basis for the application of fertilization for the production of strawberry nursery in Yuxi area,the ‘3414’ fertilization effect test was carried out.The effects of N,P and K treatments on the yield and economic benefit of strawberry nursery were researched.And the regression analysis recommended the optimum fertilizing quantity of N,P,K was obtained.The results showed that the N,P and K had relatively good effects on the seedling numbers and economic benefits of strawberry plantlets.Treatment N2 P2 K2 showed the optimal fertilizer application ratio,its seedling numbers was 79 636 plants per 667 m2,seedling numbers increasing rate was 156.36%,the output value and net income were 31 854.40,31 693.76 RMB per 667 m2,increment were 11 482.40,11 321.76 RMB per 667 m2.N fertilizer had the greatest impacts on the number of strawberry seedling,followed with P fertilizer;while K fertilizer showed the poorest impacts.In this test,fertilizer application for the optimal economic benefit was N 13.36 kg per 667 m2,P2 O510.09 kg per 667 m2,K2 O 10.55 kg per 667 m2.