摘要
以玉米品种中单509为试验材料,在天津静海地区采取田间试验方法,单因素随机区组设计,设5个施钾水平,分别为22.5、45.0、67.5、90.0、112.5 kg/hm^2。研究结果表明:施钾量在22.5~67.5 kg/hm^2范围内,玉米株高、穗位高、百粒重、行粒数、穗行数、穗长、穗粗、穗行数、产量随施钾量的增加而增加,当施钾量超过67.5 kg/hm^2时,玉米株高、穗位高、百粒重、行粒数、穗行数、穗长、穗粗、穗行数、产量随施钾量增加呈降低趋势。因此,中单509的较适施钾量在67.5 kg/hm^2左右。经过分析,在天津地区中单509为代表的春玉米较适宜施钾量为67.5 kg/hm^2。
Taking maize Zhongdan 509 as test material ,field test methods were adopted in Jinghai region.The five levels of potash were 22.5 kg/hm2, 45.0 kg/hm2, 67.5 kg/hm2, 90.0 kg/hm2,112.5 kg/hm2 respectively. The results showed that the amount of potash was in the range of 22.5-67.5 kg/hm2, corn plant height, ear height, kernel weight, kernels per row, rows per ear, ear length, ear diameter, rows per ear and yield were increased with the increased amount of potash,when potash was more than 67.5 kg/hmz, corn plant height, ear height, kernel weight, kernels per row, rows per ear, ear length, ear diameter, rows per ear, yield were with decreased. So, appropriate potash application of Zhongdan 509 was 67.5 kg/hm2.
出处
《现代农业科技》
2017年第1期1-3,共3页
Modern Agricultural Science and Technology
