不同灌水及施肥方式对苜蓿生长的影响研究

The Study of Effects of Different Irrigation and Fertilization Methods on the Growth and Yield of Alfalfa

为了研究不同灌水、不同施肥方式对苜蓿生长及产量的影响,以紫花苜蓿为试验材料,对苜蓿株高、产量及土壤含水量等指标进行了对比分析,结果表明:苜蓿全生育期内滴灌用水量(含降雨量)7699.50 m3/hm^2,较漫灌节水53.26%,全生育期内滴灌施肥量298.95 kg/hm^2,较漫灌节肥50.18%;滴灌施肥处理较滴灌不施肥处理产量提高2212.20 kg/hm^2,较漫灌施肥处理产量提高1262.25 kg/hm^2,较漫灌不施肥处理(CK)产量提高2725.05 kg/hm^2。

In order to study the effect of irrigation and fertilization on growth and growth and yield of alfalfa,with alfalfa as experimental material,the plant height,yield and soil water content were compared and analyzed.The result showed that during the whole growth period,the water consumption of drip irrigation(including rainfall)was 7699.50 m3/hm^2,which was 53.26%less than that of water compared with flooding.During the whole growth period,the fertilizer application amount of drip irrigation was 298.95 kg/hm^2,which was 50.18%less than that of flooding.The yield of drip irrigation with fertilization treatment was increased by 2212.20 kg/hm^2 compared with that of drip irrigation treatment;was increased by 1262.25 kg/hm^2 compared with that of flooding with fertilization;was increased by 2725.05 kg/hm^2 compared with that of flooding(CK).