晋祠水稻节水灌溉技术的试验研究

Experimental Study on Water-saving Irrigation Technology of Jinci Rice

近年来,晋祠水稻的种植面积、口感和品质均有所下降,为了挽救晋祠大米的品牌和口碑,利用当下有限的晋祠泉水进行晋祠水稻的节水灌溉试验是十分必要的。基于田间小区试验,研究了浅-湿-晒、控制灌溉、常规灌溉三种灌溉方式对水稻的影响,结果表明:浅-湿-晒处理的各项田间农艺性状指标,除株高外,均优于控制灌溉和常规灌溉;浅-湿-晒、控制灌溉、常规灌溉处理生育期的耗水量分别为10 040 m3/hm2,7 790 m3/hm2,12 485 m3/hm2;浅-湿-晒、控制灌溉、常规灌溉处理生育期的水分生产率分别是0.795 kg/m3,0.793 kg/m3,0.596 kg/m3。通过节水灌溉试验,为当地水稻灌溉定额的编制提供依据。

In recent years, the plant area, taste and quality of Jinci rice are descendent. In order to save the brand and reputation of Jinci rice, it is necessary to use the present limited Jinci spring for the water-saving experiment of Jinci rice. Based on the field plot experiment, the effect of three irrigation styles（shallow-wet-sunbaked irrigation, controlling irrigation and normal irrigation） on rice is studied. The results show that the indexes of field agronomic characteristic of shallow-wet-sunbaked irrigation are superior to the controlling irrigation and normal irrigation, except for the plant height. The water consumption in growth period of shallow-wet-sunbaked irrigation, controlling irrigation, normal irrigation is 10 040 m3/hm2,7 790 m3/hm2,12 485 m3/hm2 respectively. While the water productivity in growth period of the above three irrigation styles is 0.795 kg/m3, 0.793 kg/m3, 0.596 kg/m3. The water-saving experiment provides the basis for the irrigation quota compilation of local rice.