| To explore the optimum management strategies of water and fertilizer in southern Henan province,effects of water and nitrogen on yield and quality of wheat were systematically studied in the field experiment for two consecutive years with two water treatments(normal and waterlogging) and three nitrogen levels(0 kg·hm-2,225 kg·hm-2,300 kg·hm-2). A national wheat cultivar Lankao 198 was used as material in this experiment. The results showed that the effects of nitrogen treatment on the yield and quality of wheat were greater than those of water,and the interaction between nitrogen and water was not significant. Nitrogen application could significantly increase the number of spikes,grains per spike,grain yield,grain weight,protein content,wet gluten content and sedimentation value,but had little effect on 1 000 kernel weight. The grain yield,protein content,wet gluten content and sedimentation value of wheat under waterlogging treatment were slightly lower than those under the normal water treatment,but the difference between the two water treatments did not reach the significant level,and the influence on yield components also differed due to the annual rainfall. At the same time,waterlogging treatment had no significant effect on grain weight. Therefore,nitrogen as a key factor would continuously affect grain yield and quality traits of wheat,and moisture content is not the key factor affecting the grain yield and quality traits which was attributed to the relatively high soil moisture content in the paddy field in southern Henan province. |
基本信息
