摘要
通过测坑试验对寒区水稻水分胁迫与肥料处理耦合的试验,用叶龄诊断模式和常规诊断模式判断水稻生育期,并分析不同水肥处理及诊断模式对产量及其构成因素的影响。结果表明:在2011年庆安地区叶龄诊断模式生育期比常规诊断模式提前。产量及构成因素方面,水分间比较S2处理有效穗数比对照处理显著提高,增产1.67%～4.68%;肥料间比较表明F3处理可获得较高产量水平;诊断模式比较表明叶龄诊断模式对水稻有效穗数的影响最为明显,产量提高1.56%～7.05%。叶龄诊断模式下S2F3处理获得高产9 194.0kg/hm2。
Through experiment in testing pits, the coupling of the water stress and fertilizer treatment of rice in cold region is tested, the growth period of rice is estimated by using the leaf age diagnostic mode and the conventional diagnostic mode, the influence of di- agnostic modes and different water and fertilizer treatments on the production and its components are analyzed. The results show that the growth period under the leaf age diagnostic mode is earlier than that under conventional diagnostic mode at Qingan in 2011. For the aspects of the production and its components, the effective panicle number of the S2 treatment under water contrast is higher than that of the contrast treatment and the production is improved by 1.67%-4. 68%; the F3 treatment under fertilizer contrast achieves higher yield. The diagnostic mode contrast indicates that the influence of leaf age diagnostic mode on effective panicle number of the rice is the most obvious and the production is improved by 1.56%-7. 05%. Under leaf age diagnostic mode, the S2F3 treatment a- chieves high yield of 9194. 0 kg/hm^2.
出处
《节水灌溉》
北大核心
2012年第8期16-18,共3页
Water Saving Irrigation
基金
黑龙江省自然科学基金项目(E201054)
东北农业大学博士基金项目(E090202)
关键词
水分胁迫
诊断模式
叶龄
产量
构成因素
water stress
diagnostic mode
leaf age
productiom component factors
