新疆不同追氮量对滴灌春小麦干物质积累动态及产量的影响

Effects of Different Nitrogen Amount on Dry Matter Accumulation and Yield of Spring Wheat under Drip Irrigation in Xinjiang

2015、2016年两年,在新疆塔城地区以追施氮肥量为试验因子,研究了在滴灌条件下,不同追氮量对春小麦不同器官干物质积累、转运及产量的影响。结果表明,2015年籽粒产量为总追氮量25kg/667m^2(BIII)>总追氮量20kg/667m^2(BII)>总追氮量总追氮量15kg/667m^2(BI)。而在降雨量相对较少的2016年,最终籽粒产量为总追氮量20kg/667m^2(BII)>总追氮量25kg/667m^2(BIII)>总追氮量总追氮量15kg/667m^2(BI)。

In the 2015 and 2016,in Tacheng prefecture of Xinjiang,under the condition of drip irrigation,the effects of different nitrogen rates on dry matter accumulation,translocation and yield of spring wheat in different organs were studied by using nitrogen fertilizer rate as a test factor.The results showed that2015grain yield was total nitrogen 25kg/667m^2(BIII)>total nitrogen 20kg/667m^2(BII)>total amount of nitrogen 15kg/667m^2(BI).In2016,rainfall was relatively low,the total amount of total nitrogen 20kg/667m^2(BII)>total topdressing nitrogen 25kg/667m^2(BIII)>total topdressing nitrogen 15kg/667m^2(BI)in the final grain yield.