黑龙江八一农垦大学学报
黑龍江八一農墾大學學報
흑룡강팔일농은대학학보
JOURNAL OF HEILONGJIANG AUGUST FIRST LAND RECLAMATION UNIVERSITY
2015年
3期
1-6
,共6页
孙文宏%纪伟波%陈秋雪%张明聪
孫文宏%紀偉波%陳鞦雪%張明聰
손문굉%기위파%진추설%장명총
水稻%寒地%氮肥施用时期%氮肥利用率%产量
水稻%寒地%氮肥施用時期%氮肥利用率%產量
수도%한지%담비시용시기%담비이용솔%산량
rice%cold area%period of nitrogen application%N use efficiency%yield
试验于2011~2012年在黑龙江省八五六农场进行，以空育131为材料，采用随机区组设计，研究了不同时期施用基蘖氮肥对水稻产量及氮肥利用率的影响。试验结果表明：当基肥正常施用时，插秧期施蘖肥处理（T3）与返青后施蘖肥处理（T2）相比，分蘖成穗率提高了9.09%（P＜0.05），成熟期全株干物质积累量增加4.50%~15.4%，齐穗期透光率降低11.6%（P＜0.05），产量增加0.12~0.17 t·km-2，氮素吸收利用率提高12.3%~12.5%（P＜0.05）。当基肥不施用氮肥时，基蘖肥于插秧时施用处理（T5）与基蘖肥于返青后施用处理（T4）相比，成熟期全株干物质积累量增加4.67%~6.51%，产量增加0.12~0.49 t·km-2，氮素吸收利用率增加11.0%~11.1%（P＜0.05）。综合分析表明，当基肥施用氮肥时，蘖肥在水稻插秧期施用效果最好；当基肥不施用氮肥时，蘖肥在插秧期施用效果好于返青期施用。
試驗于2011~2012年在黑龍江省八五六農場進行，以空育131為材料，採用隨機區組設計，研究瞭不同時期施用基蘗氮肥對水稻產量及氮肥利用率的影響。試驗結果錶明：噹基肥正常施用時，插秧期施蘗肥處理（T3）與返青後施蘗肥處理（T2）相比，分蘗成穗率提高瞭9.09%（P＜0.05），成熟期全株榦物質積纍量增加4.50%~15.4%，齊穗期透光率降低11.6%（P＜0.05），產量增加0.12~0.17 t·km-2，氮素吸收利用率提高12.3%~12.5%（P＜0.05）。噹基肥不施用氮肥時，基蘗肥于插秧時施用處理（T5）與基蘗肥于返青後施用處理（T4）相比，成熟期全株榦物質積纍量增加4.67%~6.51%，產量增加0.12~0.49 t·km-2，氮素吸收利用率增加11.0%~11.1%（P＜0.05）。綜閤分析錶明，噹基肥施用氮肥時，蘗肥在水稻插秧期施用效果最好；噹基肥不施用氮肥時，蘗肥在插秧期施用效果好于返青期施用。
시험우2011~2012년재흑룡강성팔오륙농장진행，이공육131위재료，채용수궤구조설계，연구료불동시기시용기얼담비대수도산량급담비이용솔적영향。시험결과표명：당기비정상시용시，삽앙기시얼비처리（T3）여반청후시얼비처리（T2）상비，분얼성수솔제고료9.09%（P＜0.05），성숙기전주간물질적루량증가4.50%~15.4%，제수기투광솔강저11.6%（P＜0.05），산량증가0.12~0.17 t·km-2，담소흡수이용솔제고12.3%~12.5%（P＜0.05）。당기비불시용담비시，기얼비우삽앙시시용처리（T5）여기얼비우반청후시용처리（T4）상비，성숙기전주간물질적루량증가4.67%~6.51%，산량증가0.12~0.49 t·km-2，담소흡수이용솔증가11.0%~11.1%（P＜0.05）。종합분석표명，당기비시용담비시，얼비재수도삽앙기시용효과최호；당기비불시용담비시，얼비재삽앙기시용효과호우반청기시용。
This study investigated the effects of the applied nitrogen at different stages on yield and fertilizer-N use efficiency of rice. The field experiment was conducted in two growing seasons(2011 and 2012)by using rice cultivar kongyu 131 and the randomized block design at 856 farm of Heilongjiang province. The results indicated that under the normal application of basal N rate,compared to applying tillering fertilizer after striking root stage (T2), the application of tillering fertilizer at transplanting stage(T3) substantially enhanced ear-bearing tiller rate of rice by 9.09%(P<0.05),increased dry matter accumulation of plant at mature stage by 4.50%-15.4%,reduced light transmittance after heading by 11.6%(P<0.05),increased yield of rice by 0.12-0.17 t·km-2,and significantly enhanced fertilizer-N recovery efficiency by 12.3%-12.5%(P<0.05). Compared to basal N rate and tillering fertilizer after striking root stage(T4),when the application was free of basal N rate,the application of basal N rate and tillering fertilizer at transplanting stage(T5)increased the dry matter accumulation of plant at mature stage by 4.67%-6.51%,increased the yield of rice by 0.12-0.49 t·km-2,and significantly enhanced fertilizer-N recovery efficiency by 11.0%-11.1%(P<0.05). Overall,the results of this study demonstrated that T3 was higher effective pattern than other treatments,and T5 was higher effective pattern than T4.
