Soil Nitrogen Distribution and Plant Nitrogen Utilization in Direct-Seeded Rice in Response to Deep Placement of Basal Fertilizer-Nitrogen

被引:28
作者
Wang Danying [1 ]
Ye Chang [1 ]
Xu Chunmei [1 ]
Wang Zaiman [2 ]
Chen Song [1 ]
Chu Guang [1 ]
Zhang Xiufu [1 ]
机构
[1] China Natl Rice Res Inst, State Key Lab Rice Biol, Hangzhou 310006, Zhejiang, Peoples R China
[2] South China Agr Univ, Minist Educ, Key Lab Key Technol Agr Machine & Equipment, Guangzhou 510642, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
direct-seeded rice; nitrogen fertilizer; deep placement; soil nitrogen distribution; nitrogen utilization; WETLAND RICE; AMMONIA VOLATILIZATION; IRRIGATED RICE; USE EFFICIENCY; LOWLAND RICE; SURFACE APPLICATION; UREA SUPERGRANULES; PRILLED UREA; PADDY FIELDS; GRAIN-YIELD;
D O I
10.1016/j.rsci.2018.12.008
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Deep placement of controlled-release fertilizer increases nitrogen (N) use efficiency in rice planting but is expensive. Few studies on direct-seeded rice have examined the effects of deep placement of conventional fertilizer. With prilled urea serving as N fertilizer, a two-year field experiment with two N rates (120 and 195 kg/hm(2)) and four basal N application treatments (B50, all fertilizer was broadcast with 50% as basal N; D50, D70 and D100 corresponded to 50%, 70% and 100% of N deeply placed as basal N, respectively) were conducted in direct-seeded rice in 2013 and 2014. Soil N distribution and plant N uptake were analyzed. The results showed that deep placement of basal N significantly increased total N concentrations in soil. Significantly greater soil N concentrations were observed in D100 compared with B50 at 0, 6 and 12 cm (lateral distance) from the fertilizer application point both at mid-tillering and heading stages. D100 presented the highest values of dry matter and N accumulation from seeding to mid-tillering stages, but it presented the lowest values from heading to maturity stages and the lowest grain yield for no sufficient N supply at the reproductive stage. The grain yield of D50 was the highest, however, no significant difference was observed in grain yield, N agronomic efficiency or N recovery efficiency between D70 and D50, or between D70 and B50, while D70 was more labor saving than D50 for only one topdressing was applied in D70 compared with twice in other treatments. The above results indicated that 70% of fertilizer-N deeply placed as a basal fertilizer and 30% of fertilizer-N topdressed as a panicle fertilizer constituted an ideal approach for direct-seeded rice. This recommendation was further verified through on-farm demonstration experiments in 2015, in which D70 produced in similar grain yields as B50 did.
引用
收藏
页码:404 / 415
页数:12
相关论文
共 50 条
[1]  
Bulbule A. V., 2005, Journal of Maharashtra Agricultural Universities, V30, P259
[2]  
Buresh R.J., 2008, Nitrogen in Agricultural Systems, P401, DOI [10.2134/agronmonogr49.c11, DOI 10.2134/AGRONMONOGR49.C11]
[3]   N-15 BALANCE AND RESIDUAL EFFECTS OF UREA-N IN WETLAND RICE FIELDS AS AFFECTED BY DEEP PLACEMENT TECHNIQUES [J].
CAO, ZH ;
DEDATTA, SK ;
FILLERY, IRP .
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1984, 48 (01) :203-208
[4]   Opportunities for increased nitrogen-use efficiency from improved resource management in irrigated rice systems [J].
Cassman, KG ;
Peng, S ;
Olk, DC ;
Ladha, JK ;
Reichardt, W ;
Dobermann, A ;
Singh, U .
FIELD CROPS RESEARCH, 1998, 56 (1-2) :7-39
[5]  
CHALAM AB, 1989, INDIAN J AGR SCI, V59, P400
[6]   Nutrition Accumulation, Remobilization, and Partitioning in Rice on No-Tillage Soil [J].
Chen, Song ;
Xia, Guomian ;
Zhang, Guoping .
JOURNAL OF PLANT NUTRITION, 2008, 31 (11) :2044-2058
[7]  
Chen X., 2014, SHUIZIYUAN BAOHU, V30, P1, DOI DOI 10.3969/j.issn.1004-6933.2014.02.001
[8]   Nitrogen fertilizer losses from rice soils and control of environmental pollution problems [J].
Choudhury, ATMA ;
Kennedy, IR .
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 2005, 36 (11-12) :1625-1639
[9]  
Datta S. K. de, 1989, Advances in Soil Science, V10, P143
[10]  
DeDatta SK, 1995, FERT RES, V42, P193, DOI 10.1007/BF00750514