Wheat nitrogen use efficiency in a bed planting system in northwest Mexico

被引:77
作者
Limon-Ortega, A
Sayre, KD
Francis, CA
机构
[1] CIMMYT, Mexico City 06600, DF, Mexico
[2] Univ Nebraska, Lincoln, NE 68583 USA
关键词
D O I
10.1007/s100870050037
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Wheat (Triticum aestivum L.) in the Yaqui Valley, northwest Mexico, is planted as a winter crop using a raised-bed, furrow-irrigated system and high fertilizer N rates, Wheat residues are usually burned before planting maize (Zea mays L,) as a summer crop. The N use of wheat planted following conventional tillage using a raised-bed system (CTB) incorporating both wheat and maize residues was compared with wheat planted using permanent raised beds (PB) under four residue management treatments: all straw (wheat and maize) left as stubble, straw partly removed (maize residues removed; wheat residues retained), all straw removed, and all straw burned. Each wheat plot was split into seven N fertilizer (N-f) treatments: five applied at planting (0, 75, 150, 225, and 300 kg ha(-1)) and two at the Ist node stage (150 and 300 kg ha(-1)). Maize received a uniform N-f application of 150 kg ha(-1). The N use efficiency of wheat with 150 kg N-f ha(-1) at the Ist node stage was superior to basal applications at the same rate. Permanent bed-all straw left as stubble and PB-all straw burned had the highest average wheat grain yields (5.57 and 5.52 Mg. ha(-1), respectively), N use efficiency (28.2 and 29.1 kg grain kg(-1) of N supply, respectively), and total N uptake (133 and 137 kg ha(-1), respectively), Total N uptake for 150 and 300 kg N-f ha(-1) at the 1st node stage was 14 and 8% greater, respectively than at planting. In most tillage-straw treatments, 21% of the difference in wheat grain yields was due to the N supply component at low N rates; at high N rates, 97% was due to N use efficiency.
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页码:303 / 308
页数:6
相关论文
共 14 条
[1]  
[Anonymous], 6 CIMMYT
[2]   NITROGEN MANAGEMENT FOR SPRING WHEAT GROWN ANNUALLY ON ZERO-TILLAGE - YIELDS AND NITROGEN USE EFFICIENCY [J].
CAMPBELL, CA ;
ZENTNER, RP ;
SELLES, F ;
MCCONKEY, BG ;
DYCK, FB .
AGRONOMY JOURNAL, 1993, 85 (01) :107-114
[3]   LEAST SIGNIFICANT DIFFERENCES FOR COMBINED ANALYSES OF EXPERIMENTS WITH 2-FACTOR OR 3-FACTOR TREATMENT DESIGNS [J].
CARMER, SG ;
NYQUIST, WE ;
WALKER, WM .
AGRONOMY JOURNAL, 1989, 81 (04) :665-672
[4]   NITROGEN EFFICIENCY COMPONENT ANALYSIS - AN EVALUATION OF CROPPING SYSTEM DIFFERENCES IN PRODUCTIVITY [J].
HUGGINS, DR ;
PAN, WL .
AGRONOMY JOURNAL, 1993, 85 (04) :898-905
[5]   A CLASSIFICATION-SYSTEM FOR FACTORS AFFECTING CROP RESPONSE TO NITROGEN-FERTILIZATION [J].
LORY, JA ;
RUSSELLE, MP ;
RANDALL, GW .
AGRONOMY JOURNAL, 1995, 87 (05) :869-876
[6]  
Mead R., 1993, Statistical Methods in Agriculture and Experimental Biology, V2nd
[7]   ANALYSIS AND INTERPRETATION OF FACTORS WHICH CONTRIBUTE TO EFFICIENCY OF NITROGEN-UTILIZATION [J].
MOLL, RH ;
KAMPRATH, EJ ;
JACKSON, WA .
AGRONOMY JOURNAL, 1982, 74 (03) :562-564
[8]   AN EXTENDED MODEL OF FORAGE GRASS RESPONSE TO APPLIED NITROGEN [J].
OVERMAN, AR ;
WILKINSON, SR ;
WILSON, DM .
AGRONOMY JOURNAL, 1994, 86 (04) :617-620
[9]   STUBBLE BURNING EFFECTS ON WINTER-WHEAT YIELD AND NITROGEN-UTILIZATION UNDER SEMIARID CONDITIONS [J].
RASMUSSEN, PE ;
ROHDE, CR .
AGRONOMY JOURNAL, 1988, 80 (06) :940-942
[10]   USE OF STABILITY ANALYSIS FOR LONG-TERM SOIL FERTILITY EXPERIMENTS [J].
RAUN, WR ;
BARRETO, HJ ;
WESTERMAN, RL .
AGRONOMY JOURNAL, 1993, 85 (01) :159-167