Effects of long-term full straw return on yield and potassium response in wheat-maize rotation
文献类型: 外文期刊
第一作者: Bai You-lu
作者: Bai You-lu;Wang Lei;Lu Yan-li;Yang Li-ping;Zhou Li-ping;Ni Lu;Cheng Ming-fang
作者机构:
关键词: straw return;potassium in straw;wheat;maize;potassium response
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2015 年 14 卷 12 期
页码:
收录情况: SCI
摘要: The effect of long-term straw return on crop yield, soil potassium (K) content, soil organic matter, and crop response to K from both straw and chemical K fertilizer (K2SO4) were investigated in a fixed site field experiment for winter wheat-summer maize rotation in 6 years for 12 seasons. The field experiment was located in northern part of North China Plain with a sandy soil in relatively low yield potential. Two factors, straw return and chemical K fertilizer, were studied with two levels in each factor. Field split design was employed, with two straw treatments, full straw return of previous crop (St) and no straw return, in main plots, and two chemical K fertilizer treatments, 0 and 60 kg K2O ha(-1), as sub-plots. The results showed that straw return significantly increased yields of Winter wheat and summer maize by 16.5 and 13.2% in average, respectively, and the positive effect of straw return to crop yield showed more effective in lower yield season. Straw return significantly increased K absorption by the crops, with significant increase in straw part. In treatment with straw return, the K content in crop straw increased by 15.9 and 21.8% in wheat and maize, respectively, compared with no straw return treatment. But, straw return had little effect on K content in grain of the crops. Straw return had significant influences on total K uptake by wheat and maize plants, with an increase of 32.7 and 30.9%, respectively. There was a significant correlation between crop yield and K uptake by the plant. To produce 100 kg grain, the wheat and maize plants absorbed 3.26 and 2.24 kg K2O, respectively. The contents of soil available K and soil organic matter were significantly affected by the straw return with an increase of 6.07 and 23.0%, respectively, compared to no straw return treatment. K2SO4 application in rate of 60 kg K2O ha(-1) showed no significant effect on wheat and maize yield, K content in crop straw, total K uptake by the crops, soil available K content, and soil organic matter. The apparent K utilization rate (percentage of applied K absorbed by the crop in the season) showed difference for wheat and maize with different K sources. In wheat season, the K utilization rate from K2SO4 was higher than that from straw, while in maize season, the K utilization rate from straw was higher than that from chemical fertilizer. In the whole wheat-maize rotation system, the K absorption efficiency by the two crops from straw was higher than that from K2SO4.
分类号:
- 相关文献
作者其他论文 更多>>
-
Molecular Characterization and Expression Analysis of SKIV Infection of Interferon-Induced Protein with Tetratricopeptide Repeats 1 (IFIT1) in Epinephelus lanceolatus
作者:Wang Lei;Ma Teng;Xu Wenteng;Chen Zhangfan;Zhou Qian;Zheng Guiliang;Chen Songlin;Ma Teng;Zheng Guiliang
关键词:interferon-induced protein with tetratricopeptide repeats 1 (IFIT1); Epinephelus lanceolatus; tetratricopeptide repeats (TPR) motif; expression pattern; antiviral function
-
Differentially expressed miRNAs in anthers may contribute to the fertility of a novel Brassica napus genic male sterile line CN12A
作者:Dong Yun;Wang Yi;Jin Feng-wei;Zhang Zheng-ying;Dong Yun;Xing Li-juan;Zou Jun-jie;Wang Lei;Xu Miao-yun;Fang Yen
关键词:Brassica napus L.; genic male sterility; miRNAs; targets; molecular regulation network
-
Nitrogen Nutrition Diagnostic Based on Hyperspectral Analysis about Different Layers Leaves in Maize
作者:Zhang Yin-jie;Wang Lei;Bai You-lu;Yang Li-ping;Lu Yan-li;Zhang Jing-jing;Li Ge
关键词:Maize leaf; Nitrogen Content; Spectral index; Diagnosis layer
-
iTRAQ-based analysis of 17 beta-estradiol induced proteome in Chinese tongue sole Cynoglossus semilaevis
作者:Zhu Ying;Li Yangzhen;Li Hailong;Wang Lei;Zhang Ning;Liu Yang;Meng Liang;Xu Xiwen;Dong Zhongdian;Wei Min;Guo Hua;Cui Zhongkai;Li Xihong;Shao Changwei;Xu Wenteng;Zhu Ying;Li Yangzhen;Li Hailong;Wang Lei;Zhang Ning;Liu Yang;Meng Liang;Xu Xiwen;Dong Zhongdian;Wei Min;Guo Hua;Cui Zhongkai;Li Xihong;Shao Changwei;Xu Wenteng;Li Hailong
关键词:Cynoglossus semilaevis; 17 beta-estradiol; sex reversal; proteome; iTRAQ analysis
-
Research Progress on Heat Stress of Rice at Flowering Stage
作者:Wang Yaliang;Zeng Yongjun;Shi Qinghua;Wang Yaliang;Wang Lei;Hu Shengbo;Chen Huizhe;Xiang Jing;Zhang Yikai;Zhu Defeng;Zhang Yuping;Zhou Jianxia
关键词:flowering stage; heat stress; spikelet fertility; high temperature; yield; variety
-
A Comparative Study on Hydrodynamic Performance of Double Deflector Rectangular Cambered Otter Board
作者:Xu Qingchang;Huang Liuyi;Xu Jiqiang;Liang Zhenlin;Tang Yanli;Zhao Fenfang;Wang Xinxin;Feng Chunlei;Wang Lei;Zhang Xun;Liang Zhenlin
关键词:wind tunnel experiment; flume tank experiment; numerical simulation; double deflector rectangular cambered otter board; hydrodynamic performance
-
Genome-Wide Survey and Expression Analysis of P-1B-ATPases in Rice, Maize and Sorghum
作者:Zhiguo, E.;Li Tingting;Wang Lei;Chen Chen
关键词:P-1B-type ATPase; rice; maize; sorghum; HMA gene family; expression pattern analysis