基于高光谱的膜下滴灌小麦氮素营养评价研究

通过小麦氮素和品种对比试验, 分析不同氮素和品种处理小麦生育期氮肥偏生产力与光谱参数的相关关系, 建立小麦氮肥偏生产力的光谱参数估算模型, 结果表明绿度植被指数（GREENNDVI）在拔节期与小麦氮肥偏生产力呈极显著相关, 相关系数0.640　4。　用GREENNDVI在拔节期建立小麦氮肥偏生产力的估算模型, 均方根误差0.459　7。研究表明利用光谱参数可以有效地估算小麦氮肥偏生产力。

Abstract

The accurate wheat management needs a reasonable nitrogen application, and it is one of the key measures for real-time and quantitatively monitoring of nitrogen status to gain the higher yield of wheat. In the present study, two field experiments were conducted with different nitrogen stress and wheat cultivars, the relationship was analyzed between spectral parameters and the partial factor productivity from applied N (PFPn), and the estimating model was established for PFPn in the growth stages of wheat. The result indicated that there was a highly significant correlation between the PFPn and GreenNDVI at jointing, the correlation coefficient (r) was 0.640 4, the estimating model of PFPn was established, and the root mean square errors(RMSE) was 0.459 7. The result indicated that the PFPn can be effectively estimated by using spectral parameters.

参考文献

[1] YANG Jian-chang, WANG Zhi-qin, ZHU Qing-sen(杨建昌, 王志琴, 朱庆森). Scientia Agricultura Sinica(中国农业科学), 1996, 29(4): 58.

[2] CAO Zhi-hong(曹志洪). Soil(土壤), 1998, 30: 57.

[3] Charles A S, Charles S W. Agronomy Journal, 2006, 98: 529.

[4] SUN Peng-li, WANG Hui-jun(孙彭力, 王慧君). Environmental Pollution & Control(环境污染与防治), 1995, 17(1): 38.

[5] WANG Kang(王康). Study of Nitrogen Transport in the SPAC System and Its Impact on Crop Yield and Environment Pollution under Water-Saving Irrigation Conditions(节水条件下SPAC系统氮素迁移与作物增产和环境效应的研究). Wuhan: Wuhan University(武汉: 武汉大学), 2002.

[6] KONG Dong, YAN Yun, DUAN Yan, et al(孔东, 晏云,　段艳, 等). Transactions of the Chinese Society of Agricultural Engeering(农业工程学报), 2008, 24(12): 36.

[7] May L, van Sanford D A, Mackown C T, et al. Crop. Science, 1991, 31: 626.

[8] Garabet S, Ryan J, Wood M. Field Crops Research, 1998, 58: 213.

[9] Cassman K G, Gines G C, Dizon M A, et al. Fields Crops Research, 1996, 47: 1.

[10] Mathias B, David E J. Field Crops Research, 1999, 60: 201.

[11] LI Shu-wen, WEN Hong-da, ZHOU Yan-zhen, et al(李淑文, 文宏达, 周彦珍, 等). Scientia Agricultura Sinica(中国农业科学), 2006, 39(10): 1992.

[12] MA Xing-hua, YU Zhen-wen, LIANG Xiao-fang, et al(马兴华, 于振文, 梁晓芳, 等). Plant Nutrition and Fertilizer Science(植物营养与肥料学报), 2006, 12(2): 150.

[13] ZHANG Fu-suo,WANG Ji-qing, ZHANG Wei-feng, et al(张福锁, 王激清, 张卫峰, 等). Acta Pedologica Sinica(土壤学报), 2008, 45(5): 915.

[14] XUE Li-hong, CAO Wei-xing, LUO Wei-hong, et al(薛利红, 曹卫星, 罗卫红, 等). Chinese Journal of Plant Ecology(植物生态学), 2004, 28(1): 47.

[15] Kokaly R F. Remote Sensing of Environment, 2001, 75: 153.

[16] Raja Reddy K, Satyasai Kumar Matcha. Industrial Crops and Products, 2010, 32: 411.

[17] Tian Y C, Yao X, Yang J, et al. Field Crops Research, 2011, 120: 299.

[18] SUN Xue-mei, ZHOU Qi-fa, HE Qiu-xia(孙雪梅, 周启发, 何秋霞). Acta Agronomica Sinica(作物学报), 2005, 31(7): 844.

[19] CUI Zhen-ling, SHI Li-wei, XU Jiu-fei, et al(崔振岭, 石立委, 徐久飞, 等). Chinese Journal of Applied Ecology(应用生态学报), 2005, 16(11): 2071.

[20] Li F, Gnyp M L, Jia L L, et al. Field Crops Research, 2008, 106: 77.

刁万英, 李少昆, 王克如, 金秀良, 王方永, 陈兵, 王琼, 王楷, 肖春华. 基于高光谱的膜下滴灌小麦氮素营养评价研究[J]. 光谱学与光谱分析, 2012, 32(5): 1362. DIAO Wan-ying, LI Shao-kun, WANG Ke-ru, JIN Xiu-liang, WANG Fang-yong, CHEN Bing, WANG Qiong, WANG Kai, XIAO Chun-hua. Estimated Nitrogen Nutrition Index Based on the Hyperspectral for Wheat of Drip Irrigation under Mulch[J]. Spectroscopy and Spectral Analysis, 2012, 32(5): 1362.

基于高光谱的膜下滴灌小麦氮素营养评价研究

关于本站 Cookie 的使用提示

全站搜索

基于高光谱的膜下滴灌小麦氮素营养评价研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索