| 保水型专用肥对制种玉米田土壤蓄水量的影响及最佳施肥量研究 |
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| 引用本文： | 闫治斌,秦嘉海,王爱勤,肖占文,赵芸晨,程红玉,赵静.保水型专用肥对制种玉米田土壤蓄水量的影响及最佳施肥量研究[J].水土保持通报,2013(4):200-205. |
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| 作者姓名： | 闫治斌 秦嘉海 王爱勤 肖占文 赵芸晨 程红玉 赵静 |
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| 作者单位： | 河西学院农业与生物技术学院, 甘肃 张掖 734000;甘肃敦煌种业股份有限公司, 甘肃 酒泉 735000;河西学院农业与生物技术学院, 甘肃 张掖 734000;甘肃高校河西走廊特色资源利用省级重点实验室, 甘肃 张掖 734000;中国科学院兰州化学物理研究所, 甘肃 兰州 731000;河西学院农业与生物技术学院, 甘肃 张掖 734000;甘肃高校河西走廊特色资源利用省级重点实验室, 甘肃 张掖 734000;河西学院农业与生物技术学院, 甘肃 张掖 734000;甘肃高校河西走廊特色资源利用省级重点实验室, 甘肃 张掖 734000;河西学院农业与生物技术学院, 甘肃 张掖 734000;甘肃高校河西走廊特色资源利用省级重点实验室, 甘肃 张掖 734000;河西学院农业与生物技术学院, 甘肃 张掖 734000;甘肃高校河西走廊特色资源利用省级重点实验室, 甘肃 张掖 734000 |
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| 基金项目： | 科技部国家星火项目“甘肃河西走廊百万亩现代化制种及加工装备技术示范推广”(S2011G100031);科技部国家十二五支撑计划“玉米、棉花、油菜新品种规模化制种基地建设”(2011BAD35B10);甘肃高等学校2010年研究生导师科研项目(1009B-05);甘肃高校河西走廊特色资源利用省级重点实验室项目(XZ1002) |
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| 摘 要： | 在甘肃省河西内陆灌区的制种玉米田,采用田间试验方法,研究了保水型专用肥对土壤物理性质和蓄水量的影响及制种玉米田最佳施肥量。结果表明,影响玉米产量的因素由大到小依次为:CO(NH2)2>(NH4)2HPO4>糠醛渣>保水剂>ZnSO4·7H2O;因素间最佳组合为:CO(NH2)2600kg/hm2,(NH4)2HPO4350kg/hm2,ZnSO4·7H2O 30kg/hm2,保水剂19.98kg/hm2,糠醛渣15 000kg/hm2。保水型专用肥施肥量与玉米制种田容重呈负相关关系,与孔隙度、蓄水量、玉米植物学性质和经济性状呈正相关关系。随着保水型专用肥施用量梯度的增加,玉米穗粒数、穗粒重、百粒重、产量在增加,但边际产量、边际利润表现为递减,保水型专用肥施用量在10.00t/hm2的基础上再增加2.50t/hm2,收益出现负值。经回归统计分析,保水型专用肥施用量与玉米产量可用一元二次方程拟合,经济效益最佳施肥量为9.99t/hm2,玉米的理论产量为6 715.33kg/hm2。
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| 关 键 词： | 保水型专用肥 物理性质 土壤蓄水量 最佳施肥量 |
| 收稿时间： | 2012/8/16 0:00:00 |
| 修稿时间： | 2012/11/21 0:00:00 |
Effects of Water-retaining Fertilizer on Soil Water Storage Capacity and Optimal Fertilization |
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| YAN Zhi-bin,QIN Jia-hai,WANG Ai-qin,XIAO Zhan-wen,ZHAO Yun-chen,CHENG Hong-yu and ZHAO Jing.Effects of Water-retaining Fertilizer on Soil Water Storage Capacity and Optimal Fertilization[J].Bulletin of Soil and Water Conservation,2013(4):200-205. |
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| Authors: | YAN Zhi-bin QIN Jia-hai WANG Ai-qin XIAO Zhan-wen ZHAO Yun-chen CHENG Hong-yu and ZHAO Jing |
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| Institution: | Department of Agriculture and Biologic Technology of Hexi College, Zhangye, Gansu 734000, China;Gansu Dunhuang Seed Co. Ltd., Jiuquan, Gansu 735000, China;Department of Agriculture and Biologic Technology of Hexi College, Zhangye, Gansu 734000, China;Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu 731000, China;Department of Agriculture and Biologic Technology of Hexi College, Zhangye, Gansu 734000, China;Department of Agriculture and Biologic Technology of Hexi College, Zhangye, Gansu 734000, China;Department of Agriculture and Biologic Technology of Hexi College, Zhangye, Gansu 734000, China;Department of Agriculture and Biologic Technology of Hexi College, Zhangye, Gansu 734000, China |
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| Abstract: | By field experiment,the effect of water retaining fertilizer on soil properties and the optimal fertilization were studied in Hexi Corridor.The result showed that the effect of factors which influenced corn yield was:CO(NH2)2>(NH4)2HPO4>furfural residue>water retaining fertilizer>ZnSO4·7H2O.The optimal factor combination was:CO(NH2)2600kg/hm2,(NH4)2HPO4350kg/hm2,ZnSO4·7H2O 30kg/hm2, water retaining fertilizer 19.98kg/hm2,and furfural residue 15 000kg/hm2.Dosage of fertilizer was negatively correlated with soil bulk density,and positively correlated with porosity,water storage capacity,botany and economic properties of corn.Corn grain number,grain weight,and corn yield increased with the amount of fertilizer application,but the marginal output decreased.The regression equation of quadratic equation on fertilizer dosage and yield was provided.The optimal fertilization was 9.99t/hm2. |
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| Keywords: | water retention type fertilizer physical properties soil water storage best fertilizer rates |
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