不同土体剖面构型对水稻生长与产量的影响  

Effects of Different Soil Profile Configuration on Growth and Yield of Rice

作　　者：王启龙 蔡苗[1,2] 宁松瑞[1,2] 

机构地区：[1]陕西省土地工程建设集团有限责任公司,陕西地建土地工程技术研究院有限责任公司 [2]国土资源部退化及未利用土地整治重点实验室,陕西省土地整治工程技术研究中心,陕西西安710075

出　　处：《现代农业科技》2017年第16期11-13,16,共4页Modern Agricultural Science and Technology

基　　金：陕西省土地工程建设集团内部科研项目(DJNY2017-17)

摘　　要：为探明韩城下峪口不同土体剖面构型对旱稻生长及产量的影响,2016年在陕西省富平县中试基地开展了5种土体剖面构型对于水稻生长及产量影响的试验。结果表明,不同处理的土壤耕层水分含量在不同时期有差异,各处理间表现为容重1.8 g/cm3的黄土>1∶3的粉煤灰和沙>1∶2的粉煤灰和沙>容重1.2 g/cm3的黄土>容重1.8 g/cm3的沙土。不同土体剖面构型影响水稻的株高、分蘖以及产量。水稻株高、分蘖、产量在处理间表现为1∶2的粉煤灰和沙>容重1.8 g/cm3的黄土>1∶2的粉煤灰和沙>容重1.2 g/cm3的黄土>容重1.8 g/cm3的沙土。水稻收获后测定的土壤养分指标的大小趋势也是如此。本试验表明,韩城下峪口土地整治项目区需要进行土体有机重构,综合考虑工程成本和整治效果,适宜参考1∶2的粉煤和沙处理的土体剖面构型。In order to investigate effects of soil profile configuration on growth and yield of rice, related experiments were carried out at Fuping Pilot-base. The results were as follows ： the soil water contents of different treatments showed differences,with the values as volumetric loess with bulk density 1.8 g/cm^3〉fly ash and sand with scale was 1：3〉fly ash and sand with scale was 1：2〉loess with bulk density 1.2 g/cm^3〉sand with bulk density 1.8 g/cm^3.Different soil profiles configuration affected the plant height, tillering and yield. The variation order between plant height, filleting and yield among different treatments was fly ash and sand with scale was 1：2〉loess with bulk density 1.8 g/cm^3〉fly ash and sand with scale was 1：3〉loess with bulk density 1.2 g/cm^3〉sand with bulk density 1.8 g/cm^3. The trend of soil nutrient after the harvest of rise was similar to the above. Thus ,land organic reconstruction to be did in Hancheng Xiayukou land remediation project area. Based on the comprehensive consideration of the project cost and effectiveness,the soil profile configuration suggested By ash and sand with scale was 1：2.

关 键 词：水稻 剖面构型 生长 产量 

分 类 号：S282[农业科学—农业水土工程] S511[农业科学—农业工程]