深松配施有机肥对土壤性状及玉米生长的影响  

Effects of Subsoiling Combined with Organic Fertilizer on Soil Characteristics and Maize Growth

作　　者：闫百莹 孙跃春[1] 谢秀芳 张德伟 王广成 王鹏[1] YAN Bai-ying;SUN Yue-chun;XIE Xiu-fang;ZHANG De-wei;WANG Guang-cheng;WANG Peng(Heilongjiang Bayi Agricultural University,Daqing 163391,PRC;Zhaozhou County Agricultural Technology Extension Center of Daqing City,Zhaozhou 166400,PRC)

机构地区：[1]黑龙江八一农垦大学,黑龙江大庆163391 [2]大庆市肇州县农业技术推广中心,黑龙江肇州166400

出　　处：《湖南农业科学》2020年第1期24-27,共4页Hunan Agricultural Sciences

基　　金：国家重点研发计划重点专项(2018YFD0300101-2)。

摘　　要：试验研究了深松配施有机肥条件下土壤含水量、容重的变化,分析了玉米植株干物质积累变化规律,以期为生产中选择适宜的耕作方式提供理论依据。试验在田间条件下,设置常规耕作(T1,即CK)、深松(T2)、深松+有机肥(T3)3个处理,3次重复。结果表明:T3在拔节期0~10cm、10~20cm土层含水量分别提高了1.23和0.66个百分点;T3显著降低了0~20cm土层的土壤容重,其中灌浆期10~20cm土层T3比对照降低了10.24%;T3根系、地上部干物质积累量、产量分别比对照提高了88.72%、69.02%和28.79%,差异显著;T3株高比对照提高了2.11%,无显著差异。综合分析认为,玉米栽培实践中深松配施有机肥对改善土壤物理性状和促进玉米生长、产量提高的效果优于深松和常规耕作。The experiment studied the change of soil moisture and bulk density by applying organic fertilizer in combination with subsoiling,and analyzed the change rule of dry matter accumulation of maize plant,in order to provide theoretical basis for selecting suitable cultivation methods in production.Under the field conditions,the experiment was conducted in three treatments:conventional tillage (T1,CK),subsoiling (T2),subsoiling with organic fertilizer (T3),and repeated for three times.The results showed that T3 increased the soil moisture content of 0-10 cm and 10-20 cm soil layers by 1.23% and 0.66% respectively at the jointing stage;T3 significantly reduced the soil bulk density of 0-20 cm soil layer,particularly decreased the soil bulk density of 10-20 cm soil layers by 10.24% at filling stage compared with the control;the dry matter accumulation of T3 root system and aboveground part,and grain yield was increased by 88.72%,69.02% and 28.79%,respectively,reaching a significant difference in comparison with the control;T3 plant height increased by 2.11% compared with the control,with no significant difference.The comprehensive analysis shows that the effect of applying organic fertilizer in combination with subsoiling is better than each of conventional tillage and subsoiling in improving soil physical properties,promoting maize growth and yield.

关 键 词：深松 有机肥 土壤性状 玉米 干物质积累 

分 类 号：S155[农业科学—土壤学]