[1]季诗域,王旭东,石思博,等.稻秆还田与化肥配施对稻茬麦田土壤肥力和小麦产量的影响[J].江苏农业学报,2020,(05):1181-1188.[doi:doi:10.3969/j.issn.1000-4440.2020.05.015]
 JI Shi-yu,WANG Xu-dong,SHI Si-bo,et al.Effects of rice-straw returning to the field and fertilizer application on soil fertility and wheat yield in rice stubble wheat field[J].,2020,(05):1181-1188.[doi:doi:10.3969/j.issn.1000-4440.2020.05.015]
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稻秆还田与化肥配施对稻茬麦田土壤肥力和小麦产量的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年05期
页码:
1181-1188
栏目:
耕作栽培·资源环境
出版日期:
2020-10-31

文章信息/Info

Title:
Effects of rice-straw returning to the field and fertilizer application on soil fertility and wheat yield in rice stubble wheat field
作者:
季诗域1王旭东1石思博2陈文博1叶正钱1任泽涛1刘璋1于振文3
(1.浙江农林大学环境与资源学院/浙江省污染土壤修复重点实验室,浙江杭州311300;2.南京农业大学资源与环境科学学院土壤生态实验室,江苏南京210095;3.山东农业大学农学院,山东泰安271001)
Author(s):
JI Shi-yu1WANG Xu-dong1SHI Si-bo2CHEN Wen-bo1YE Zheng-qian1REN Ze-tao1LIU Zhang1YU Zhen-wen3
(1.College of Environmental and Resource Science, Zhejiang Agricultural and Forestry University/Zhejiang Provincial Key Laboratory of Contaminated Soil Remediation, Hangzhou 311300, China;2.Soil Ecology Laboratory, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China;3.College of Agriculture, Shandong Agricultural University, Tai’an 271001, China)
关键词:
水稻秸秆稻茬麦地土壤肥力小麦产量
Keywords:
rice strawrice stubble wheat fieldsoil fertilitywheat yield
分类号:
S512.1+10.61
DOI:
doi:10.3969/j.issn.1000-4440.2020.05.015
文献标志码:
A
摘要:
在大田试验条件下,以水稻秸秆为研究对象,设置化肥水平(C)0、70%、100%,秸秆还田水平(S)0、50%、100%,共9个处理,研究不同秸秆还田量与化肥配施对不同时期土壤养分及冬小麦产量的影响。结果表明:在冬小麦的整个生育期内,秸秆还田与化肥配施能明显提高土壤有机质、碱解氮、速效钾含量,对土壤有效磷含量影响不大。其中处理S100C70对土壤有机质的积累效果最佳,处理S100C100对提高土壤碱解氮含量的能力最强,处理S50C70对提高土壤速效钾含量作用最大。在相同施肥水平下,秸秆还田会提高产量,但秸秆还田量并不是越大越好。在C70和C100水平下,冬小麦的穗长、株高、穗粒数、千粒质量等产量构成要素随秸秆还田量的增加而增加。相关分析结果显示土壤速效钾含量对提高小麦产量及其构成要素具有至关重要的作用。运用主成分分析方法找出3个主成分,综合得分排名第1、第2的处理分别为处理S50C100与处理S100C100,因此在本试验条件下,处理S50C100与处理S100C100可维持较高的土壤肥力且促进小麦增产,实现废弃秸秆还田资源化合理利用。
Abstract:
In this study, rice straw was used as the research object in field experiment. The fertilizer levels (C) were 0, 70% and 100%, and the straw returning levels (S) were 0, 50% and 100%. There were nine treatments. The effects of different combined application of straw and chemical fertilizers on soil nutrients and winter wheat yield in different were studied. The results showed that the combined application of straw and chemical fertilizers could significantly increase the contents of soil organic matter, available nitrogen and available potassium, but had little effect on soil available phosphorus content during the whole growth period of winter wheat. Among them, treatment S100C70 had the best accumulation effect on soil organic matter, treatment S100C100 had the strongest ability to improve the content of soil available nitrogen, and treatment S50C70 had the strongest effect on increasing soil available potassium content. Under the same fertilization level, straw returning would increase yield, but the amount of straw returning was not the higher the better. At C70 and C100 levels, the yield components of winter wheat, such as ear length, plant height, grain number per spike, and thousand-grain weight, increased with the increase of the amount of straw returning. Correlation analysis results showed that the content of soil available potassium played an important rde in increasing wheat yield and its components. Three principal components were identified by principal component analysis, and the results indicated that the comprehensive score of the S50C100 treatment was highest, and the second was S100C100 treatment. Therefore, based on this experiment conditions, the S50C100 treatment and the S100C100 treatment can maintain high soil fertility, promote wheat yield, and realize rational utilization of waste straw.

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备注/Memo

备注/Memo:
收稿日期:2020-03-03基金项目:国家自然科学基金项目(31601271);浙江省自然科学基金项目(LY16D010010)作者简介:季诗域(1996-),女,浙江衢州人,硕士研究生,主要从事土壤修复及农林废弃物资源化利用研究。(E-mail)1061386135@qq.com通讯作者:王旭东,(E-mail)wangxd@zafu.edu.cn
更新日期/Last Update: 2020-11-16