基于作物和环境效应的最优施肥时长模型

IF 2.2 2区 农林科学 Q2 AGRICULTURAL ENGINEERING International Journal of Agricultural and Biological Engineering Pub Date : 2023-01-01 DOI:10.25165/j.ijabe.20231604.7408
Hui Wang, Wenpeng Shi, Wene Wang, Xiaotao Hu, Gang Ling, Rong Wei
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引用次数: 0

摘要

除草剂滴灌(化学灌溉)技术可以像灌溉技术一样精确控制除草剂的施用,减少对人类和环境的危害。然而,在不同长度滴灌带推进过程中,除草剂浓度不一致,不仅影响作物生长,而且造成除草剂残留。本研究探讨了化学施用对作物和环境的影响,采用高锰酸钾替代除草剂,并通过室内试验确定了最佳施用期限。在此基础上,进行了玉米地膜下化学施肥试验,比较了玉米生长指数、产量和除草剂残留对玉米生长的影响,确定了最佳化学施肥方式。结果表明:各处理间施用均匀性无显著差异,但连续施用(CA)玉米叶面积指数(LAI)、产量和双穗率显著高于周期施用(PA)和不施用(NA)。使用一个月后,两种模式的乙草胺残留量均小于1%,不会对周围环境造成污染。在相同乙草胺用量下,滴灌带长度与最佳施用时间存在显著的线性回归关系。关键词:施肥,灌溉方式,玉米,环境[DOI: 10.25165/ j.j ijabe.20231604.7408]引用本文:王辉,石文平,王文娥,胡小涛,凌光,魏锐。基于作物和环境效应的最优施肥持续时间模型。农业与生物工程学报,2023;16(4):每周
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Optimal chemigation duration model based on the crop and environment effects
Herbicides with drip irrigation (chemigation) could control the herbicides application accurately as the irrigation technology, and could reduce the harm to humans and the environment. However, the herbicide concentration is not consistent in the advancing process along the drip irrigation tape of different lengths, which not only influences the crop growth and results in herbicide residue. In this study, the crop and environmental effects of chemigation were discussed, potassium permanganate was used to replace herbicides, and a laboratory test was conducted to determine the best application duration. Based on this result, the maize field experiment of chemigation under plastic mulch was carried out to compare the effects of maize growth index, yield and herbicide residue for determining the optimal chemigation mode. The result shows that there is no significant difference in the application uniformity among treatments, but the leaf area index (LAI), yield, and double-ear rate of maize under continuous application (CA) were higher than those under periodic application (PA) and no application (NA) significantly. One month after the application, the acetochlor residue of the two modes was less than 1%, which would not cause pollution to the surrounding environment. And there was a significant linear regression relationship between the length of drip irrigation tape and the optimal application duration under the same acetochlor dosage. Keywords: chemigation, irrigation mode, maize, environment DOI: 10.25165/j.ijabe.20231604.7408 Citation: Wang H, Shi W P, Wang W E, Hu X T, Ling G, Wei R. An optimal chemigation duration model based on the crop and environment effects. Int J Agric & Biol Eng, 2023; 16(4): 41-50
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来源期刊
CiteScore
4.30
自引率
12.50%
发文量
88
审稿时长
24 weeks
期刊介绍: International Journal of Agricultural and Biological Engineering (IJABE, https://www.ijabe.org) is a peer reviewed open access international journal. IJABE, started in 2008, is a joint publication co-sponsored by US-based Association of Agricultural, Biological and Food Engineers (AOCABFE) and China-based Chinese Society of Agricultural Engineering (CSAE). The ISSN 1934-6344 and eISSN 1934-6352 numbers for both print and online IJABE have been registered in US. Now, Int. J. Agric. & Biol. Eng (IJABE) is published in both online and print version by Chinese Academy of Agricultural Engineering.
期刊最新文献
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