Study on the Temperature and Water Distribution of Hot Air in Red Loam Based on Soil Continuous Cropping Obstacles
Round 1
Reviewer 1 Report
Comments and Suggestions for AuthorsThe manuscript fits well into the scientific journal Agriculture.
Detailed comments are below;
Introduction
This part of the manuscript is written in a clear and interesting way. Data on chemical soil disinfection and steam disinfection could be added; on what scale this is happening.
Line 49-50
Can you specifically indicate the species or types of bacteria and fungi killed by steam disinfection?
Materials and Methods
I understand that the experiment was conducted in a laboratory, so it should be included in this section
Individual subchapters in the methodology are described sufficiently
4. Discussion
I suggest that the authors include more literature in the discussion, the authors only refer to 3 literature.
Comments on the Quality of English Languageminor
Author Response
Reviewer 1 ’s comments and suggestions
- Introduction
This part of the manuscript is written in a clear and interesting way. Data on chemical soil disinfection and steam disinfection could be added; on what scale this is happening.
Response 1：Thank you very much for giving us a suggestion and according to your request, we have modified it in line 43-52.
- Line 49-50
Can you specifically indicate the species or types of bacteria and fungi killed by steam disinfection?
Response 2：Thanks for the reviewer's suggestions and supplemented it in line 51.
- Materials and Methods
I understand that the experiment was conducted in a laboratory, so it should be included in this section. Individual subchapters in the methodology are described sufficiently.
Response 3：According to your request, we modified this part.
- Discussion
I suggest that the authors include more literature in the discussion, the authors only refer to 3 literature.
Response 4：According to your request, we have added more literatures in the discussion.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Comments and Suggestions for AuthorsDear authors,
Interesting research. However, before publication, the whole manuscript, including the abstract needs to be extensively edited and improved for English language and grammar.
Due to this problem, some key discussions do not make sense.
All the best
Comments for author File: Comments.pdf
Extensive English language editing required.
Author Response
Reviewer 2’s comments and suggestions
- Interesting research. However, before publication, the whole manuscript, including the abstract needs to be extensively edited and improved for English language and grammar.
Due to this problem, some key discussions do not make sense.
Response 1：Thank you very much for giving us a suggestion and according to your request, we have improved for English language and grammar. Revised portion are marked in blue in the paper.
- Define facility crops; fix table layout and format – spaces between density and bracket; improve photo quality-unclear
Response 2：According to your request, we have modified them in line 40-41, Table 1 and Figure 1.
Author Response File: Author Response.pdf
Reviewer 3 Report
Comments and Suggestions for AuthorsInteresting article. The results can be used in the future to develop knowledge on the effectiveness of thermal soil disinfection. The article is well edited and I would only point out a few things for correction:
Line:
46, 48, 50 – superfluous „-„ an text format mistake
76 - text written in the first person - change to the passive side, for example
87 – which “university”?
101,102 – what kind of procedure was used for loam separation (wet sieving?), what is the primary grain size distribution of soil tested?
Figure 9, 11 – there is no unit on Time axis – add unit [s]
I have also some general comments:
The model uses soil grains with a homogeneous structure. However, the natural soil has particles with a microporous structure (each particle consists of many small grains). Doesn't this natural structure modify the heat distribution in the medium under study?
It would be interesting to compare the results of the model analysis to the results of the experiment. Direct reference to such a comparison would make it possible to assess how well the numerical model can predict the phenomenon. It could be important for the future researches.
Author Response
Reviewer 3’s comments and suggestions
- Line: 46, 48, 50 – superfluous „-„ an text format mistake; 76 - text written in the first person - change to the passive side, for example; 87 – which “university”?
Response 1：Thanks for the reviewer's suggestions and according to your request, we have modified them in line 47,49,51;77;88-89.
- 101,102 – what kind of procedure was used for loam separation (wet sieving?), what is the primary grain size distribution of soil tested?
Response 2：We have modified them in line 102-105 and 88-89.
- Figure 9, 11 – there is no unit on Time axis – add unit [s].
Response 3：We appreciate the reviewer very much for your suggestions and we have modified them in Figure 9, 11.
4.The model uses soil grains with a homogeneous structure. However, the natural soil has particles with a microporous structure (each particle consists of many small grains). Doesn't this natural structure modify the heat distribution in the medium under study?
Response 4：Thank you very much for giving us a positive comment. In order to better study the soil pore structure, especially the effect of soil pore on the effect of hot air dehumidification, this paper divides the soil pore size and studies the heat and mass transfer law of hot air. The study found that the smaller the pores, the worse the effect of hot air dehumidification, just as this paper studied the micropores (control group <2 mm treatment). Therefore, we can infer that the more micropores, the worse the effect of hot air to remove moisture. It is also true that there are smaller pores in the soil in nature that affect the dehumidification and heat transfer of the hot air. In this regard, we actually don't want to have too small pores in the soil. Therefore, before steam disinfection and hot air dehumidification, we will spin till the soil to turn it into a suitable size of soil aggregates and suitable soil pores. Thanks for the reviewer's suggestions, we will also make supplementary explanations in the discussion and conclusion.
5.It would be interesting to compare the results of the model analysis to the results of the experiment. Direct reference to such a comparison would make it possible to assess how well the numerical model can predict the phenomenon. It could be important for the future researches.
Response 5：In this paper, the heat transfer model used in the previous research is used to study the hot air flow under different pore structure, it is helpful to the research of later experiment and to carry on the proof. As the reviewers said, it would be interesting to further compare the experimental results with the simulation results, but we found that the heat transfer model was partially deficient, and we will incorporate the reviewers’ suggestions, in the later stage, the model is further optimized to accurately simulate the actual hot air heat transfer.
Author Response File: Author Response.pdf
