This paper develops a modelling system for adaptation support that can clarify the optimal genotype and cultivation management for maize cultivation under climate change in Romania. In recent years, research into climate change impact and its adaptation has advanced highly, and it has been becoming increasingly important to consider how to implement the findings of this research into society. The system developed in this paper is expected to be effectively used by the related stakeholders in Romania. However, there are some significant points that should be improved in this paper.　Firstly, although a sensitivity analysis was carried out on various factors in relation to yield, the developed system's predictive reality and effectiveness could not be fully convinced me due to the lack of explanation of the details of the processes considered by the crop model and the lack of sufficient biological background to the results.　Secondly, there are many basic mistakes throughout the paper, so I hope the authors will check it carefully.

[Specific comments]

3.a.1:How general is the index used in this study?

3.a.2:Without an explanation of the agrometeorological background in Romania, the importance of these indices is not understood.

Fig.5:

Please write the vertical axis of the graph. Though the meteorological data since 1976 were used, from what year were yield data obtained? Please illustrate the missing years so that they are clear (it seems that at least the years 1992, 93 and 94 are missing).

The prediction in 1995 does not seem to match the observations. What is the reason for this? The variability of the predictions seems to be greater than that of the observations. This would lead to over-underestimation in future predictions. Which of the 12 management scenarios is the closest to reality?

L423-425:I doubt whether it can be explained by rainfall. Yield is affected by various weather factors. For example, when the photosynthesis period is shortened due to a shortened growing season, the increase in biomass may not be sufficient.

L426-428:From Fig. 7c, it was not possible to confirm whether fertilizer efficiency decreases due to global warming.

L430-423:This may be due to an increase in photosynthetic products.

3.b.3:Is it practically possible to change N and C without adding fertilizer?

L483-4:Why does soil fertility delay maturity?

L492-3:I can't understand the sentence.

L516-520:Why were these six parameters chosen? What are the values of each? What is the validity of the values that were adopted?

[Minor comments]

It is better to explain what an abbreviation stands for when it first appears.

RCP45 and RCP85 → RCP4.5 and RCP8.5

Please standardize terminology (e.g. yield and harvest, sowing and planting)

Ｌ28:RCP scenario is an emission scenario, not a climate scenario.

L51:“)” is needed after Hatfield et al, 2021.

L56:“,” before Xie et al, 2023 is needed to be corrected to “;”.

L319:“;” after Miyawaki, 2024 is needed to be removed.

L361:peack→peak

L375:Yield→yield

L651:tis→this

Table1:I think that Fx0 is correct for Fertilazation in TR2 and 3.

Table1:I think that for the sowing date in TR2, 6 and 10 15.04 is correct.

In this manuscript, the authors describe a model system—including a graphical user interface (GUI)—that can be used to help decisionmakers understand what sort of crop planting practices will be optimal in the future. These practices include sowing date, fertilization level, and genotype selection. The latter is especially interesting, with the authors using a genetic algorithm in addition to a more deterministic method. The system is demonstrated for maize in Romania as a case study, but such tools are of much broader interest.

Unfortunately, the paper is hampered by poor organization, unclear use of language, and low-quality figures. An extensive rewrite is required to address everything from separating methods and results, to improving the way experiments are referenced, to more minor language and typo issues. I thus recommend this paper be reconsidered only after major revisions.

See attached PDF for detailed comments.