Straw Removal Effects on Sugarcane Root System and Stalk Yield
, Maurício R. Cherubin 2, Tamara C. A. Gomes 3, Izaias P. Lisboa 2, Lucas S. Satiro 2, Carlos E. P. Cerri 2 and Marcos Siqueira-Neto 1,4Round 1
Reviewer 1 Report
Review Melo et al. – Agronomy 2020
Line 22: typing error : .;
Lines 75-77: unclear informations for temperature (average annual temperature / mean temperature
Line 78: syntax
Line 78: sandy
Line 80: …[29]. This
Fig. 1: top right=> 88 ?
Table 1: Sand instead of Sandy
Line 95-96: syntax
Line 106-107: Diameter and length of auger should be added
Line 107-108: How is the sampling position, especially for points A-C, related to wheeling tracks? Important for results.
Line 115: VolA1 a? VolA2
Line 115: How is soil volume in the region of influence … defined and calculated?
Line 116-117: unclear=> 0.20m deep layer. Only depth of 0-20cm? Or thickness of the layer(s)?
4 depths are sampled within one auger or stepweise?
Line 126ff: soil penetration resistance => shortcut SRP or SPR?
Size and shape of penetrometer should be added. Relevant for level of measured values.
Fig. 2: Position of wheeling tracks?
Line 159-160: Discrapancy for R² for 0-20 cm=> 0.73 in line 160 but only 0.54 in Fig. 3
Line 160ff: limited significance => R² around 0.5
Fig. 5: different shortcuts => yRP and yPR (see line 126ff)
Fig. 5B: R² = 0,82 for yRd?
Line 232: 0to 80 cm
Line 252ff: To comprehend the comparing of penetration resistance levels of different investigations/papers additional informations are needed about related soil wetness and shape and size of penetrometer.
Line 281: root distribution and mass?!
Author Response
Please see the attachment
Author Response File: 
Author Response.pdf
Reviewer 2 Report
The manuscript describing effect on straw removal on sugarcane yield and roots and in Capivari, Sao Paulo Brazil with the objective of using straw to generate by product without damaging cane yield. The study made with four levels of straw removal during one cane crop cycle is quite limit for studying effect where environment is implicated. However, the results are well discussed and compared to formal works realized in other localities.
Some missing dates in the paper need to be precise for a better comprehension of the results. I have also made some propositions for editorial corrections (see attached file)
Comments for author File: Comments.pdf
Author Response
Please see the attachment
Author Response File: Author Response.pdf
