Somaiya

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Karnataka Institute of Applied Agricultural Research

Crop : Sugarcane.

Field : Agronomy.

Collaborator : Self.

Title : All the year round planting

Author : A.L. Sarpotdar,R.S. Sachan,R.G.Menon and H.L.Kulkarni.

Year : 1975

The main object of the experiment is to find out whether cane of acceptable quality can be made available to sugar factory for a longer time than at present by spreading the planting time and if possible to what extent.

A planting plan at fortnightly intervals, commencing form 1st July 1974 was adopted. Each planting was replicated 3 times.

Replications - 3

Size of plot : 34 sq. meters with 4 rows each.

Varieties : Co 740 and Co 6415.

From the 10th month awards, juice analysis were made.
Data are furnished in Table No. 12 and 13.

Table 12. Showing peak recovery months in the two varieties of sugarcane (vide All the year round planting expt.)

		Peak recovery at the age of months
		Co 740									Co 6415
No.	Treatment	10	11	12	13	14	15	16	17	18	10	11	12	13	14	15	16	17	18
1	1st Aug.74 planting.							12.32											12.78
2	16th -do-									12.70								13.41
3	1st Sept. -do-								12.13									13.41
4	16th -do-						12.70											13.21
5	1st Oct. -do-								12.70								13.40
6	16th -do-							13.08									13.30
7	1st Nov. -do-						12.51									13.41
8	16th -do-						12.77								12.68
9	1st Dec. -do-					12.77										13.10
10	16th -do-					12.29									12.62
11	1st Jan. 75 -do-				12.54										12.85
12	16th -do-				12.07									12.30
13	1st Feb. 75 -do-			12.96										12.53
14	16th -do-			12.24								12.77
15	1st March -do-		12.23
16	16th -do-		12.29									12.53

Table 13. Showing peak recovery months of sugarcane varieties Co 740 & Co 6415 (Vide all the year round planting experiment)

		Co 740			Co 6415
Sl.No.	Treatments	Peak recovery months	Recovery	Age in months	Peak recovery months	Recovery	Age in months
1	1st Aug. 74 planting	December 75	12.32	16	March 76	12.78	19
2	16th " "	February 76	12.70	18	February 76	13.41	18
3	1st Sept.-74 "	February 76	12.13	17	March 76	13.44	18
4	16th " "	December 75	12.70	15	March 76	31.21	18
5	1st October-74 "	March 76	12.70	17	March 76	13.40	17
6	16th " "	February 76	13.08	16	March 76	13.30	17
7	1st Nov. 74 "	February 76	12.51	15	March 76	13.41	16
8	16th " "	February 76	12.77	15	February 76	13.44	15
9	1st Dec. 74 "	February 76	12.77	14	February 76	12.68	14
10	16th " "	February 76	12.29	14	March 76	13.10	15
11	1st Jan. 75 Planting	February 76	12.54	13	March 76	12.62	14
12	16th " "	February 76	12.07	13	March 76	12.85	14
13	1st Feb. 75 "	February 76	12.96	12	March 76	12.30	13
14	16th " "	February 76	12.24	12	March 76	12.53	13
15	1st March-75 "	February 76	12.23	11	February 76	12.77	11
16	16th " "	April 76	12.29	13	April 76	12.53	13

Results:

Results of all the year round expt. -

1. August planted cane attained peak recovery at 16 to 18 months of age where as March planted cane recorded peak recovery at 11 to 12 months age of the crop in both the varieties viz. Co 740 and Co 6415.

2. As expected peak recovery was recorded between February and March in both the varieties in all the treatments (except April, May and June planted cane) irrespective of the date of planting. Thereafter there was drop in the N.R values. However this drop in N.R. started earlier in Co 740 than Co 6415.

3. In general peak recovery value was higher in Co 6415 than that of Co 740. In Co 6415 peak recovery was recorded little later than Co 740.

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