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Trial: Humifirst WG Broccoli
Crop: Broccoli var. aurora
Product: Humifirst WG
Location: Clifton, QLD
Aim: Increase Yield, Roots & Uniformity
Rate: 2 kg /ha, commercial sized blocks
Application: Drip application
Timing: 21 DAT
Transplanting Date: 4/01/2018, 1st Harvest 31/03/2018
Assessment: Visual assessment, measurements
Results – Visual (23/3/18)
Control Humifirst WG
4 2
16 18
18
3016
86 2
0%
50%
100%
Control Humifirst WG
55 mm 20 mm 10 mm 5 mm zero
+ 42 %
Results – Head Diameter (23/3/18)
+ 66 %
-50 %
+ 12.5 %
A more even crop is clearly evident
Undersized heads are reduced by -62%including blank heads reduced by -66%
Heads in the desired category +42%
Heads in the oversize category -50%
The crop is developing more evenly which will lead to a more even harvest
- 66 %
- 50 %- 62 %
Results – Pre Harvest Assessment, 7-10 days before harvest
89
60
143
72
40
100
160
Head Weight (g) Head Diameter (mm)
+ 60 %*
+ 6.7 %*
*Sig. P <0.05
31.9
33.8
25
30
35
Butt Diameter (mm)
Control Humifirst WG
+ 6 %*
Results – Pre Harvest Assessment, 7-10 days before harvest
2.18
10.15
2.55
11.86
0
6
12
Total Head Weight (kg) Total Foliage Weight (kg)(without heads)
+ 17 %
+ 17 %
Results – Average Head Weight and Diameter at 1st cut
263
111
328
125
50
200
350
Head Weight (g) Head Diameter (mm)
+ 25 %*
+ 13 %*
Control
Humifirst WG
*Sig. P <0.001
The farmer selected the heads at random to ensure independence of the data
Results – % Percent of Heads left after each harvest
62
28
53
20
0
25
50
75
% of Heads left after 1st cut % of Heads left after 2nd cut
Control Humifirst WG
After each cut, 100 plants in a row were counted 12 times and the number of heads left was calculated
After First Cut: 38 % of heads were cut in the control compared to
47 % heads in Humifirst Treatment (+24%) Which equates to an increase 24 % more heads cut
after the 1st cut
After Second Cut: 72 % of total heads were cut in the Control
compared to 80% of heads in the Humifirst Treatment (+11%)
+ 24 %
+ 11 %
Results – Total Yield (Bins /2.4 Ha)
16
24 24
32
28
1110
25
40
Total bins after 1stCut
Total bins after2nd Cut
Total bins after 3rdCut
Control Humifirst WG
64
71
50
65
80
Total Bins
Control Humifirst WG
+ 11 %+ 100 %
+ 17 %
- 117 %
Results – Brute Yield (T /ha)
0.84
1.27 1.27
1.69
1.48
0.58
0
1
2
Yield at 1st Cut Yield at 2nd Cut Yield at 3rd Cut
Control Humifirst WG
3.38
3.75
3
3.5
4
Total T /ha
Control Humifirst WG
+ 11 %+ 100 %
+ 17 %- 117 %
1 Bin = 430 heads. Average head weight is 295g (328+263)
T /h
a
Results – Harvest & Yield
Trial was conducted in commercial sized blocks
First Cut Yield was increased +100%
Second Cut Yield was increased +17%
Importantly in the Control the farmer is locked into a 3 cut labour cycle as 37.5% of
Yield comes from the 3rd cut
In the Humifirst WG treatment, depending on price the grower can choose to
eliminate the 3rd cut altogether as only 15% of his Yield comes from the 3rd cut
ROI: Constant Head Weight Basis
Assumptions:
- 8 kg box
- Ave. head weight 295g
- Average $15 per 8kg box
- 430 heads per bin
- Waste 5%
- Control: 64 bins x 430 heads x $15 / 8kg x 0.295 kg /head / 2.4 Ha x 95% = Control: $6029 /ha Gross
- Tradecorp: 71 bins x 430 heads x $15 / 8kg x 0.295 kg /head / 2.4 Ha x 95% =
Tradecorp: $6684 /ha Gross
- ROI 1:16 every $1 spent on Product increased Profit after Product Cost by $16
ROI: Real Head Weight Basis
Assumptions:
- 8 kg box
- Control Heads: 263g, Humifirst Heads 328g
- Average $15 per 8kg box
- 430 heads per bin
- Waste 5%
- Control: 64 bins x 430 heads x $15 / 8kg x 0.263 kg /head / 2.4 Ha x 95% = Control: $5984 /ha
Gross
- Tradecorp: 71 bins x 430 heads x $15 / 8kg x 0.328 kg /head / 2.4 Ha x 95% =
Tradecorp: $7432 /ha Gross
- ROI 1:35 every $1 spent on Product increased Profit after Product Cost by $35
Conclusions
Humifirst WG:
Resulted in more even crop development
Reduced blank heads and significantly increased Head size
Increased Total Yield +11%
Increased 1st Cut +100% and 2nd Cut +17%
Increased Cut Out % after 2nd Cut from 72 to 80% (+11%)
Allows grower to eliminate 3rd cut if desired, reducing labour
ROI to Grower was between $16 (Constant Head) $35 (Real Head Basis)
Conclusion
Humifirst WG @ 2 kg /ha 21DAT by drip:
- Increased Crop evenness- Increased Total Yield 1.15 T /ha (+11%)
ROI to Grower:- For every $1 spent on Humifirst WG the cost
was recovered and the profit to farmer was$16 – $35
