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โครงการหนังสืออิเล็กทรอนิกส์ด้านการเกษตร เฉลิมพระเกียรติพระบาทสมเด็จพระเจ้าอยู่หัว

Table 9 Total soluble solids of sweet corn in clay loam (% Brix)

Chemical Organic material
Fertilizer rate 1. No 2. Mangosteen peel 3. Mangosteen peel
(N-P 2O 5-K 2O กก./ Mangosteen rate 3.22 kg/rai rate 15.78 kg/rai Average
ไร่ peel (0.1% Tannin) (0.5% Tannin)
1. 0-5-5 13.8 14.8 14.8 14.5 a
2. 10-5-5 13.9 13.5 13.6 13.7 b
3. 15-5-5 13.7 13.8 14.0 13.8 b
4. 20-5-5 13.0 13.7 13.2 13.3 b
Average 13.6 14.0 13.9 13.8

CV (a) = 4.4% CV (b) = 3.5%
Mean in the same column followed by the same letters are not significantly different at 5% by DMRT
Table 10 Gross returns on the production of sweet corn used fertilizers in clay loam
Treatment Yield Yield Gross Cost of Net VCR
(kg/rai) increase return fertilizer return
(kg/rai) (baht/rai) (baht/rai) (baht/rai)
1. 0-5-5 2,548 - - - - -

2. 10-5-5 2,863 315 2,518 822 1,696 3.06
3. 15-5-5 2,785 236 1,891 1,020 871 1.85
4. 20-5-5 2,794 246 1,964 1,218 746 1.61

1
1. MS 3.22 kg/rai+0-5-5 2,492 -56 -451 426 -877 -1.06
2. MS 3.22 kg/rai+10-5-5 2,732 184 1,471 822 649 1.79

3. MS 3.22 kg/rai+15-5-5 3,168 620 4,923 1,020 3,903 4.86
4. MS 3.22 kg/rai+20-5-5 2,946 398 3,182 1,218 1,964 2.61
1. MS 15.78 kg/rai+0-5-5 1,998 -550 -4,402 426 -4,828 -10.33

2. MS 15.78 kg/rai+10-5-5 2,751 203 1,622 822 800 1.97
3. MS 15.78 kg/rai+15-5-5 2,999 451 3,609 1,020 2,589 3.54

4. MS 15.78 kg/rai +20-5-5 3,164 616 4,961 1,218 3,743 4.04
Average 2,770
1 MS abbreviations Mangosteen peel
Fertilizers price: 46-0-0 (18 baht/kg) 0-46-0 (24 baht/kg) 0-0-60 (18 baht/kg) and organic fertilizer (3 baht/kg)
yield price (8 baht/kg)

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