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Effects of different forms nitrogen fertilizers on yield and quality of pineapple (Ananas comosus (L.) Merr.) cv. Patavia |
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| รหัสดีโอไอ | |
| Creator | Auraiwan Isuwan |
| Title | Effects of different forms nitrogen fertilizers on yield and quality of pineapple (Ananas comosus (L.) Merr.) cv. Patavia |
| Publisher | Department of Agriculture |
| Publication Year | 2558 |
| Journal Title | THAI AGRICULTURAL RESEARCH JOURNAL |
| Journal Vol. | 33 |
| Journal No. | 3 |
| Page no. | 255-264 |
| Keyword | pineapple; nitrogen fertilizer; yield; chemical composition, สับปะรด; ปุ๋ยไนโตรเจน; ผลผลิต; องค์ประกอบทางเคมีของผลสับปะรด |
| ISSN | 1258389 |
| Abstract | This study aimed to compare the effects of different types of nitrogen (N) fertilizeron production of pineapple (Ananas comosus (L.) Merr.) cv. Patavia grown on ThayangSoil Series, Petchaburi Province. The experimental design was a completely randomizeddesign with 4 replications. The experiment was divided into 4 treatments namely 1) nofertilizer application, 2) using ammonium sulfate as a source of N at a rate of 75 - 17 - 68kg N,- P2O5 - K2O per rai (DOAA), 3) using urea as a source of N at a rate of 75 - 17 - 68kg N,- P2O5 - K2O per rai (DOAU) and 4) application of fertilizer at a typical farmer'spractice rate of 45 - 7.7 - 30.6 kg N,- P2O5 - K2O per rai (F). Plant heights and widths at2, 4, 6 and 8 months of age and fruit lengths and perimeters at 10 and 11 months of agewere recorded. Pineapple fruits were harvested at 12 months of age and were chemicalanalyzed for total soluble solids, pH and titratable acids. The results showed thatpineapple received either DOAA or DOAU had no effects on plant heights and widths,fruit lengths and perimeters, and fruit yields and chemical composition. However,pineapple received DOAA had nitrogen use efficiency (45.61%) and physiologicalefficiency (21.57 kg yield per kg N) greater than those in the DOAU and F treatments.Based on the above-mentioned findings, it can be concluded that ammoniumsulfate is recommended to be a source of N fertilizer for pineapple. |
