TY - JOUR AU - พวงจิก, ธัญพิสิษฐ์ AU - ฤทธิ์เพชร, ต้องใจ AU - หาระโคตร, พรชัย PY - 2019/01/11 Y2 - 2024/03/29 TI - ผลของชนิดและอัตราปุ๋ยเคมีต่อการเจริญเติบโตของไผ่ตงหม้อ JF - Thai Journal of Science and Technology JA - Thai J. Sci. Technol. VL - 8 IS - 1 SE - วิทยาศาสตร์ชีวภาพ DO - 10.14456/tjst.2019.3 UR - https://li01.tci-thaijo.org/index.php/tjst/article/view/165781 SP - 20-30 AB - <p><strong>Abstract</strong></p><p>This experiment studied the effects of the chemical fertilizer formulas and rates on growth of Dendrocalamus asper Backer bamboo. The trial was arranged in a Completely Randomized Design (CRD) with three replications. Seven treatments included no chemical fertilizer application (control), 46-0-0 fertilizer at 15 and 20 gram/pot/time rates, 16-16-16 fertilizer at 15 and 20 gram/pot/time rates, and 46-0-0 mixed with 16-16-16 fertilizers at 15 and 20 gram/pot/time rates. The bamboo growth data were collected after 3, 6 and 9 months of cultivation. The results showed that the 46-0-0 fertilizer at 15 gram/pot/time rate resulted in the highest nitrogen content in bamboo leaves as well as potassium content in bamboo stems (1.25 and 1.28 %, respectively). A 16-16-16 fertilizer at 20 gram/pot/time rate promoted the new shoots after 3 and 9 months of cultivation (8 and 7.7 shoots/pot, respectively). Moreover, this fertilizer formula and rate also resulted in the highest stem at 3 and 6 months after cultivation (155.14 and 312.39 cm, respectively). The 46-0-0 with 16-16-16 fertilizer at 15 gram/pot/time rate gave the highest bamboo height at 9 months after transplanting (357.33 cm). These chemical fertilizer formula at 20 gram/pot/time rate resulted in the highest nitrogen content in bamboo stems (0.73 %). However, chemical fertilizer application caused the significantly decreased pH of the growing media.&nbsp;</p><p><strong>Keywords:</strong> <em>Dendrocalamus asper</em>; chemical fertilizer; growth</p> ER -