牡蛎壳土壤调理剂对酸化烟田的改良及烤烟生长的影响

Effects of Oyster Shell Soil Conditioner on the Improvement of Acidified Tobacco Fields and the Growth of Flue-Cured Tobacco

摘要: 为探究牡蛎壳粉作为土壤调理剂对酸性土壤的改良效果及对烟草生长的影响，本研究以烟草品质NC55为实验材料，通过设置0 (CK)、10、20、40 kg/hm²四个牡蛎壳粉施用水平进行大田实验，分别在移栽后30天、60天、90天、120天共四个批次测定土壤pH值及烟草的叶长、叶宽等生长指标。结果表明，施用牡蛎壳粉可以显著提高土壤的pH值，且提升效果与用量呈正相关。同时，适量的牡蛎壳粉(40 kg/hm²)能最有效地促进烟草生长，其各项生长指标均显著优于对照。本研究为利用牡蛎壳粉改良植烟酸性土壤、促进烟草增产提供了理论依据和实践参考。

Abstract: In order to explore the effect of oyster shell powder as a soil conditioner on the improvement of acidic soil and the growth of tobacco, this study used tobacco quality NC55 as the experimental material, and set four oyster shell powder application levels of 0 (CK), 10, 20, 40 kg/hm² for field experiments. The soil pH value and the growth indexes of tobacco leaf length and leaf width were measured in four batches of 30 days, 60 days, 90 days and 120 days after transplanting. The results showed that the application of oyster shell powder could significantly increase the pH value of soil, and the effect was positively correlated with the amount of oyster shell powder. At the same time, the appropriate amount of oyster shell powder (40 kg/hm²) can most effectively promote the growth of tobacco, and its growth indicators are significantly better than the control. This study provides a theoretical basis and practical reference for using oyster shell powder to improve acid soil and promote tobacco yield.