CAJ | 학술논문

为了探索适宜烤烟生产的钾肥种类及追施深度，采用大田试验方法，分析了钾肥种类及追施深度互作对烤烟产量效益和养分吸收的影响。结果显示，钾肥种类与追施深度及其互作对烟叶产量、经济效益和养分吸收有显著影响。在相同追施深度下，与硫酸钾相比，施用包膜钾肥可以使烟叶产量提高10.6%～15.2%，产值增加11.0%～18.2%；同一钾肥追施深度20 cm比10 cm能够有效提高烟叶经济效益，包膜钾肥追施深度20 cm比10 cm可使中部叶和上部叶钾含量显著提高，磷、锌和硫含量有所提高。综合分析，钾肥种类及追施深度互作表现最好的为植物油包膜钾肥追施20 cm处理，其次是腐殖酸包膜钾肥追施20 cm处理。
위료탐색괄의고연생산적갑비충류급추시심도，채용대전시험방법，분석료갑비충류급추시심도호작대고연산량효익화양분흡수적영향。결과현시，갑비충류여추시심도급기호작대연협산량、경제효익화양분흡수유현저영향。재상동추시심도하，여류산갑상비，시용포막갑비가이사연협산량제고10.6%～15.2%，산치증가11.0%～18.2%；동일갑비추시심도20 cm비10 cm능구유효제고연협경제효익，포막갑비추시심도20 cm비10 cm가사중부협화상부협갑함량현저제고，린、자화류함량유소제고。종합분석，갑비충류급추시심도호작표현최호적위식물유포막갑비추시20 cm처리，기차시부식산포막갑비추시20 cm처리。
In order to provide a scientific basis for optimal potassium fertilizer types and topdressing depth to increase tobacco production, a field experiment was conducted to study the effects of different potassium fertilizer types and topdressing depth on the yield, benefit and nutrient uptake of tobacco by using split plot design with potassium fertilizer (two levels) as main treatment and dressing depths (three levels) as sub-plots. The results showed that, different potassium fertilizer, topdressing depth and their interactions had a significant effect on tobacco yield, economic value and nutrients uptake. In the same topdressing depth, compared with potassium sulfate, applying coated potassium fertilizer increased the yield and output value of tobacco, and increased by 10.6%to 15.2% and 11.0% to 18.2% respectively; Applying the same potassium fertilizer, topdressing the potassium fertilizer 20 cm effectively increased the economic benefit than 10 cm, for applying coated potassium fertilizer, topdressing depth 20 cm increased potassium, phosphorus, zinc and sulfur content in middle leaves and upper leaves than 10 cm, however. For potassium fertilizer types and potassium fertilizer types/topdressing depth interaction effect, topdressing bio-oil coated potassium fertilizer 20 cm treatment is the best, the second is topdressing humic acid coated potassium fertilizer 20 cm treatment. Under this experimental conditions, deep application coated potassium fertilizer in 20 cm soil layer can make full use of the topdressing depth and types of potassium fertilizer interaction effect, and effectively improve tobacco yield, economic benefits and potassium utilization efficiency.