福建南平煙區(qū)烤煙合理施磷研究

A Study on Rational Application of Phosphorus Fertilizers to Flue-cured Tobacco Soils in Fujian Nanping

摘要: 研究了不同氮磷肥比例對烤煙生長發(fā)育和產(chǎn)質(zhì)量的影響。結果表明，氮磷肥比例為1: 0.8時能改善烤煙農(nóng)藝性狀和產(chǎn)質(zhì)量,，與未施磷肥處理相比,，在現(xiàn)蕾期最大葉面積增加325 cm2，產(chǎn)量增加150.6 kg/hm2,，產(chǎn)值提高2 100元/hm2。不同磷肥比例對煙葉含磷量無明顯影響，且隨著磷肥比例的增加,，煙葉的綜合質(zhì)量效益有降低的趨勢。綜合認為,，在南平植煙土壤條件下,氮磷比例為1:0.8時,，烤煙的綜合質(zhì)量效益最優(yōu)。

Abstract: Field experiments were carried out to study the effects of varous N:P on flue-cured tobacco leaf yield and quality in Fujian Nanping. The results showed that when the N:P was 1:0.8, the agronomic characteristics, leaf yield, and quality of flue-cured tobacco were improved. The largest leaf area increased 325 cm2 in buding time. Leaf yield and value increased by 150.6 kg/hm2 and 2100 yuan/hm2 respectively when compared to the treatment without phosphorus fertilizers. The different proportions of phosphorus fertilizers had no significant effect on leaf phosphorus content.When N:P was lower than 1:0.8, the agronomic characteristics and leaf quality of flue-cured tobacco decreased. Maximum overall benefit and quality of tobacco leaves were observed when the N:P was 1:0.8 in Fujian Nanping soils .