生物鉀肥對(duì)烤煙含鉀量和經(jīng)濟(jì)性狀的影響

Effects of biotic potassium application on potassium content and economic characters of flue- cured tobacco

摘要: 試驗(yàn)研究了生物鉀肥對(duì)烤煙含鉀量和經(jīng)濟(jì)性狀的影響,。結(jié)果表明, 與對(duì)照相比, 施用生物鉀肥能夠顯著提高烤煙中,、上部葉, 上、中,、下莖部和葉脈中的含鉀量; 增大上,、中、下部莖以及葉脈,、葉片之間的鉀濃度梯度, 使烤煙鉀素的分布更集中于煙株的地上部, 為提高中,、上部煙葉的含鉀量提供鉀源, 增加鉀素的積累。同時(shí)提高產(chǎn)量,、單葉重,、上等煙比例和均價(jià), 顯著提高產(chǎn)值,。

Abstract: Field experiment was conducted in 2001 at Xiangcheng to test the effects of biotic potassium application on potassium content and economic characters of flue- cured tobacco. The experiment included four treatments, which were given biotic potassium at rates of 15, 30, 45 kg / hm2 respectively. The results showed that compared with treatment 1, treatments 2, 3 and 4 could significantly promote the content of potassium in middle and upper leaves, and in stalk and midrib, increase the gradient of potassium content between midrib and lamina, cause potassium distribute more in stalk, suppling potassium source for middle and upper leaves and increase potassium accumulation. Biotic potassium application could increase yield, weight of middle leaf, the proportion of top class leaf and average price, could increase value per 667m2 significantly.