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Influence of Tobacco Plant on Macronutrient Levels in Sandy Soils
Agronomy ( IF 3.3 ) Pub Date : 2020-03-19 , DOI: 10.3390/agronomy10030418
Jacob Lisuma , Ernest Mbega , Patrick Ndakidemi

Tobacco (Nicotiana tabacum L.) is associated with great uptake of soil macronutrients. Following the need to understand the macronutrients levels before and after tobacco cultivation, research was conducted in loamy sand soil of Sikonge, Urambo, and sand soil of Tabora, Tanzania. The initial macronutrients levels in the soil were compared with those measured after unfertilized and fertilized tobacco. Results showed that unfertilized tobacco plant influences the increase of nicotine to the rhizosphere, the macronutrients Ca (135%) > N (25%), decrease in the order of S (81%) > P (49%) > Mg (12%) > K (11%). The sole effect of nitrogen–phosphorus–potassium (NPK) and calcium–ammonium–nitrate (CAN) 27% fertilizers increased further nicotine, Ca (25%) > N (20%) > S (8%) > Mg (4%) > P (3%), and decreased K (3%) in the rhizosphere. Both tobacco plant and NPK + CAN fertilizers on the rhizosphere increased Ca (193%) > N (50%) and decreased S (80%) > P (48%) > K (14%) > Mg (8%). Leaf concentrations in fertilized tobacco increased Ca (197%) > K (28%) > P (27%) > S (26%) > N (18%) > Mg (12%). Therefore, tobacco plant increases soil N and Ca but decreases P, K, Mg, and S.

中文翻译:

烟草对沙质土壤中大量营养元素的影响

烟草(烟草)L.)与土壤大量营养素的大量摄入有关。由于需要了解烟草种植前后的大量营养素含量,在乌兰博的Sikonge壤质壤土和坦桑尼亚的Tabora的砂土中进行了研究。将土壤中最初的大量营养素水平与未施肥和施肥的烟草后的水平进行了比较。结果表明,未施肥的烟草植物影响根际尼古丁的增加,主要营养元素Ca(135%)> N(25%),递减顺序为S(81%)> P(49%)> Mg(12%) )> K(11%)。氮-磷-钾(NPK)和钙-硝酸铵-硝酸钙(CAN)的唯一作用是27%的肥料进一步提高了尼古丁的含量,钙(25%)>氮(20%)>硫(8%)>镁(4% )> P(3%),而根际的K降低(3%)。根际上的烟草植物和NPK + CAN肥料均使Ca(193%)> N(50%)增加,而S(80%)> P(48%)> K(14%)> Mg(8%)降低。施肥烟草中的烟叶浓度增加了Ca(197%)> K(28%)> P(27%)> S(26%)> N(18%)> Mg(12%)。因此,烟草植物增加了土壤的氮和钙,但减少了磷,钾,镁和硫。
更新日期:2020-03-19
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