Lime and Nutrients Effects on Jatropha curcas Cultivated on an Amazonian Soil

作者：Lopes Santos Jose Zilton; Faria Pereira Bruno Fernando; Figueira da Silva Jose Augusto; Franco Tucci Carlos Alberto; da Silva Silvio Vieira; Benlolo Barbosa Tainah Manuela; da Silva Daiana Soares

来源：Communications in Soil Science and Plant Analysis, 2017, 48(11): 1280-1290.

DOI：10.1080/00103624.2017.1322603

• Acidic soils
• biodiesel crop
• early growth
• macronutrients
• micronutrients
• physic nut

We evaluated the effects of macronutrient and micronutrient omission, and of liming, on Jatropha curcas (JC) in greenhouse study. The experimental design was a factorial combination of 2 liming treatments (nil or 4.5t. ha(-1) of dolomitic lime) x 7 combinations of fertility status, with five replications. The concentrations and uptake of nutrients by JC plants follow the order: nitrogen > potassium > calcium Magnesium > sulfur > phosphorus > iron > boron > manganese > zinc > copper (N>K>CaMg>S>P>Fe>B>Mn>Zn>Cu), but the growth of JC plants was negatively affected mainly by omission of macronutrients, in the following order: P>N=K=S, on limed soil. Phosphorus is the most critical element for development. JC is responsive to micronutrients only when applied together with macronutrients. Potassium chloride is not recommended as K+ source for JC crop. Lime is recommended to improve growth and nutritional status of JC plants.

• 出版日期2017