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首页> 外文期刊>Revista Caatinga >CASTOR BEAN PRODUCTION AND CHEMICAL ATTRIBUTES OF SOIL IRRIGATED WITH WATER WITH VARIOUS CATIONIC COMPOSITIONS
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CASTOR BEAN PRODUCTION AND CHEMICAL ATTRIBUTES OF SOIL IRRIGATED WITH WATER WITH VARIOUS CATIONIC COMPOSITIONS

机译：各种阳离子组成的水灌溉土壤的蓖麻豆的生产和化学性质

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This study aimed to evaluate the production of castor beans, cv. ?BRS Energia?, in terms of soil chemical composition as a function of the cationic nature, and salinity levels, of the irrigation water. The experiment was carried out using lysimeters in a controlled environment at the Center of Technology and Natural Resources of the Federal University of Campina Grande, from November 2013 to February 2014. The treatments consisted of six types of salinity (S 1 - Control; S 2 - Na + ; S 3 - Ca 2+ ; S 4 - Na + + Ca 2+ ; S 5 - K + , and S 6 - Na + + Ca 2+ + Mg 2+ ), distributed in randomized blocks with four replicates; each plot consisted of five plants for evaluation, totaling 120 experimental plots. Plants in the control treatment (S 1 ) were irrigated with water with an electrical conductivity (ECw) of 0.6 dS m - 1 , and the other treatments (S 2 ; S 3 ; S 4 ; S 5 and S 6 ) with ECw of 4.5 dS m - 1 , but with (a) different cation(s). Water salinity of 4.5 dS m - 1 hampers castor bean production, regardless of the cationic nature of the water; castor bean ?BRS Energia? was more sensitive to salinity caused by the presence of potassium salts in the irrigation water; the mass of seeds in the primary raceme is the most sensitive variable to salinity and the cationic nature of the irrigation water; the adopted leaching fraction (0.10) was not sufficient to avoid salt accumulation in the soil; irrigation with low ECw promoted the lowest value of exchangeable sodium percentage.
机译：这项研究旨在评估蓖麻子的产量。就土壤化学组成而言，“ BRS能量”是灌溉水的阳离子性质和盐度水平的函数。该实验是在2013年11月至2014年2月于美国坎皮纳格兰德联邦大学技术与自然资源中心的受控环境中使用溶度计进行的。治疗方法包括六种盐度（S 1-对照; S 2 -Na +; S 3-Ca 2+; S 4-Na + + Ca 2+; S 5-K +和S 6-Na + + Ca 2+ + Mg 2+），分布在四个重复的随机区组中;每个样地由五棵植物进行评估，共有120个实验样地。对照处理（S 1）的植物用水电导率（ECw）为0.6 dS m-1灌溉，其他处理方法（S 2; S 3; S 4; S 5和S 6）的ECw为0。 4.5 dS m-1，但带有一个或多个不同的阳离子。水盐度为4.5 dS m-1阻碍了蓖麻子的生产，而与水的阳离子性质无关;蓖麻子？BRS Energia？对灌溉水中钾盐引起的盐度更敏感;初级消旋体中种子的质量是对盐度和灌溉水阳离子性质最敏感的变量;采用的浸出率（0.10）不足以避免土壤中盐分的积累;低ECw灌溉促进了最低钠交换值。

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