ABSTRACT Cotton yield is affected by several factors some of which are related to soil characteristics, and some are related to farmers’ input. The effect of these factors on cotton yield is studied in the current research. A total of 296 samples of soil characteristics and other factors were collected from agriculture department (GIS system) and farmers. Soil characteristics include soil pH, electrical conductivity (EC), organic matter (OM), phosphorous (P), potassium (K), calcium carbonate (CC), and micronutrients as zinc (Zn), copper (Cu), iron (Fe), manganese (Mn), and boron (B). The variety of seed, pesticide, fertilizer, etc., was also considered. A multiple regression model was used to study the effect of these factors on cotton yield. The results showed that of variation in the cotton yield is explained by these factors. It was also revealed that EC, pH, saturation, OM, P, Zn, Cu, Fe, and B have a significant contribution to the cotton yield. Some other factors like fertilizer (nitrophos, nitrogen, and urea), previously sown crops (wheat and corn), type of seed, chemical coating of seed, type of water, way of cultivation, and use of compost have also a significant contribution in the yield of cotton.

中文翻译：

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土壤等性状对棉花产量影响的统计调查

摘要 棉花产量受多种因素的影响，其中一些与土壤特性有关，一些与农民的投入有关。目前的研究正在研究这些因素对棉花产量的影响。从农业部门（GIS系统）和农民共收集了296个土壤特征和其他因素的样本。土壤特性包括土壤 pH 值、电导率 (EC)、有机质 (OM)、磷 (P)、钾 (K)、碳酸钙 (CC) 和微量营养素如锌 (Zn)、铜 (Cu)、铁 (Fe) )、锰 (Mn) 和硼 (B)。还考虑了种子、农药、肥料等的种类。采用多元回归模型研究这些因素对棉花产量的影响。结果表明，棉花产量的变化是由这些因素解释的。还表明EC、pH、饱和度、OM、P、Zn、Cu、Fe和B对棉花产量有显着贡献。其他一些因素，如肥料（硝基磷、氮和尿素）、先前播种的作物（小麦和玉米）、种子类型、种子的化学涂层、水的类型、栽培方式和堆肥的使用也对棉花的产量。