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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >Deficit irrigation analysis of red pepper (Capsicum annum L.) using the mathematical optimisation method.
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Deficit irrigation analysis of red pepper (Capsicum annum L.) using the mathematical optimisation method.

机译：使用数学优化方法对红辣椒（辣椒）的亏缺灌溉进行分析。

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摘要

Field experiments were conducted in Kahramanmaras, Turkey, in 1999 and 2000, to analyse deficit irrigation with the mathematical optimization method using the water-yield relationship and cost functions in red pepper and to determine alternative deficit irrigation water levels. For this purpose, the effect of 5 different irrigation levels (I1, I2, I3, I4 and I5) on dry yield (DY) was determined using a line source sprinkler irrigation system. The average water amounts applied with I1 (non-water stress treatment) and I5 (water stress treatment) for the 2 years were 913 and 296 mm, respectively, and I2, I3 and I4 varied between these extremes. The quadratic production and cost functions were established between the average irrigation water and DY, and between water and total costs, respectively. Maximum irrigation water (Wm), economically optimum level of irrigation water for land-limiting (Wl) and water-limiting (Ww), and equivalent deficit level for land-limiting (Wel) and water-limiting (Wew) for red pepper yield were calculated as 1026, 815, 752, 603 and 551 mm, respectively. The most economical irrigation levels, in terms of both net income from per unit of land and water, were 815 and 752 mm, respectively. At the Wew level, field irrigation was 1.86 times greater than at the Wm level, without reducing the net farm income. The results suggested that water resources should be distributed over the entire farm, rather than concentrated to maximize yields on particular parts of the farm..
机译：1999年和2000年在土耳其的Kahramanmaras进行了田间试验，以数学优化方法分析赤字灌溉，该方法使用了红辣椒的水量关系和成本函数，并确定了替代的赤字灌溉水位。为此，使用线源喷灌系统确定了5种不同灌溉水平（I1，I2，I3，I4和I5）对干燥产量（DY）的影响。使用I1（非水分胁迫处理）和I5（水分胁迫处理）的两年平均水量分别为913和296 mm，I2，I3和I4在这两个极端之间变化。分别在平均灌溉水和DY之间以及水和总成本之间建立了二次生产和成本函数。最大灌溉水（Wm），土地限制（Wl）和水分限制（Ww）的经济最优灌溉水量，土地限制（Wel）和水分限制（Wew）的等效赤字水平用于红辣椒产量分别计算为1026、815、752、603和551毫米。就单位土地和水的纯收入而言，最经济的灌溉水平分别为815毫米和752毫米。在Wow级别，田间灌溉是Wm级别的1.86倍，但没有减少农场的净收入。结果表明，水资源应该分配到整个农场，而不是集中在农场的特定部分以最大化产量。

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