Planting a soybean [Glycine max (L.) Merr] crop during the fallow period between sugarcane plantings represents an economical opportunity for sugarcane growers in Louisiana. The objective of the experiment was to determine if soybean grown in the fallow period would affect the primary crop, sugarcane, through cane yield, theoretical recoverable sugar (TRS), and sugar yield. The experiment was conducted in two successive years (2004 and 2005) with two sugarcane varieties: ‘L 97-128’ and ‘HoCP 96-540.’ With and without starter fertilizer at the time of planting sugarcane was included to determine if potential yield loss associated with soybean could be mitigated with fertilizer. Soybean did not reduce cane yield, TRS, or sugar yield, with mean values of 48 tons/acre, 220 lbs/ton, and 10,400 lbs/acre, respectively. Plant-cane yield was marginally higher in fields cropped to soybean (49 tons/acre) when compared to fallow (47 tons/acre) (P = 0.072). There was no sugarcane variety or starter fertilizer response observed. Across years soybean yielded 40 bu/acre, which at current commodity prices ($11.45/bu) make the crop worth $460/acre. Calculated total observed costs for the soybean crop were $214/acre, with a net profit of $246/acre. Overall, soybean cropped between sugarcane plantings provide an economic incentive to growers and does not affect subsequent sugarcane yields.
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机译：在两次甘蔗种植之间的休耕期种植大豆[Glycine max（L.）Merr]作物，为路易斯安那州的甘蔗种植者带来了经济机会。该实验的目的是确定休耕期的大豆是否会通过甘蔗产量，理论可回收糖（TRS）和糖产量来影响主季作物，甘蔗。该实验连续两年（2004年和2005年）使用两个甘蔗品种：“ L 97-128”和“ HoCP 96-540”进行。在种植甘蔗时，无论是否使用发酵剂都包括在内，以确定潜在产量肥料可以减轻与大豆有关的损失。大豆没有降低甘蔗产量，TRS或糖产量，平均值分别为48吨/英亩，220磅/吨和10,400磅/英亩。与休耕地（47吨/英亩）相比，种植大豆的田间甘蔗单产略高（49吨/英亩）（P = 0.072）。没有观察到甘蔗品种或起初肥料的反应。多年以来，大豆产量为40蒲式耳/英亩，按当前的商品价格（11.45美元/蒲式耳）计算，该作物的价值为460美元/英亩。计算得出的大豆总观测成本为214美元/英亩，净利润为246美元/英亩。总体而言，在甘蔗种植之间种植的大豆为种植者提供了经济诱因，并且不会影响随后的甘蔗单产。
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