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首页> 外文期刊>HortTechnology >Economic Analysis of Nitrogen Rate on Vine Production and Fruit Yield of Pruned Cranberry Beds.
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Economic Analysis of Nitrogen Rate on Vine Production and Fruit Yield of Pruned Cranberry Beds.

机译：施氮量对修剪蔓越莓床葡萄产量和水果产量的经济分析。

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摘要

Four nitrogen rates (0, 50, 100, and 150 lb/acre) and four spring pruning severities (none, low, medium, and high) were applied annually in all combinations at two commercial 'Stevens' cranberry (Vaccinium macrocarpon) farms in southeastern Massachusetts for 4 years (consecutive). Because runners generated from pruning vines are used to establish new plantings, determining the vine weight generated from each treatment combination was an important criterion for the economic analysis; these data were collected each spring. Mean pruning weight across nitrogen treatments at both locations, collected from the low, medium, and high severity pruning treatments, was 0.17, 0.35, and 0.54 ton/acre, respectively. Economic analysis of the data indicated that nitrogen rate largely determined net income revenues; pruning severity did not significantly affect net income. Nitrogen rates of 100 and 150 lb/acre led to declines in fruit yield and ultimately, in net income. Annual removal of 0.5 ton of vines per acre while applying 50 lb/acre nitrogen did not negatively impact net income values over the 4-year study period. When deciding on horticultural management options for vine propagation, growers should consider the impact of their fertilizer program on fruit yield.
机译：每年在两个商业化的“史蒂文斯”蔓越莓（越橘大果园）农场的所有组合中，每年施用四种氮肥（0、50、100和150磅/英亩）和四种春季修剪强度（无，低，中和高）。马萨诸塞州东南部，为期4年（连续）。由于使用修剪后的藤蔓产生的转轮来建立新的种植区，因此确定每种处理组合产生的藤蔓重量是进行经济分析的重要标准。这些数据是在每年春季收集的。从低，中和高严重性修剪处理中收集到的两个位置的氮处理的平均修剪重量分别为0.17吨/英亩，0.35吨/英亩和0.54吨/英亩。数据的经济分析表明，氮肥率在很大程度上决定了净收入。修剪的严重程度并没有显着影响净收入。氮施用量为100磅/英亩和150磅/英亩时，会导致水果产量下降，并最终导致净收入下降。在为期4年的研究期内，每英亩每年除以50磅/英亩的氮而清除0.5吨葡萄树不会对净收入产生负面影响。在决定葡萄藤繁殖的园艺管理选择时，种植者应考虑施肥计划对水果产量的影响。

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