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首页> 外文期刊>The Americas Journal of Plant Science and Biotechnology >Water and Nutrient Crop Sufficiency Models for Potato, Wheat, Canola, Oats, Alfalfa, and Corn
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Water and Nutrient Crop Sufficiency Models for Potato, Wheat, Canola, Oats, Alfalfa, and Corn

机译：马铃薯，小麦，低芥酸菜籽，燕麦，苜蓿和玉米的水和营养作物充足模型

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摘要

Crop water and nutrient efficiency is very important for optimal economic and environmental productivity. Functional models relating crop yields to water and nutrient requirements are integral to many modeling studies forecasting climate change impacts on crop production and environmental footprints. The objective of this paper was to collect data, and identify or develop statistical models relating water and nutrient requirements to yield for some major crops grown in western Canada through a reviewof studies conducted in the Great Plains. Statistical models developed to predict water, nitrogen, and phosphorus rates for potato, wheat, canola, oats, alfalfa, and corns were reviewed and compared in terms of optimal yield achievements. Water and nutrient requirements depend on crop species, and varies among regions and models. Based on statistical models reviewed or developed in this study, the optimal growing season water requirement for wheat, oats, canola, alfalfa, and corn was 350, 450, 350, 500-600, and 425 mm, respectively. Average water use of potato for Manitoba was in the range of 375 to 400 mm but could go as high as 696 mm. Optimal nitrogen sufficiency for potato was reported to be 200 kg N ha~(-1). Nitrogen requirements for wheat, oats,canola, alfalfa, and corn were 105, 100-110, 150-220, 0 or 35-55, and 160 kg N ha~(-1), respectively. Optimal phosphorus sufficiency for potato was reported to be about 50 kg P ha~(-1) for Manitoba. Phosphorus sufficiency for wheat, oats, canola, alfalfa, and corn were about 15-50, 25-29, 26-36, 36-60, and 33-64 kg P ha~(-1).
机译：作物的水分和养分效率对于实现最佳的经济和环境生产力非常重要。将作物产量与水分和养分需求相关联的功能模型是许多预测气候变化对作物产量和环境足迹影响的建模研究不可或缺的一部分。本文的目的是通过回顾大平原地区的研究来收集数据，并确定或开发与水分和养分需求与加拿大西部种植的一些主要农作物的产量相关的统计模型。审查并比较了为预测马铃薯，小麦，低芥酸菜子，燕麦，苜蓿和玉米的水，氮和磷含量而开发的统计模型，并根据最佳产量达成了比较。水分和养分需求取决于作物种类，并且在区域和模型之间有所不同。根据本研究中评估或开发的统计模型，小麦，燕麦，低芥酸菜籽，苜蓿和玉米的最佳生长季节需水量分别为350、450、350、500-600和425 mm。曼尼托巴省马铃薯的平均用水量在375到400毫米之间，但可能高达696毫米。据报道，马铃薯的最佳氮充足为200 kg N ha〜（-1）。小麦，燕麦，低芥酸菜籽，苜蓿和玉米的氮需求分别为105、100-110、150-220、0或35-55和160 kg N ha〜（-1）。据报道，曼尼托巴省马铃薯的最佳磷充足约为50 kg P ha〜（-1）。小麦，燕麦，低芥酸菜籽，苜蓿和玉米的磷充足量分别约为15-50、25-29、26-36、36-60和33-64 kg P ha〜（-1）。

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