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首页> 外文期刊>Polish Journal of Environmental Studies. >Estimation of Nutrient Losses from Open Fertigation Systems to Soil during Horticultural Plant Cultivation
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Estimation of Nutrient Losses from Open Fertigation Systems to Soil during Horticultural Plant Cultivation

机译：园艺植物栽培过程中开放施肥系统对土壤的养分损失估算

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摘要

The objective was the evaluation of nutrient losses to soil during horticultural plant cultivation in greenhouses where open fertigation systems are used. Losses were estimated by comparing the chemical composition of nutrient solution effluent from the drippers to the growing media with nutrient leakage from the media to the soil (called drainage or drainage waters) during soilless culture of tomato, cucumber, roses and gerbera. Largest losses were of potassium (up to 413 kg K/month/ha), nitrates (up to 231 kg NO_3-N/month/ha), calcium (up to 220 kg Ca /month/ha) and sulphur (up to 101 kg SO_4-S/month/ha). Smallest losses were of microelements (from 0.01 kg of Mn and Cu to 3.46 kg of Fe per month/ha). In Poland, the greatest horticultural pollution source for the environment is caused by the fertigation of tomato, whose cultivation area covers 2,500 ha, and whose production cycle lasts about 10 months. The least pollution arises from gerbera, which covers only about 90 ha. Sources of agricultural point pollution are generally attributed to animal farms. On the basis of the presented study the source of point pollution is not only assigned to typical agricultural production, but also to greenhouse production systems using soilless culture and open fertigation.
机译：目的是评估使用开放施肥系统的温室中园艺植物栽培过程中土壤的养分流失。通过比较从滴头到生长介质的营养液流出物的化学成分与无土栽培的番茄，黄瓜，玫瑰和非洲菊的营养物从介质泄漏到土壤（称为排水或排水）的过程来估算损失。最大的损失是钾（最高413 kg K /月/公顷），硝酸盐（最高231 kg NO_N / N /月/公顷），钙（最高220 kg Ca /月/公顷）和硫（最高101千克SO_4-S /月/公顷）。微量元素的损失最小（从每月每公顷0.01千克的锰和铜到3.46千克的铁）。在波兰，对环境造成的最大园艺污染源是番茄施肥造成的，番茄种植面积达2500公顷，生产周期持续约10个月。非洲菊污染最少，仅占90公顷。农业点污染的来源通常归因于动物农场。在本研究的基础上，点污染源不仅分配给典型的农业生产，而且还分配给采用无土栽培和露天施肥的温室生产系统。

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