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首页> 外文期刊>HortScience >Effect of Fertilizer Source on Nitrate Leaching and St. Augustinegrass Turfgrass Quality.
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Effect of Fertilizer Source on Nitrate Leaching and St. Augustinegrass Turfgrass Quality.

机译：肥料来源对硝态氮淋溶和圣奥古斯丁草皮质量的影响。

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As a result of the coexistence of turfgrass and ornamentals in traditional landscapes, it is often impractical to separate fertilization and irrigation management among species. Furthermore, limited information is available on effects of turfgrass fertilizer on ornamental plants and vice versa. This research studied effects of two quick-release fertilizers (QRF) and one slow-release fertilizer (SRF) on quality and growth of turfgrass and ornamental plants and nutrient leaching. 'Floratam' St. Augustinegrass (Stenotaphrum secundatum Walt. Kuntze) was compared with a mix of common Florida ornamentals, including canna (Canna generalis L.H. Bailey), nandina (Nandina domestica Thunb.), ligustrum (Ligustrum japonicum Thunb.), and allamanda (Allamanda cathartica L.). All plants were grown in 300-L plastic pots in Arredondo fine sand. Less nitrate (NO3(-)) was leached from turfgrass than from ornamentals and more NO3(-) leached from QRF 16N-1.7P-6.6K than from SRF 8N-1.7P-9.9K. Quick-release fertilizers produced higher plant quality. This controlled environment research provides preliminary data on which in situ research may be modeled. Further research is required to verify how nutrient release rate affects turfgrass and ornamental quality and nitrate leaching in an urban landscape.
机译：由于草皮草和观赏植物在传统景观中并存，因此在种间分开施肥和灌溉管理常常是不切实际的。此外，关于草皮肥料对观赏植物的影响的信息有限，反之亦然。这项研究研究了两种速释肥料（QRF）和一种缓释肥料（SRF）对草皮草和观赏植物的质量和生长以及养分淋失的影响。将'Floratam'圣奥古斯丁草（Stenotaphrum secundatum Walt。Kuntze）与常见的佛罗里达观赏植物进行了比较，包括美人蕉（Canna generalis LH Bailey），南地那（Nandina domestica Thunb。），女贞子（Ligustrum japonicum Thunb。）和黄am。 （阿拉曼达·凯瑟蒂卡·L。）。所有植物均在Arredondo细沙中的300升塑料盆中生长。从草皮草中沥出的硝酸盐（NO3（-））比从观赏植物中沥出的硝酸盐少，从QRF 16N-1.7P-6.6K中沥出的NO3（-）比从SRF 8N-1.7P-9.9K中渗出的硝酸盐更多。速释肥料可提高植物品质。此受控环境研究提供了可以对原位研究进行建模的初步数据。需要进一步的研究来验证养分释放速率如何影响城市景观中的草皮和观赏质量以及硝酸盐的淋溶。

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