The Effects of Nitrogen Fertilization on Intercropped Strawberry and Broad Bean
The Effects of Nitrogen Fertilization on Intercropped Strawberry and Broad Bean
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氮肥对间作草莓、蚕豆的影响
DOI：
10.1300/j064v29n04_06
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发表时间：
2007
影响因子：
--
通讯作者：
E. Yıldırım
中科院分区：
文献类型：
--
作者：
H. Karlidag;E. Yıldırım
摘要：探讨草莓（Fragaria xananassa L. Duch.）与蚕豆（Vicia faba L. cv.）间作的不同方面。Lara)和它们与不同氮浓度的相似性，本研究进行了三年的实地研究。采用土地等效比（LERs）测定间作的综合效率。在间作地块，蚕豆种子播种在草莓行中间。同时，基于相同的实验设计，草莓和蚕豆也作为单一作物种植。在草莓单作区和间作区分别以0、80和160 kg/ hm2施用氮肥。不施氮肥的单作蚕豆作为对照。综上所述，间作和施氮对草莓果实的抗坏血酸、可溶性固形物总量和可滴定酸度等化学性状无显著影响。虽然种植制度对草莓单株果重、单株果重和产量无显著影响，但施氮量对这些参数有显著影响。在单作和间作草莓中，施用80 kg/ hm2氮肥可获得最大的可售果量。种植制度与施氮互作对草莓单株果重和总果重有显著影响。间作对蚕豆的生长造成了一些表型改变，如长高和生长习性等。但与单作相比，施用80 kg/ hm2氮肥对间作蚕豆的荚果数、单株荚果重和总产量均无显著影响。在施氮量为80 kg/ hm2的情况下，草莓与蚕豆间作的LER值最佳，说明间作可能比单作产量更高，特别是在施氮量为80 kg/ hm2的情况下。
ABSTRACT To determine different aspects of intercropping strawberry (Fragaria xananassa L. Duch.) with broad bean (Vicia faba L. cv. Lara) and their similarities to different nitrogen concentrations, this field study was conducted for three years. The overall efficiency of intercropping was measured by using Land Equivalent Ratios (LERs). In intercropping plots, broad bean seeds were sown in the middle of strawberry rows. Meanwhile strawberries and broad beans were also grown as sole crops based on identical experimental design. Nitrogen was applied at three different rates (0, 80, and 160 kg/ha) in both sole and intercrop plots of strawberry. Sole cropping broad beans grown with no fertilizer-N application were considered the control. As a result of these studies, it was reported that the chemical characteristics such as ascorbic acid, total soluble solid, and titratable acidity of strawberry fruits were not significantly affected by either intercropping or nitrogen fertilization. While cropping system did not have any negative effects on fruit weight, fruit weight per plant, and yield of strawberry, nitrogen application rate did significantly affect these parameters. The 80 kg/ha nitrogen application gave maximum amount of marketable fruits for strawberry in both sole cropping and intercropping. Cropping system interaction with nitrogen application showed significant differences in fruit weight per plant and total fruit weight of strawberry. Intercropping caused some phenotypic alteration such as increasing height and growth habits of broad bean. However, there were no significant reductions in pod numbers, pod weight per plants and total yield of intercropped broad bean at 80 kg/ha nitrogen application as compared with sole cropping. Strawberry intercropped with broad bean at 80 kg/ha nitrogen gave the best LER values, indicating that intercropping might be more productive than sole cropping especially in case of 80 kg/ha nitrogen application.