干旱区生态环境知识资源中心(Arid): Improving vegetable production under semi-arid, saline conditions in south-western Madagascar

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DOI	10.1017/S001447972000040X
	Improving vegetable production under semi-arid, saline conditions in south-western Madagascar
	Andriamparany, Jessica N.; Hanisch, Susan; Buerkert, Andreas
通讯作者	Andriamparany, JN (corresponding author), Univ Kassel, Organ Plant Prod & Agroecosyst Res Trop & Subtrop, Steinstr 19, D-37213 Witzenhausen, Germany.
来源期刊	EXPERIMENTAL AGRICULTURE
ISSN	0014-4797
EISSN	1469-4441
出版年	2020
卷号	56 期号:6 页码:915-928
英文摘要	Agricultural production on the Mahafaly Plateau in SW-Madagascar has traditionally been based on subsistence rain-fed agriculture, with yields declining as a result of low soil fertility, recurrent droughts, and erratic rainfall. Market-oriented vegetable production in this area may help households improve their nutrition and diversify their income. In field trials between the 2013 and 2016 dry cropping seasons, the feasibility of carrot (Daucus carota L.) and onion (Allium cepa L.) production was assessed by testing effects of manure and charcoal amendments, shading, and seed quality on yields. Due to damage caused by cyclones and strong winds, only data from 2013 and 2016 are reported in this paper. Additionally to the field experiments, effects of salinity on seed germination were also examined under laboratory conditions and in the field. Carrot dry matter (DM) yields were 0.24 to 2.76 t center dot ha(-1) while those of onion were 0.15 to 0.99 t center dot ha(-1) DM. While the combination of manure and charcoal application had only minor effects on crop growth, manure alone increased carrot yield by 26% across years. After one cropping season, manure application reduced soil pH from 9.0 to 8.6 and increased soil C-org from 0.87 to 1.76%, N from 0.08 to 0.14%, and P from 10.6 to 15.1 mg center dot kg(-1). Shading reduced carrot yields from 0.87 to 0.58 t center dot ha(-1) DM in 2013 and from 1.87 to 0.85 t center dot ha(-1) DM in 2016, but increased onion yield in 2013 from 0.24 to 0.62 t center dot ha(-1) DM. Carrot seed procured locally performed better in the field than seed imported from the capital which translated into differences in seedling emergence. Saline irrigation water (electrical conductivity = 7.03 mS center dot cm(-1)) reduced seedling emergence rate of carrot from 73 to 20% and for onion from 44 to 28% and unprimed seeds performed better than primed ones. Using shading during the dry season is not advisable for carrot and onion production, but improving seed quality and targeted use of soil amendments (time of manure application, manure quality) may enhance vegetable yields.
英文关键词	Amendments Carrot Charcoal Manure Onion Seed quality Shading SW-Madagascar
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000612347700010
WOS关键词	SEEDLING EMERGENCE ; NITROGEN MINERALIZATION ; PRIMING TREATMENTS ; MAIZE YIELD ; CROP GROWTH ; GERMINATION ; SOIL ; BIOCHAR ; AMENDMENTS ; TOLERANCE
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369137
作者单位	[Andriamparany, Jessica N.; Hanisch, Susan; Buerkert, Andreas] Univ Kassel, Organ Plant Prod & Agroecosyst Res Trop & Subtrop, Steinstr 19, D-37213 Witzenhausen, Germany
推荐引用方式 GB/T 7714	Andriamparany, Jessica N.,Hanisch, Susan,Buerkert, Andreas. Improving vegetable production under semi-arid, saline conditions in south-western Madagascar[J],2020,56(6):915-928.
APA	Andriamparany, Jessica N.,Hanisch, Susan,&Buerkert, Andreas.(2020).Improving vegetable production under semi-arid, saline conditions in south-western Madagascar.EXPERIMENTAL AGRICULTURE,56(6),915-928.
MLA	Andriamparany, Jessica N.,et al."Improving vegetable production under semi-arid, saline conditions in south-western Madagascar".EXPERIMENTAL AGRICULTURE 56.6(2020):915-928.