干旱区生态环境知识资源中心(Arid): Agro-economic viability of lettuce-beet intercropping under green manuring in the semi-arid region

Arid

DOI	10.1590/s0102-0536-20220111
	Agro-economic viability of lettuce-beet intercropping under green manuring in the semi-arid region
	Guerra, Natan M.; Neto, Francisco Bezerra; Lima, Jailma S. S.; Santos, Elizangela C.; Nunes, Renato L. C.; Porto, Vania C. N.; Queiroga, Roberto C. F.; Lino, Vitor A. S.; Sa, Jolinda M.
通讯作者	Guerra, NM
来源期刊	HORTICULTURA BRASILEIRA
ISSN	0102-0536
EISSN	1806-9991
出版年	2022
卷号	40 期号:1 页码:82-91
英文摘要	Producers who practice intercropped systems of leafy vegetables with tuberous ones, generally seek for systems that provide high productivity, greater diversification of production, high quality products and mainly agroeconomic return. Therefore, the objective of this work was to assess whether there is agro-economic viability of lettuce bi-cropping in intercrop with beet, under different equitable amounts of Merremia aegyptia and Calotropis procera biomass (20, 35, 50 and 65 t ha(-1) on dry basis) and population densities of lettuce (150, 200, 250 and 300 thousand plants of lettuce ha(-1)), combined with 500 thousand plants per hectare of beet in two years of cultivation in semi-arid environment. Productivity of lettuce leaves and commercial productivity of beet roots were evaluated, as well as the agronomic indices: land equivalent ratio (LER), area-time equivalent ratio (ATER), productive efficiency index (PEI), score of the canonical variable (Z), actual yield loss (AYL), and the economic indicators: gross income (GI), net income (NI), monetary advantage (MA) and rate of return (RR). The highest agro-economic returns of the lettucebeet intercropping were achieved with LER and ATER of 2.59 and 1.39; PEI and Z of 0.97 and 2.32; and AYL of 10.66; and GI, NI and MA of 94,742.89; 59,121.45; 56,631.98 R$ ha(-1) and RR of R$ 2.75 for each real invested, respectively, in the combination of 65 t ha(-1) of M. aegyptia and C. procera biomass and lettuce population density 300 thousand plants per hectare. Beet was the dominant crop and lettuce the dominated one. The lettuce and beet intercropping is highly viable when properly manured with biomass of M. aegyptia and C. procera, as they express agronomic and economic viability and sustainability in semi-arid environment.
英文关键词	Lactuca sativa Beta vulgaris Merremia aegyptia Calotropis procera mixed-cropping revenues
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000795010200011
WOS类目	Horticulture
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/2XILL650/393012
推荐引用方式 GB/T 7714	Guerra, Natan M.,Neto, Francisco Bezerra,Lima, Jailma S. S.,et al. Agro-economic viability of lettuce-beet intercropping under green manuring in the semi-arid region[J],2022,40(1):82-91.
APA	Guerra, Natan M..,Neto, Francisco Bezerra.,Lima, Jailma S. S..,Santos, Elizangela C..,Nunes, Renato L. C..,...&Sa, Jolinda M..(2022).Agro-economic viability of lettuce-beet intercropping under green manuring in the semi-arid region.HORTICULTURA BRASILEIRA,40(1),82-91.
MLA	Guerra, Natan M.,et al."Agro-economic viability of lettuce-beet intercropping under green manuring in the semi-arid region".HORTICULTURA BRASILEIRA 40.1(2022):82-91.