Abstract
This research aimed to find a pattern of agroecosystem management that can increase arthropod diversity, production, and Return Cost Ratio (RCR) values in organic wetlands planted during the dry season. This research was set in Randomized Block Design (RAK) with seven treatments and five repetitions, namely: 1) Intercropping between green mustard and basil, with chicken manure and without<em> </em><em>Bacillus thuringiensis</em>; 2) Intercropping between green mustard and basil with water hyacinth compost, and without <em>B. thuringiensis</em>; 3) intercropping between green mustard and leek, given water hyacinth compost, and without application <em>B. thuringiensis</em>; 4)Intercropping between green mustard and leek, given chicken manure, and without application <em>B. thuringiensis</em>; 5) Intercropping between green mustard and leek, given chicken manure, and given <em>B. thuringensis</em> application, doubled of recommended dosage; 6) Intercropping between green mustard and leek with chicken manure, and <em>B. thuringensis</em> application according to recommended dosage; 7) Monoculture of green mustard without organic fertilizer and without the application <em>B. thuringiensis. </em>From this research, it was concluded that the pattern of agroecosystem management of green mustard that can increase arthropod diversity in organic wetlands planted during dry season was the intercropping treatment between green mustard with basil, together with chicken manure and without <em>B. thuringiensis</em>. Meanwhile, the pattern of agroecosystem management of green mustard that can increase the production of green mustard and RCR value on the organic wetlands planted in the dry season was the intercropping treatment between green mustard with leek, together with chicken manure, and without <em>B. thuringiensis</em>.
Highlights
The mustard plant (Brassica juncea L.) is a type of plant leaf vegetables that has high economic value, including in the Cruciferai family
This study aimed to find a pattern of agroecosystem management that can increase arthropod diversity, leaf production, and Return Cost Ratio (RCR) values of mustard planted during the dry season
Based on the results of the research it was found that the types of organic fertilizer, intercropping plants and B. thuringiensis application had an effect on the diversity index on green mustard plantation
Summary
The mustard plant (Brassica juncea L.) is a type of plant leaf vegetables that has high economic value, including in the Cruciferai family. Mustard plants were originated from China and East Asia, they entered Indonesia during the XI. The mustard plant is widely favored by Indonesians as a mix ingredient for processed foods and can be consumed raw, since it contains complete nutrition and fulfills the requirement to be part of nutritional needs of the community (Edi et al, 2010). Demand for mustard greens is increasing, in line with the increasing of population and the nutritional awareness. Has not been sufficient for the needs and demands of the community due to several causes, one of them is the pest attacks. Farmers control pest attacks using chemical pesticides (synthetic) and it is used very frequently, whether in average dose or high average concentration. Farmers believe that the usage of chemical pesticides is more practical in application and the results are more visible
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