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All Journal AGRITROP AGROEKOTEKNOLOGI Proceeding International Conference on Global Resource Conservation
CHAIRANI HANUM
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Health Professions Other

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Effect of Cropping Systems and Farming Systems to the Diversity of Insects on Potato Field in Karo Highland Sidauruk, Lamria; Bakti, Darma; Kuswardani, Retna Astuti; Hanum, Chairani
Proceeding International Conference on Global Resource Conservation Vol 6, No 1: Proceeding of 6th ICGRC 2015
Publisher : Proceeding International Conference on Global Resource Conservation

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Abstract

The spesies composition of arthropods on agro-ecosystem can be seen as a general indicator for ecosystem stability and ecological resilience. Agricultural intensification has been linked with losses of biodiversity and disruption of key ecosystem services in farmed landscapes. This study aimed to determine how cropping system and farming systems able to increase the diversity of insects on potato field, that can be used as an integrated pest management strategy. The result showed that insect diversity index and population of natural enemies in polyculture cropping system is higher than monoculture cropping system, while the pest population is lower. Insect diversity index and population of natural enemies in organic farming systems is higher than conventional farming systems, in general the pest population was lower in conventional farming systems, but not significant with organic farming system. The polyculture cropping potatoes+cabbage+mustard+celery, potatoes+cabbage, potato+mustard respectively which grown by organic farming systems provide the highest insect diversity index, the lowest percentage of crop damage, the lowest populations of pest, and the highest natural enemy populations when compared with the same polyculture cropping with conventional farming systems. Keywords: Cropping system; farming system; insect diversity; potato
Pertumbuhan Akar Kedelai pada Cekaman Aluminium, Kekeringan dan Cekaman Ganda Aluminium dan Kekeringan HANUM, CHAIRANI; MUGNISJAH, WAHYU Q.; YAHYA, SUDIRMAN; SOPANDY, DIDI; IDRIS, KOMARUDIN; SAHAR, ASMARLAILI
AGRITROP Vol. 26, No. 1 Maret 2007
Publisher : AGRITROP

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The objective of this research was to study the change of vegetative growth of root on some genotypes soybeanof aluminium toxicity, drought stress, and double stress (Al toxicity and drought stress). Research in rooting systemof soybean is hoped to get more attention, especially for supporting concept of new plant type for high yieldingpotential. Six genotypes of soybean (Slamet, Sindoro, Dieng, Sinyonya, Lumut, and Wilis), treated with aluminiumsaturated (Al 25%, Al 50%, and Al 75%) and field capacity (80% FC and 40% FC). Response of growth vegetativeidentified perception by root dry weight. Result of the study show that only one from six that is genotype Wiliswas tolerant at aluminium toxicity, drought stress, and double stress.
Growth of Three Varieties of Kenaf (Hibiscus cannabinus L.) by Giving N, P, K Fertilizer Under Rubber Produce Area Sitindaon, Putri; Hanum, Chairani; Ginting, Jonis
Jurnal Agroekoteknologi Vol 5, No 1 (2017)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v5i1.14135

Abstract

The objective of this research was to study three varieties kenaf effect growth by giving N,P,K fertilizer were plant under the rubber produce. The experiment was conducted in PT. Perkebunan Nusantara III Silau Dunia Village District of Serdang Bedagai, from September 2015 to January 2016. The method used was factorial randomized block design with 2 factor, the first factor was varieties i.e. KR 9, KR12 and KR14, the second factor was N,P,K fertilizer i.e.  (0 g/plant hole: 1,80 Urea ; 0,60 g TSP ; 0,60 g KCl / plant hole: 3,60 g Urea ; 1,20 g TSP ; 1,20 g KCl / plant hole: 5,40 g Urea ; 1,80 g TSP ; 1,80 g KCl /plant hole). The result showed that three varieties of kenaf by giving N,P,K fertilizer under rubber shelter and interaction between them has not significantly affected to all parameters observed I.e. plant height, number of leaves, shoot fresh weight, and shoot dry weight at 4-13 WAP.
Co-Authors ASMARLAILI SAHAR Darma Bakti DIDI SOPANDY Jonis Ginting KOMARUDIN IDRIS Lamria Sidauruk Retna Astuti Kuswardani Sitindaon, Putri SUDIRMAN YAHYA WAHYU Q. MUGNISJAH