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Pengaruh Tumpangsari Jagung (Zea mays L.) dengan Famili Fabaceae terhadap Populasi dan Pertumbuhan Gulma Serta Efisiensi Penggunaan Lahan DI Lahan Kering Ngawit, I Ketut; Farida , Nihla; Haryanto, Hery
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 3 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v10i3.745

Abstract

The research aims to examine the effect of intercropping corn with the fabaceae family on weed population and growth as well as land use efficiency. The research was designed with a single factor treatment with a randomized block design in 3 blocks. This treatment is a monocrop planting pattern and intercropping of corn with peanuts, soybeans, green beans, red beans and cowpeas. The parameters observed include the weight of dry biomass and dry seeds of plants, the population and weight of dry biomass of weeds. As a result of the research, 16 weed species were found with high species diversity, evenness, dominance and abundance. It was found that 6 species of weeds were dominant and existed during plant growth, namely Cyperus rotundus, Paspalum vasginatum, Leersia hexandra, Digitaria longiflora, Cynodon dactylon, Synedrella nodiflora and Amaranthus gracilis. Peanuts and cowpeas are suitable for intercropping with corn because they can reduce the population and growth of weeds and do not compete with corn. Soybeans, green beans and red beans are not suitable for intercropping with corn because they are not effective in suppressing the population and growth of weeds and compete with corn, so that corn yield losses due to weed competition are 62.37% - 63.77% and corn yield losses due to crop competition reach 38.20 % – 40.96 %. The best ecological and agronomic land use efficiency was obtained from intercropping corn with peanuts and cowpeas, with land equalization values ​​(LEV) based on plant biomass weight of 1.90 and 1.89 and based on dry seed weight of 1.79 and 1.78 (LEV > 1).
Keanekaragaman, Dominansi, Daya Adaptasi dan Kehilangan Hasil Beberapa Varietas Kacang Tanah (Arachis hypogeae L.) Akibat Kompetisi Gulma Berdaun Lebar di Lahan Kering Ngawit, I Ketut; Wangiyana, Wayan; Farida , Nihla
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 3 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v10i3.746

Abstract

The aim of this research is to determine the weed species that play the greatest role in causing yield loss of several peanut varieties in dry land. The research was carried out on dry land owned by farmers in Pesanggrahan village, Montong Gading sub-district, East Lombok Regency, for 8 months. The research consisted of two stages, the first stage was descriptive research which aimed to observe the character of weed diversity using the basic principles of vegetation analysis, to obtain data on weed growth, population, density, frequency and dominance. Meanwhile, the second study used an experimental method, and the experiment was designed using a randomized block design, with a split plot pattern. As the main plot there are three varieties of peanuts, namely the Kidang, Gajah and Kelinci varieties. Meanwhile, the sub-plot consists of five treatments, namely weed-free plants during their growth, plants with weeds of all types of weeds during their growth, plants with weeds only from grasses, sedges and broad leaves during their growth. The results of the research show that Poaceae weeds are dominant during plant growth with quite high distribution and dominance index values, so they remain dominant during plant growth. The adaptability of the three varieties of rabbits, sheep and elephants is very low in the grass weed growing environment. The adaptability of the Elephant variety is higher than that of Rabbits and Sheep, especially in plant growing environments with sedge and broad-leaved weeds. The highest loss of crop yield occurred in the treatment of all types of weed plants and in the treatment of weed plants. Meanwhile, the lowest occurred in the treatment of broad leaf weed plants.