Daun lamtoro (Leucaenaleucocephala) mengandung unsur hara N, P, dan K untuk menambah unsur hara pada tanaman.Penelitian ini bertujuan untuk mempelajari pemupukan organik cair (POC) daun lamtoro yang diaplikasikan pada berbagai waktu berbeda terhadap pertumbuhan dan hasil tanaman bawang daun (Allium fistulosum L.). Penelitian ini dilaksanakan di KebunPercobaan 2 STIPER Dharma Wacana Metro di Jalan Wana Bakti 3, KelurahanMargerejo, Kecamatan Metro Selatan,Kota Metro. Pelaksaan penelitian dilakukan pada bulan November 2021 – Januari 2022. Rancangan penelitian ini disusun secara faktor tunggal menggunakan Rancangan Kelompok Teracak Lengkap (RKTL) terdiri atas POC daun lamtoro 150, 300, dan 450 mL polybag-1 yang diaplikasikan dengan interval waktu pemberian masing-masing 5 hari sekali, 7 hari sekali,dan 9 hari sekali. Masing-masing kombinasi perlakuan diulang sebanyak 3 (tiga) kali, data yang diperoleh diuji dengan analisis ragam yang sebelumnya telah diuji homogenitasnya dengan uji Bartlet dan ketidakaditifan diuji dengan uji Tuckey dan dilanjutkan dengan perbandingan orthogonal kontras, semua pengujian dilakukan pada taraf nyata 5%. Hasil penelitian ini dapat disimpulkan bahwa pemberian POC daun lamtoro tidak menunjukkan pengaruh yang nyata terhadap semua peubah, yaitu: tinggi tanaman, jumlah daun, jumlah anakan, hasil tanaman per polybag, laju pertumbuhan relatif, laju asimilasi bersih, kecuali pada nisbah luas daun melalui uji ortogonal yang diberikan pada dosis 150 mL polybag-1 dengan interval waktu 7 hari sekali lebih tinggi 25,59% daripada pengaplikasian dosis 300 dan 450 mL polybag-1.
Tujuan penelitian adalah menganalisis pendapatan usahatani padi sawah dan menganalisis faktor-faktor sosial ekonomi yang mempengaruhi pendapatan usahatani padi sawah di masa pandemi covid-19. Analisis yang digunakan analisis pendapatan dan analisis regresi linier berganda. Teknik pengambilan sampel yaitu simple random sampling sebanyak 51 petani. Hasil penelitian yaitu pendapatan usahatani padi sawah sebesar Rp. 10,368,541.00 /ha/musim tanam dengan nilai R/C ratio sebesar 2,1 (menguntungkan). Faktor sosial ekonomi yang berpengaruh terhadap pendapatan usahatani padi sawah adalah luas lahan, harga pupuk organik, dan harga pupuk ponska, sedangkan faktor yang tidak berpengaruh nyata terhadap pendapatan usahatani padi sawah adalah tingkat pendidikan, harga pupuk kandang, harga pupuk urea, harga pupuk ZA, harga pupuk KCL, harga pestisida, jumlah anggota keluarga dan usia.
In lowland rice (Oryza sativa L.) cultivation, soil puddling will make rice roots easy to develop, making it easier to do seedling transplanting (Huang et al. 2016). However, plowing causes soil particles and nutrients to drift along with water flow. This results in increased water sedimentation and decreased decomposition rate of organic matter (Sharma and De Datta 1985). Therefore, it is not surprising that in many Asian rice-producing countries, the environmental damage to agricultural lands is directly or indirectly caused by intensive rice production with perfect soil tillage that has been happening for decades (Reddy and Hukkeri 1983).Weeds in lowland rice cultivation reduce rice yields not only because they compete for soil nutrients, moisture, and sunlight but also because they may be an alternate host for insects and diseases of rice. Normally, weed control requires a lot of labour (Lhungdim et al. 2019); hence the use of chemicals (herbicides) for weed control before planting worth to be trying (Gangireddy and Subramanyam 2020). The soil tillage activities for rice cultivation in paddy fields do not absolutely require tillage because the availability of water in paddy fields can actually help the puddling process (Prasanthkumar et al. 2021).
<p>The experiment was conducted to screen potentials indigenous fungi for rapid decomposing of rice straw. Seven isolates of dominant fungi were isolated from the burying rice straw on the 2.5 cm soil depth after 30 days incubation on the paddy fields. Five dominant isolates were tested for their potential to decompose rice straw by assessing their value of decreasing C/N ratio and dry weight of rice straw. Fungal inoculums treatments were arranged in a Completely Randomized Design with four replications. The results showed that the dominant cultivable fungi that isolated from decomposed rice straw were Trichoderma sp., Fusarium sp., Mucor sp., Aspergillus sp., and Penicillium sp. Among the tested fungi, Trichoderma sp. had the biggest ability to decompose rice straw compared to others indigenous fungi. The C/N ratio was reduced to 39.47 from an initial value of 73.33 of control treatment in 10 days of biodegradation process in laboratory scale, thus showing the potential of indigenous Trichoderma sp. for use in large-scale composting of rice straw.</p><p>Keywords: Cultivable, decomposer, indigenous fungi, rice straw</p><p>[<strong>How to Cite</strong>: Isnaini S, A Niswati and Maryati. 2012. Screening of Cultivatable Indigenous Fungi which Responsible for Decomposing of Rice Straw. J Trop Soils 17 (1): 61-66. doi: 10.5400/jts.2012.17.1.61]</p><p> </p><p>[<strong>Permalink/DOI:</strong> <a href="http://dx.doi.org/10.5400/jts.2012.17.1.61" target="_blank">www.dx.doi.org/10.5400/jts.2012.17.1.61</a>]</p>
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