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Journal : Kultivasi

Serapan nitrogen dan fosfor serta hasil jagung yang dipengaruhi oleh aplikasi pupuk hayati dengan berbagai teknik dan dosis pada tanah Inceptisols Betty Natalie Fitriatin; Muhammad Iqbal Maulana Yusuf; Anne Nurbaity; Nadia Nuraniya Kamaluddin; Meddy Rachmady; Emma Trinurani Sofyan
Kultivasi Vol 20, No 3 (2021): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v20i3.34107

Abstract

Abstrak  Upaya meningkatkan unsur hara nitrogen (N) dan fosfor (P) tanah secara berkelanjutan adalah dengan memanfaatkan agen hayati bakteri penambat nitrogen dan bakteri pelarut fosfat. Percobaan pot dilakukan dengan tujuan untuk menentukan teknik aplikasi pupuk hayati dalam meningkatkan kandungan dan serapan hara N dan P  serta hasil tanaman jagung pada Inceptisols Jatinangor. Percobaan dilaksanakan di Lahan Percobaan milik Laboratorium Kesuburan Tanah dan Nutrisi Tanaman, Fakultas Pertanian Universitas Padjadjaran. Pupuk hayati yang digunakan merupakan konsorsium bakteri penambat N (Azotobacter chroococcum dan Azospirillum sp.) dan bakteri pelarut P (Pseudomonas malei dan Bacillus subtillis). Percobaan menggunakan Rancangan Acak Kelompok (RAK) dengan sembilan perlakuan dan tiga ulangan. Perlakuan terdiri dari tanpa aplikasi pupuk hayati (kontrol); aplikasi pupuk hayati menggunakan perlakuan benih dengan dosis 500 g dan 250 g/ha; aplikasi pupuk hayati ke dalam tanah dengan dosis 50 kg dan 25 kg/ha; dan kombinasi antara perlakuan benih dan aplikasi ke dalam tanah. Hasil percobaan menunjukkan bahwa teknik aplikasi pada benih, pada tanah, dan kombinasinya meningkatkan serapan N dan P serta hasil tanaman jagung. Perlakuan pupuk hayati pada benih 500 g/ha + aplikasi pada tanah 50 kg/ha merupakan perlakuan terbaik dalam meningkatkan serapan N sebesar 51% dan serapan P hingga 90% dibandingkan kontrol. Perlakuan pada benih 250 g/ha + aplikasi pada tanah 25 kg/ha merupakan perlakuan terbaik dalam meningkatkan hasil sebesar 56% dibandingkan kontrol. Teknik aplikasi pupuk hayati yang efisien dapat digunakan untuk meningkatkan produksi tanaman jagung.Kata kunci: Aplikasi tanah ∙ Keamanan pangan ∙ Pelarut fosfat ∙ Penambat nitrogen ∙ Perlakuan benih  Abstract. The application of biological agents such as nitrogen fixing bacteria and phosphate solubilizing bacteria  is an effort to increase soil nitrogen (N) and phosphorus (P) content. Pot experiment aimed to determine the best application technique of biofertilizer to increase N and P uptake and the yield of maize on Inceptisols. The experiment was carried out at the experimental field of the Laboratory of Soil Fertility and Plant Nutrition, Faculty of Agriculture, Universitas Padjadjaran. Biofertilizers contained of N-fixing bacteria  (Azotobacter chroococcum and Azospirillum sp.) and phosphate solubilizing bacteria  (Pseudomonas malei and Bacillus subtillis).  The experiment used a randomized block design with nine treatments and three replications. The treatments consisted of without biofertilizer application (control); biofertilizers application to seed (seed treatment) at a dose of 500 g ha-1 and 250 g ha-1; biofertilizers application to the soil (soil treatment) with a dose of 50 kg ha-1 and 25 kg ha-1; and the combinations between seed treatment and soil treatment. The results showed that the application of seed treatment, soil treatment, and their combination increased N and P uptake and yields of maize. The seed treatment at a dose of 500 g ha-1 + soil treatment at a dose of 50 kg ha-1 were the best treatment for increasing N uptake by 51% and P uptake by 90% compared to control. The seed treatment at a dose of 250 g ha-1 + soil treatment at a dose of 25 kg ha-1 increased yield of maize by 56% (213.40 g). Efficient biofertilizer application techniques could be used to increase maize production.Keywords: Soil application ∙ Food security ∙ Phosphate solubilizing ∙ Nitrogen fixing ∙ Seed treatment 
Response of tomato seed germination to several extraction techniques and magnetic field exposure treatments Shakina, Visira Deva; Nuraini, Anne; Nurbaity, Anne
Kultivasi Vol 23, No 1 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i1.44455

Abstract

The superior seeds are indicated by clean, good germination rate, pest and disease-free. One of the problems in providing superior tomato seeds is the presence of pulp attached to the tomato seeds, leading to less clean of seed. To remove the muscus on tomato seeds, the seeds have to be extracted. Other than seeds extraction, seeds exposure also could optimize seeds growth by increasing the metabolism of the tomato. The aim of this research is to determine the best extraction technique and magnetic field exposure for obtaining high tomato seeds germination. The complete random design used in this research consist of two factors, seeds extraction and magnetic field with three time replications. The result showed that seeds extraction for 24 hours is the best treatment for improving the maximum germination percentage, growth potential, growth rate, speed growth, uniformity index than others. Magnetic exposure at 6mT is the best treatment to improve seeds maximum growth and seeds speed growth.
Current status and the significance of local wisdom biofertilizer in enhancing soil health and crop productivity for sustainable agriculture: A systematic literature review Irwandhi, Irwandhi; Khumairah, Fiqriah Hanum; Sofyan, Emma Trinurani; Kamaluddin, Nadia Nuraniya; Nurbaity, Anne; Herdiyantoro, Diyan; Simarmata, Tualar
Kultivasi Vol 23, No 3 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i3.56018

Abstract

Soil fertility is recognized as a crucial factor in supporting plant growth and productivity. The utilization of biofertilizers as environmentally friendly fertilizers is aimed at enhancing soil fertility and plant productivity. This study aims to explore the potential of local material for developing local wisdom biofertilizers (LWB) for achieving sustainable agriculture. A systematic literature review was conducted using bibliometric analysis, Preferred Reporting Items for Systematic Reviews, and Meta-Analyses (PRISMA) method, employing the Scopus search engine with the keywords "local AND wisdom AND biofertilizer" OR "biofertilizer" OR "local AND microorganism" OR "soil AND health OR crop AND productivity OR sustainable agriculture". The search yielded 704 articles, of which 11 were deemed eligible after selection. Based on the literature review, it was found that there are local materials, including fish waste, seaweed, Azolla, fruit waste, Moringa oleifera, microalga, bamboo roots, banana hump, golden snail, mangrove leaves, fruit, and vegetable waste that can be used as raw materials for LWB to improve soil health, plant growth, and productivity. The development of LWB as a new fertilizer technology faces challenges such as lack of regulations, low public trust, limited farmer awareness, weak promotion, and raw material shortages. Further research is needed to intensively study and enhance the effectiveness of LWB through enrichment using beneficial microorganisms.