Audrey, Anggi Marsha Rose and Dr.Ir. Yulia Nuraini, MS. (2024) Pengaruh Pengaplikasian Pupuk Anorganik Fosfor Terhadap Total Populasi Bakteri Pelarut Fosfat dan Hasil Tanaman Cabai Merah (Capsicum annum L.). Sarjana thesis, Universitas Brawijaya.
Abstract
Kebutuhan cabai merah di Indonesia terus meningkat seiring dengan meningkatnya jumlah penduduk di Indonesia. Peningkatkan produksi cabai merah bergantung dengan jumlah unsur hara untuk mendukung pertumbuhannya terutama adalah unsur hara P yang berperan dalam pembentukan fase generatif tanaman yang dapat meningkatkan produksi cabai merah. Ketersediaan P di dalam tanah sangat rendah karena terikat dengan unsur lainnya. Upaya yang dapat dilakukan untuk meningkatkan ketersediaan P adalah dengan pemupukan dan bantuan bakteri pelarut fosfat yang dapat mengubah P yang tidak tersedia menjadi tersedia bagi tanaman. Tujuan dari dilaksanakannya penelitian ini yaitu menganalisis pengaruh aplikasi pupuk anorganik fosfor terhadap total populasi bakteri pelarut fosfat dan ketersediaan P di dalam tanah serta produksi tanaman cabai merah. Kegiatan penelitian ini dilaksanakan pada bulan September 2022 hingga Juni 2023 di Lahan Percobaan dan laboratorium Fakultas Pertanian Universitas Brawijaya. Penelitian ini menggunakan rancangan acak kelompok (RAK) dengan 9 perlakuan dan 3 ulangan. Perlakuan yang diterapkan meliputi 1) CA (Kontrol Tanpa Pupuk), 2) CB (Kontrol NPK Majemuk Rekomendasi), 3) CC (Kontrol NPK Tunggal Rekomendasi), 4 ) CD (800 kg ha-1 NPK 15-10-12 + 200 kg ha-1 ZA + 200 kg ha-1 Pupuk Fosfor Uji), 5) CE (800 kg ha-1 ZA + 300 kg ha-1 Rock Phospate + 200 kg ha-1 KCl), 6) CF (800 kg ha-1 ZA + 300 kg ha-1 Pupuk Fosfor X + 200 kg ha-1 KCl), 7) CG (800 kg ha-1 ZA + 300 kg ha-1 Pupuk Fosfor Uji + 200 kg ha-1 KCl), 8) CH (800 kg ha-1 ZA + 400 kg ha-1 Pupuk Fosfor Uji + 200 kg ha-1 KCl), 9) CI (800 kg ha-1 ZA + 500 kg ha-1 Pupuk Fosfor Uji + 200 kg ha-1 KCl). Parameter yang diamati meliputi total populasi bakteri pelarut fosfat, pH, C-organik, P-total, P-tersedia, tinggi tanaman, jumlah daun, jumlah dan berat cabai per tanaman serta serapan P. Data yang diperoleh kemudian ditabulasi ke dalam Microsoft Excel. Selanjutnya dilakukan analisis ragam ANOVA (Analysis of Variance) uji F dengan taraf 5% di Genstat Uji lanjut menggunakan DMRT 5% kemudian dilakukan uji korelasi dan regresi. Hasil dari penelitian ini menunjukkan bahwa pengaplikasian Pupuk anorganik fosfor berpengaruh nyata (P < 0,05) terhadap populasi bakteri pelarut fosfat, pH dan P-tersedia. Selain itu, pengaplikasian Pupuk anorganik fosfor juga berpengaruh nyata (P<0,05) terhadap pertumbuhan pada 35 HST dan 42 HST meliputi tinggi tanaman, jumlah daun. Pengaplikasian Pupuk anorganik fosfor berpengaruh nyata (P<0,05) pada jumlah dan berat cabai per tanaman serta serapan P tanaman. Berdasarkan hasil uji korelasi dan regresi terdapat hubungan erat dan korelasi postif antara bakteri pelarut fosfat dengan P-tersedia dan serapan P (r = 0,4340 dan r = 0,3368). Terdapat hubungan erat dan korelasi positif antara serapan P dengan jumlah cabai dan bobot cabai per tanaman (r = 0,6116 dan r = 0,6959). Berdasarkan hasil penelitian, perlakuan terbaik yaitu ZA 800kg/ha + Pupuk Anorganik P 400kg/ha + KCl 200kg/ha (CH) karena dapat meningkatkan hasil tanaman cabai.
English Abstract
The need for red chilies in Indonesia continues to increase along with the increasing population in Indonesia. Increasing red chili production depends on the amount of nutrients to support growth, especially the nutrient P which plays a role in forming the generative phase of the plant which can increase red chili production. The availability of P in the soil is very low because it is bound to other elements. Efforts that can be made to increase P availability are with fertilization and the help of phosphate solubilizing bacteria which can convert unavailable P into available for plants. The aim of carrying out this research is to analyze the effect of the application of inorganic phosporus fertilizer on the population of phosphate solubilizing bacteria and the availability of P in the soil as well as the production of red chili plants. This research activity will be carried out from September 2022 to June 2023 at the Experimental Field and laboratory of the Faculty of Agriculture, Brawijaya University. This study used a randomized block design (RAK) with 9 treatments and 3 replications. The treatments applied include 1) CA (No Fertilizer Control), 2) CB (Recommended Compound NPK Control), 3) CC (Recommended Single NPK Control), 4) CD (800 kg ha-1 NPK 15-10-12 + 200 kg ha-1 ZA + 200 kg ha-1 Test Phosphorus Fertilizer), 5) CE (800 kg ha-1 ZA + 300 kg ha-1 Rock Phosphate + 200 kg ha-1 KCl), 6) CF (800 kg ha-1 ZA + 300 kg ha-1 Phosphorus Fertilizer ), 7) CG (800 kg ha-1 ZA + 400 kg ha-1 Test Phosphorus Fertilizer + 200 kg ha-1 KCl), 8) CH (800 kg ha-1 ZA + 400 kg ha-1 Test Phosphorus Fertilizer + 200 kg ha-1 KCl), 9) CI (800 kg ha-1 ZA + 500 kg ha-1 Test Phosphorus Fertilizer + 200 kg ha-1 KCl). The parameters observed included the number of phosphate solubilizing bacterial populations, pH, C-organic, P-total, P-available, plant height, number of leaves, number and weight of chilies per plant and P uptake. The data obtained were then tabulated into Microsoft Excel. Next, an analysis of variance was carried out by ANOVA (Analysis of Variance) F test with a level of 5% in Genstat. Furture more with DMRT 5% was then carried out correlation and regression tests. The result of this study showed that the apllication of inorganic phosphorus fertilizer had a significant effect (P<0,05) on the population of phospate solubilizing bacteria, pH and P-available. And then, the application of inorganic phosphorus fertilizer had a significant effect (P<0,05) on growth at 35 HST and 42 HST inculding plant height and leaves. Application of inorganic phosphorus fertilizer had a significant effect (P<0.05) on the number and weight of chilies per plant as well as plant P uptake. Colleration and regresion test, there was a close relationship and positive correlation between phospate solubilizing bacterian and available P and P uptake (r=0.4340 and r=0.3368). There was a close relationship and positive correlation between P uptake and the number of chilies and the weight of chilies (r = 0.6116 and r = 0.6959). Based on the research results, the best treatment is ZA 800kg/ha + inorganic fertilizer P 400kg/ha + KCl 200kg/ha (CH) because it can increase the yield of chili plants.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0524040183 |
| Divisions: | Fakultas Pertanian > Ilmu Tanah |
| Depositing User: | Unnamed user with username nova |
| Date Deposited: | 06 May 2024 07:41 |
| Last Modified: | 06 May 2024 07:41 |
| URI: | http://repository.ub.ac.id/id/eprint/218884 |
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