Astutik, Endang Puji (2019) Pengaruh Perbedaan Interval Pemberian Air Irigasi terhadap Pertumbuhan dan Produksi Tanaman Kacang Tanah (Arachis hypogaea L.) di Inceptisol Tuban. Sarjana thesis, Universitas Brawijaya.
Abstract
Kacang tanah merupakan tanaman yang banyak memiliki nilai penting. Di Indonesia, kebutuhan konsumsi terhadap kacang tanah naik secara terus menerus, namun tidak diimbangi dengan stabilitas total produksi per tahun lantaran penyempitan luas areal panen yang turut memengaruhi total produksi. Tahun 2015 secara nasional luas areal panen kacang tanah seluas 454.349 ha menyempit menjadi 363.832 ha pada tahun 2017. Hal demikian berbanding lurus dengan total produksi sebesar 605.449 ton tahun 2015 yang menurun menjadi 480.360 ton tahun 2017. Salah satu upaya intensifikasi lahan untuk mengoptimalkan produksi tanaman disaat luas areal panen menyempit adalah dengan mengatur irigasi air ke tanaman. Tujuan penelitian adalah untuk membandingkan pengaruh perbedaan interval irigasi air terhadap fluktuasi kandungan air tanah dan temperatur tanah serta dampaknya pada pertumbuhan dan produksi tanaman kacang tanah di musim tanam II (akhir musim hujan). Penelitian dilakukan di rumah plastik pada bulan April hingga Agustus 2018. Adapun rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap dengan 9 perlakuan dan 3 kali ulangan. Perlakuan yang diaplikasikan antara lain: P0 (kontrol atau irigasi sesuai data curah hujan), P1 (irigasi sehari sekali + CH), P2 (irigasi 3 hari sekali + CH), P3 (irigasi 5 hari sekali + CH), P4 (irigasi 7 hari sekali + CH), P5 (irigasi 9 hari sekali + CH), P6 (irigasi 11 hari sekali + CH), P7 (irigasi 13 hari sekali + CH), dan P8 (irigasi 15 hari sekali + CH). Data primer penelitian diperoleh dengan mengamati tinggi tanaman, jumlah daun, produksi tanaman, kadar air tanah, temperatur tanah, dan beberapa analisis laboratorium yang mendukung. Seluruh data yang terkumpul dianalisis ke anova, jika hasilnya berbeda nyata dengan anova dilanjutkan ke uji Duncan taraf 5% yang kemudian dilanjutkan dengan regresi linier sederhana. Persentase kadar air tanah mengalami peningkatan sesuai dengan interval pemberian air irigasi dikarenakan sifat tanah yang mampu menyimpan air. Sedangkan, temperatur tanah rata-rata tidak mengalami perbedaan walaupun mengalamai fluktuasi selama pertumbuhan tananam kacang tanah dikarenakan kedalaman pengukuran, kondisi iklim dan jenis varietas tanaman adalah sama. Hasil menunjukkan produksi kacang tanah P1, P2, dan P3 tidak berbeda nyata. Perlakuan P3 (irigasi 5 hari sekali) secara efektif mampu memberikan produksi tanaman yang lebih optimal dengan asumsi efisiensi biaya produksi dibandingkan dengan P1 (interval 1 hari sekali) atau P2 (interval 3 hari sekali).
English Abstract
Groundnut are crop which has many important values. In Indonesia, the consumption needs of groundnut increase continuously, yet it is not balanced with the stability of the total production per year due to the narrowing of the harvested area which also affects the total production. In 2015 the area of harvesting groundnut narrowed from 454,349 ha to 363,832 ha in 2017. In the same vein, the total production decreased from 605,449 tons in 2015 to 480,360 tons in 2017. One of the intensifyng land efforts to optimize the crop production when the harvest has narrowed area is by regulated the water irrigation into plants. The purpose of the study was to compare the effect of interval differences in water irrigation on the fluctuations of soil water content and soil temperature. Also, it was aimed to probe the impact on the growth and production of groundnut crop in 2nd planting season (the end of the rainy season). The study was conducted in plastic houses in April to August 2018. The research design was a completely randomized design with 9 treatments and 3 replications. The applied treatments include: P0 (control or irrigation according to rainfall data), P1 (once irrigation in a day + CH), P2 (once irrigation every 3 days + CH), P3 (once irrigation every 5 days + CH), P4 (once irrigation every 7 days + CH), P5 (once irrigation every 9 days + CH), P6 (once irrigation every 11 days + CH), P7 (once irrigation every 13 days + CH), and P8 (once irrigation every 15 days + CH). The primary data of the study were obtained by observing plant height, number of leaves, crop production, soil moisture content, soil temperature, and several supporting laboratory analyzes. All data were analyzed by analysis of variance, if the results were significantly different then the Duncan test was conducted at the level of 5% which then proceeded to a simple linear regression test. The percentage of soil water content has increased according to the interval of giving irrigation water due to the nature of the soil that is able to store water. Meanwhile, the average soil temperature had no difference even though it experienced fluctuations during the growth of groundnut crop. It was because the depth of measurement, climate conditions and types of plant varieties were the same. The results showed that peanut production P1, P2, and P3 were not significantly different. Irrigation with 5-day intervals was effectively able to provide more optimal crop production with the assumption that the production costs used were smaller than the intervals of once in a day or once every 3 days.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FP/2019/35/051906729 |
| Uncontrolled Keywords: | - |
| Subjects: | 600 Technology (Applied sciences) > 634 Orchards, fruits, forestry > 634.6 Tropical and subtropical fruits > 634.65 Papayas, avocados, mangosteens > 634.651 Papayas > 634.651 8 Special cultivation methods; Fertilizers, soil conditioners, growth regulators |
| Divisions: | Fakultas Pertanian > Agroekoteknologi |
| Depositing User: | Endang Susworini |
| Date Deposited: | 10 Aug 2020 06:36 |
| Last Modified: | 10 Aug 2020 06:36 |
| URI: | http://repository.ub.ac.id/id/eprint/172577 |
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