Browsing by Author "Rina D. Ningsih"

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    Pengaruh Pemupukan N, P, dan K Terhadap Hasil Padi Lokal di Lahan Pasang Surut Kalimantan Selatan
    (Balai Besar Penelitian Tanaman Padi, 2010-11-18) Aidi Noor; Rina D. Ningsih; A. Sabur
    Abstract Effect of N, P, and K Fertilization on Yield of Local Rice Variety in Tidal Swamp of South Kalimantan. There were a total of 182,540 ha tidal swampland area available in South Kalimantan which were currently having low rice productivity. The low rice productivity in this area were mainly due to the biophysical problems of the land, the used of local rice varieties mostly grown by farmers, and less amounts of fertilizers applied. The experiment to evaluate the effect of N, P, and K fertilizers on the growth and yield of rice grown in tidal swampland ecosystem has been conducted in Karang Indah Village, Barito Kuala District, South Kalimantan in 2006. Treatments were: (1) N (urea 100 kg/ha), (2) NP (urea 100 kg/ha + SP36 50 kg/ha). (3) NK (urea 100 kg/ha + KCl 50 kg/ha), (4) PK (SP36 50 kg/ha + KCI 50 kg/ha), (5) NPK (urea 100 kg/ha + SP36 50 kg/ha + KCI 50 kg/ha), 6) N, P, K (urea 150 kg/ha + SP36 50 kg/ha + KCl 50 kg/ha). Results of this experiment indicated that complete fertilizers (NPK, N, P, K, NP, NK and PK) gave rice yields 2.70-3.45 t/ha, while the single N fertilizer gave 2.40 t/ha. The NPK fertilizers (urea 100 kg/ha + SP36 50 kg/ha + KCI 50 kg/ha) gave 3.40 t/ha. Further increase of urea by 50 kg/ha did not significantly increased grain yield. Abstrak Produktivitas padi di lahan pasang surut di Kalimantan Selatan masih rendah, selain karena masalah biofisik lahan, juga karena sebagian besar petani masih menggunakan varietas lokal yang dipupuk secara tidak tepat, atau bahkan tanpa dipupuk. Penelitian ini bertujuan untuk mengevaluasi pengaruh pupuk K terhadap hasil padi lokal di lahan pasang surut. Penelitian pupuk N. P. dan k terhadap hasil padi lokal di lahan pasang surut. Penelitian dilaksanakan di Desa Karang Indah, Kabupaten Barito Kuala, Kalimantan Selatan pada tahun 2006. Perlakuan pemupukan berupa: (1) N (urea 100 kg/ha), (2) NP (urea 100 kg/ha + SP36 50 kg/ha), (3) NK (urea 100 kg/ha + KCl 50 kg/ha), (4) PK (SP36 50 kg/ha + KCl 50 kg/ha), (5) NPR (urea 100 kg/ha + SP36 50 kg/ha + KCI 50 kg/ha), dan (6) N,PK (urea 150 kg/ha + SP36 50 kg/ha + KCl 50 kg/ha). Hasil penelitian menunjukkan bahwa tanaman padi lokal yang dipupuk NPK, N, P, K, NP, NK, dan PK menghasilkan antara 2,70-3,45 t/ha GKG, sedangkan yang dipupuk dengan N saja hanya menghasilkan 2,40 t/ha GKG. Pemupukan NPK (urea 100 kg/ha + SP36 50 kg/ha + KCl 50 kg/ha) menghasilkan 3,40 t/ha GKG lebih tinggi dibandingkan pemupukan N saja, peningkatan dosis pupuk urea 50 kg/ha tidak secara nyata meningkatkan hasil padi.
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    Prospek Pengembangan Lahan Rawa Sebagai Sumber Produksi Padi di Kalimantan Selatan
    (Balai Besar Penelitian Tanaman Padi, 2010-11-18) Rina D. Ningsih; Aidi Noor
    Abstract Prospect of Swampland Development as a Source of Rice Production in South Kalimantan. The role of tidal land and lowland swamps for agricultural development especially for the production of food crops as well as supporting the state of the national food security will be increasingly important when it was associated with the depletion of the fertile lands. Some of the constraints faced in the utilization of swamp land, were not only those related with the land biophysical but also those related with the socio-economic, institutional, and infrastructure issues. It was expected at when these above-mentioned problems can be handled, the vamp land would have a great potential as a source of rice production in the country. The increase of rice production in South Kalimantan might be done through: (1) extension, increase more planting area. (2) increase the planting intensity, and (3) increase crop productivity. The improvement of rice planting areas in the swamp land in South stan is still possible, as the total of tidal and swampy area available were 183,540 and 205,545 ha, respectively. Among them, a total of 38,780 and 90.1078 ha of tidal and swampy area, respectively, were ready to utilize for growing rice. The swampland was also possible to be planted twice a year with adaptive rice variety Results of experiment in South Kalimantan indicated that by growing the right variety of rice, its production could reach up to 4.0 and 50 that in tidal and swampy areas, respectively Kalimantan Abstrak Beberapa kendala yang dihadapi dalam pengembangan pertanian di lahan rawa, bukan saja masalah biobisik lahan, tetapi juga masalah sosial ekonomi, kelembagen, dan infastruktur yang belum memadai. Apabila kendala kendala bofisk lahan dapat dikendalikan, diharapkan lahan rawa mempunyai potensi besar sebagai sumber produksi padi. Strategi peningkatan produksi padi di Kalimantan Selatan dapat dilakukan dengan (1) peningkatan luas arcal tanam, (2) peningkatan intensitas tanam, dan (3) peningkatan produktivitas. Peningkatan luas areal tanam padi di lahan rawa Kalimantan Selatan masih memungkinkan, dengan pertimbangan masih tersedia lahan pasang surut seluas 38.780 ha dan lebak seluas 90.078 ha yang dapat dimanfaatkan untuk pengembangan tanaman padi. Peningkatan produksi padi di lahan rawa dapat juga dilakukan dengan meningkatkan intensitas tanam, melalui penanaman lahan rawa dua kali setahun, yang sampai saat ini baru terlaksana sekitar 5%. Peningkatan produktivitas padi di lahan rawa dapat dilakukan dengan pendekatan pengelolaan tanaman dan sumberdaya lahan secara terpadu yang meliputi perbaikan kualitas lahan dan penggunaan varietas yang adaptif. Hasil penelitian di lahan rawa Kalimantan Selatan menunjukkan dengan varietas padi yang tepat di lahan pasang surut produktivitas padi dapat mencapai 4.0 tha dan di lahan lebak dapat mencapai hasil >50 t/ha