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All Journal SAINS TANAH - Journal of Soil Science and Agroclimatology PUBLIKASI PENELITIAN TERAPAN DAN KEBIJAKAN
YUSTISIA YUSTISIA
Balai Pengkajian Teknologi Pertanian Sumatera Selatan
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Education Environmental Science Public Health Social Sciences

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YIELD COMPONENTS CHARACTERISTICS OF PROVITA MAIZE VARIETY IN DRYLAND:CORRELATION AND REGRESSION WITH GRAIN YIELD Yustisia, Yustisia; Amirullah, Johannes
Publikasi Penelitian Terapan dan Kebijakan Vol 2 No 1 (2019): Publikasi Penelitian Terapan dan Kebijakan
Publisher : Badan Penelitian dan Pengembangan Daerah Provinsi Sumatera Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46774/pptk.v2i1.89

Abstract

The development of high yielding varieties is an alternative to increasing corn productivity in dry land agroecosystems. High-yielding varieties can be selected through the character of the yield components. The assessment was conducted in Talang Taling Village, Gelumbang District, Muara Enim Regency, South Sumatra in May-September 2018. Urea, TSP, KCl, manure and dolomite were given at a dose 350 kg ha-1, 175 kg ha-1, 75 kg ha-1, 2,000 kg ha-1 and 1,000 kg ha-1, respectively. The components of yield observed were ear length, ear diameter, number of rows ear-1, number of kernels row-1, number of kernels ear-1, weight of 1000 grains and weight of kernels ear-1. The correlation between ear length, ear diameter, the number of kernels ear-1 and grain yield was positively significant. Regression analysis showed that there was a highly significant relationship between ear length and grain yield and there was a significant relationship between number of kernels ear-1 and ear diameter and grain yield. Selection highly yield maize variety can be done on the basis of these characters. Characteristics of yield components of ProvitA variety are the length of cobs 13.00-18,90 cm, diameter of cobs 3.90-4.90 cm and number of kernels 204.00-496 grains cobs-1.
Dynamics of soil fertility and rice productivity in irrigated rice fields under different cropping patterns Muslim, Rufaidah Qonita; Suprihatin, Agus; Fatimah, Anden Siti; Waluyo, Waluyo; Suparwoto, Suparwoto; Jumakir, Jumakir; Yustisia, Yustisia; Sri Ratmini, Niluh Putu; Raharjo, Budi
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 1 (2025): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i1.98500

Abstract

Irrigated rice fields serve as the primary land for rice production. Whether continuous rice cultivation or alternating with secondary crops, the cropping pattern in these filelds depends on water supply. These differences in cropping patterns will affect the soil's nutrient dynamics and rice productivity. This research aims to analyze the soil fertility dynamics and rice productivity in irrigated rice fields under different cropping patterns. The study used an oversite design with two factors, namely cropping patterns (rice-rice-rice (R-R-R), rice-rice-corn (R-R-C), and rice-rice-soybean (R-R-S)), and superior varieties (Inpari 23 and Mentik wangi). The results showed that the overall fertility of irrigated rice fields was low, with crucial limiting factors being deficiencies in total N, available P, and K nutrients. Differences in cropping patterns on Inceptisol significantly affect available P. The R-R-R cropping pattern, including the Inpari 23 and Mentik wangi varieties, provided the highest productivity, reaching 6.5-6.9 t ha-1. Selecting the right superior varieties and those by cropping patterns can increase the dry milled grain (MDG) yields by 23.52-30.1% compared to other superior varieties. Sufficient water availability throughout the growing phase can increase rice productivity by 33.3 -56.2% (1.5-2.3 times). Therefore, the key to intensive rice field management is not only to pay attention to soil fertility (nutrient dynamics), fertilization (organic and inorganic), and pest and disease control, but also to ensure the availability of sufficient water during cultivation and to use superior varieties. This research is beneficial for farmers, stakeholders, and the government in efforts to increase food security.
Co-Authors Agus Suprihatin Amirullah, Johannes Budi Raharjo Fatimah, Anden Siti Jumakir Jumakir Muslim, Rufaidah Qonita Sri Ratmini, Niluh Putu Suparwoto Suparwoto Waluyo Waluyo