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All Journal JURNAL AGRILAND Jurnal Penelitian Kelapa Sawit Jurnal Agronomi Tanaman Tropika (JUATIKA) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET)
Murni Sari Rahayu
Faculty Of Agriculture Universitas Islam Sumatera Utara
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education

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CHANGES IN RAINFALL ON PLANTING AREA AND OIL PALM PRODUCTION IN THE HIGHLANDS OF DELI SERDANG DISTRICT, NORTH SUMATRA Sumarno; Yenni Asbur; Murni Sari Rahayu
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 4 No. 10 (2025): SEPTEMBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v5i1.1313

Abstract

The research was conducted from February to April 2024 in Deli Serdang Regency, North Sumatra Province. Rainfall is a very important climatic factor in influencing crop growth and production, including oil palm. The purpose of this study was to examine how rainfall affects the planting area and production of oil palm in the highlands of North Sumatra. The study used secondary data in the form of information on planting area and production in Deli Serdang Regency during 2019-2023, obtained from the Deli Serdang Regency Agriculture Office and the Food Security and Horticulture Office, as well as the Meteorology, Climatology and Geophysics Agency in Deli Serdang, North Sumatra. The results showed that there was a negative correlation between rainfall and oil palm planting area and production, with values of -0.599 and -0.645, respectively. This means that there is a moderate negative relationship between rainfall and oil palm planting area and production, where higher rainfall results in lower oil palm planting area and production, although this is not statistically significant.
MAIZE GROWTH RESPONSE TO VARIOUS TYPES AND DOSAGES OF ORGANIC MULCH IN THE DRYLANDS OF SOUTHEAST ACEH Rada Mayang Sari; Murni Sari Rahayu; Yayuk Purwaningrum
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 4 No. 10 (2025): SEPTEMBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v5i1.1541

Abstract

Drylands face physical and chemical constraints that often limit maize growth. The use of organic mulch is a potential strategy to improve growing conditions and nutrient availability. This study aims to examine the growth response of maize to the application of various types and dosages of organic mulch in dryland. The research utilized a factorial Randomized Block Design (RBD) with two factors: mulch type (Chromolaena odorata, bamboo leaves, and rice husk) and mulch dosage (0, 15, 20, and 25 tons/ha). Parameters observed included plant height at 60 days after planting (DAP) and total plant fresh weight at harvest. The results indicated no significant interaction between mulch type and dosage for all parameters. However, mulch dosage had a highly significant effect on plant height, while both mulch type and dosage independently had a significant effect on plant fresh weight. The application of mulch at a dosage of 15 tons/ha was the effective minimum threshold for significantly increasing growth compared to the control. Bamboo leaf mulch provided the best response to biomass accumulation, achieving the highest average fresh weight (232.08 g). Increasing the dosage beyond 15 tons/ha showed a trend of non-proportional returns (diminishing returns). Consequently, the use of bamboo leaf mulch at a dosage of 15 tons/ha can be recommended to efficiently enhance maize productivity in dryland.
Co-Authors Ade Rahayu Adri Airil Nasution Chairani Siregar Dedi Kusbiantoro Fitrawan Purwanto Ginting Johannes Pardede Khairunnisyah Khairunnisyah M. Firdaus Markhaini Markhaini Noverina Chaniago Nurhayati Nurhayati Rada Mayang Sari Rizkon Jadida Pulungan Saur Ernawati Manik Sumarno Syamsafitri Syamsafitri Thoriq Abdul Aziz Harahap Yayuk Purwaningrum Yayuk Purwaningrum Yenni Asbur Yusfachri Perangin-Angin