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All Journal International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET)
Nor Azma Yusuf
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education

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STOMACH POISON RESPONSE TO KIPAHIT LEAF EXTRACT Tithonia diversifolia AGAINST FALL ARMYWORM LARVAES Spodoptera frugiperda J. E. Smith. Dian Dhika; Lisdayani; Nurhayati; Nor Azma Yusuf
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 1 No. 1 (2021): DECEMBER
Publisher : RADJA PUBLIKA

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Abstract

Corn (Zea mays L.) is an important food crop in Indonesia, whose production is threatened by the invasive pest Spodoptera frugiperda (Fall Armyworm/FAW). This pest causes significant damage to crops and drastically reduces yields. Excessive use of chemical insecticides to control FAW has caused various negative impacts. Therefore, the development of plant-based botanical insecticides is a safer and more sustainable control alternative.The purpose of this study was to observe the toxicity response of stomach poison extract of T. diversifolia kipahit leaves to S. frugiperda larvae. This study was conducted in the laboratory of the Faculty of Agriculture, Islamic University of North Sumatra, Jl. Karya Wisata Gedung Johor. Medan Johor District, Medan City, North Sumatra. With an altitude of ± 25 m above sea level (meters above sea level) with flat topography. This study was conducted in the laboratory using a Non-factorial Completely Randomized Design using several treatments, namely K0: Control, K1: 0.1%, K2: 0.2%, K3: 0.3%, K4: 0.4%, and K5: 0.5%. The stomach poison of T. diversifolia kipahit leaf extract had a very significant effect on the mortality of S. frugiperda larvae, showing that the highest mortality was at the K5 concentration (0.5%) reaching 23-90% at 2-8 HSA and the lowest percentage of larval mortality, namely the K0 concentration (control), had a mortality of 3-8% at 6-8 HSA.
THE EFFECT OF PALM OIL SHELL BIOCAR AND P AND K FERTILIZER ON THE GROWTH AND PRODUCTION OF SOYBEAN PLANTS (Glycine max) Ichpan Zulfansyah; Fuad; Nurhayati; Nor Azma Yusuf
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 3 No. 7 (2024): JUNE
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v3i7.1072

Abstract

This study aimed to determine the effect of palm kernel shell biochar and phosphorus (P) and potassium (K) fertilizers on the growth and production of soybean (Glycine max) plants. The study was conducted at the Experimental Field of the Faculty of Agriculture, Al Washliyah University, Medan, using a factorial Randomized Block Design (RBD) with two treatment factors, namely biochar (B0, B1, B2, B3) and P and K fertilizers (P0, P1, P2, P3). The parameters observed included plant height, number of pods, seed weight, and other production parameters. The results showed that both biochar and P and K fertilizers independently had a very significant effect on all growth and yield parameters of soybean. The best treatment was the combination of B3 (6 kg/plot) and P3 (24 g P + 44 g K), which produced the highest average in plant height, number of pods, and seed weight. However, the interaction between biochar and P and K fertilizers did not show a significant effect on the growth and production of soybean plants. This study indicates that the appropriate application of biochar and P and K fertilizers can significantly increase soybean growth and yield, although the combination did not show a statistically significant synergistic effect. These findings support the use of biochar as an alternative organic material in sustainable agricultural systems.
Co-Authors Dian Dhika Fuad Ichpan Zulfansyah Lisdayani Nurhayati