Judul: Pola Penggunaan Pestisida Oleh Petani Padi di Indramayu
Abstrak: Pestisida yang sudah dibatasi penggunaannya untuk lahan pertanian padi masih digunakan secara berlebihan oleh petani. Penggunaan pestisida secara berlebihan dapat mengakibatkan resistensi hama dan efek buruknya justru dapat menyebabkan ledakan hama yang akan diikuti dengan gagal panen. Penelitian ini bertujuan untuk mengidentifikasi pola perilaku petani padi dalam menggunakan pestisida di Kabupaten Indramayu. Data penelitian diperoleh langsung dengan cara wawancara langsung menggunakan kuesioner terstruktur di Indramayu, dengan 46 responden yang meliputi 36 petani yang menggarap lahan secara konvensional, dan 10 orang petani yang menggarap lahannya dengan menerapkan pengendalian hama terpadu. Petani PHT menghasilkan hasil panen 5-10 ton per hektar, petani konvensional menghasilkan 1-5 ton per hektar. Petani konvensional mengaplikasikan pestisida lebih awal dibandingkan dengan petani PHT. Sebanyak 70% petani padi di Indramayu sudah paham menggunakan pestisida, dan 93% petani padi paham dalam menggunakan herbisida.
Keyword: wereng batang cokelat, PHT, aplikasi pestisida

Judul: Pengetahuan, Sikap dan Tindakan Petani Padi dalam Penggunaan Pestisida di Kabupaten Indramayu Jawa Barat
Abstrak: Pests and diseases of rice are one of the biotic stresses that are able to reduce rice production. Knowledge of the population dynamics of pests is the first step in makingstrategy of insect pest control that should be effective, efficient, and environmentally friendly. Integrated Pest Management (IPM) is a pest management system based on an understanding of the population dynamics and the environment of a pest species, using a variety of compatible control techniques to keep pest populations below the economic threshold and to prevent the population to achieveeconomic injury level. Theobjective of the study wasto know the knowledge, the attitude, and the actions of the IPM field school (SLPHT) andnon-SLPHT farmers. Results showed that knowledge, attitude and action of rice farmers in the use of pesticides in Indramayu district West Java were similar between SLPHT and Non-SLPHT farmers.Both farmers still intensively use pesticides, even those farmers who have attended SLPHT. Farmer characteristics, such as age, education, side job, income, and farming experience did not correlate with the use of pesticides. The use of pesticides was only influenced by habit, praticality in use, and the effectiveness of it.
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Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
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