The growth, development and yield of plant production are influenced by soil properties, both physical, chemical and biological properties of the soil. The physical properties of the soil include texture, structure, consistency, soil moisture (the ability of the soil to hold water) and soil permeability. Soil chemical properties include soil pH, cation exchange capacity and nutrient content. Nutrient content, consisting of mineral and organic content including nitrogen, phosphorus, potassium and other materials. Biological properties of soil are microorganisms that decompose organic matter that live in the soil. To get optimal yields on sandy soil, a solution is needed to solve the problem of physical, chemical and biological properties of sandy soil. This study uses secondary data aimed at knowing the physical, chemical and biological conditions that exist in several coastal areas in Indonesia. The results obtained treatment recommendations to improve the physical, chemical and biological conditions of sandy soil so as to produce optimal plant production. Based on the data obtained, to improve the condition of the sandy soil, several soil amendments can be used, including using compost, manure, biochar, and nitrogen fixing. The results showed that the addition of soil amendments improved soil quality, especially on the physical properties of the soil where in sandy soil the most important thing was the ability of the soil to hold water and maintain available nutrients in the soil. The most important soil chemical properties are the availability of nutrients in the soil. The responses obtained vary, especially in sandy soils and depend on the commodity of the plant. Keywords: biological, physical, chemical, sandy soil, soil

The main problem of eggplant cultivated was yellow leaf virus disease. It has caused production of eggplant decreased significantly. Control of eggplant yellow leaf virus disease are effective, cheap and easy were used of resistant varieties. There was no eggplant varieties were resistant to eggplant yellow leaf virus disease. The resistant of plant has actived with an inducer agent of systemic resistance.The aims of the research were to study the effect of induction of Clerodendrum japonicum and Mirabilis jalapa leaf extract on eggplant yellow leaf virus disease, and to study interaction between eggplant varieties and induction of leaf extract on eggplant yellow leaf virus disease.This experiment used Factorial Randomized Complete Blocks Design (RCBD) which consist 2 factors, first factor was eggplant varieties: green and purple. Second factor was induction of leaf extract: without induction, induction of Clerodendrum japonicum and Mirabilis jalapa leaf extract. Data obtained were analyzed with F test, and were continued with DMRT at 5 percent when significant.Results showed that induction of leaf extract depends on eggplant varieties were used. An green eggplant, induction of leaf extract not affected on the percentage of the level and intensity of eggplant yellow leaf virus disease, while an purple eggplant, induction of leaf extract can decreased the percentage of the level and intensity of eggplant yellow leaf virus disease. The yield of an green eggplant not increased on induction of leaf extract, while the yield incresed an purple eggplant on induction of leaf extract.

Budidaya tanaman kubis awalnya hanya ditanam di daerah dataran tinggi. Dalam perkembangannya, kubis mulai banyak ditanam di dataran menengah dan bahkan di dataran rendah. Hal ini seiring dengan ditemukannya varietas - varietas baru yang sesuai untuk daerah dataran rendah. Salah satu upaya yang dapat dilakukan petani kubis dataran rendah agar meningkatkan produktivitas kubis di daerah dataran rendah dengan  menggunakan varietas, dosis pemupukan dan perawatan yang tepat. Tujuan dari penelitian ini yaitu untuk mengetahui respon dua varietas Kubis dataran rendah terhadap dosis pupuk di dataran rendah. Penelitian dilakukan di lahan milik petani daerah  Kabupaten Kebumen. Penelitian dilaksanakan dengan menggunakan RAK  dengan dua faktor yaitu Varietas dan dosis pupuk. Data hasil pengamatan yang diperoleh dianalisis dengan analisis sidik ragam (ANOVA) dan diuji lanjut dengan metode LSD pada α=5% untuk mengetahui perbedaan antar perlakuan yang diuji. Hasil penelitian menunjukkan V2 yaitu Grand 22 mempunyai adaptasi yang lebih baik di daerah Surotrunan Kebumen. Pupuk rekomendasi P3 yaitu (150 kg/ha Urea,200 kg/ha SP36, 150 kg/ha KCL). Masih memungkinkan dilakukan penelitian lanjutan dengan dosis yang lebih tinggi.

Umbi Kentang adalah salah satu komoditas hortikultura yang diminati oleh masyarakat karena kandungan gizi dan dapat memenuhi kebutuhan karbohidrat. Saat ini kebutuhan umbi kentang belum memenuhi kebutuhan masyarakat secara optimal. Hal tersebut dikarenakan kebutuhan benih kentang yang masih kurang baik secara kualitas maupun secara kuantitas. Penelitian ini bertujuan untuk (1) Menentukkan Respon Benih kentang dengan teknik budidaya hidroponik dan aeroponik, (2) Mengetahui suhu larutan hara terbaik untuk diaplikasikan pada benih kentang. Metode yang digunakan Rancangan Acak Lengkap (RAL). Menggunakan percobaan factorial. Faktor yang dicoba yaitu teknik budidaya dan larutan hara. Teknik budidaya alternatif mempunyai 2 taraf yaitu Aeroponik, dan Hidroponik, sedangkan larutan suhu mempunyai 4 taraf yaitu suhu normal rata-rata 230C, 150C, 190C dan 240C. Total terdapat 8 perlakuan. Hasil penelitian dianalisis menggunakan uji F kemudian dilanjutkan menggunakan DMRT dengan taraf 5%. Hasil  penelitian menunjukkan Respon pertumbuhan kentang lebih baik menggunakan teknik aeroponik, sedangkan komponen hasil baik menggunakan teknik Hidroponik. Suhu larutan terbaik adalah 230C. Kata kunci: Budidaya Alternatif, Larutan Hara Suhu Rendah, Umbi Kentang

Corn as a commodity whose use is increasingly widespread today, namely as a direct food ingredient, animal feed and industrial raw material makes this commodity the 2nd commodity whose crop development and expansion has increased sharply in the last 10 years. The aims of this study were: (1) to find out the Pulut hybrids which have better morphological and agronomic characters than the comparison varieties, Pulut URI 1 and URI 2 Pulut varieties. Pulut URI 2 at the Banjarnegara rice field location. This research was conducted using a Randomized Completed Block Design, with 3 replications. If there is a difference in the mean value of the variety in the F test, it is continued with the Least significance different (LSD) test at the 5% significance level. Based on the results of the study, it was concluded that the application of foliar fertilizers did not have a significant effect on the observed variables including plant height, stem diameter, number of leaves, total leaf area, root dry weight and shoot dry weight. Keywords: Corn pulut, Fertilizer, Production