. Carnegie Institution of Washington publication. VAN BREDA DE HAAN'S WILT OF PEANUT. In December 1905, J. van Breda de Haan prepared a paper (Teysmannia, 1906) con- cerning a bacterial disease of the peanut Arachis hypogwa, known as "hamawedang,"and observed by him in October of that year in the departments of Koeningan and Cheribon, Cheribon Residency, Java. The following is an abstract of this paper: The soil in this portion of Java is chiefly red or red brown, sometimes black-sandy, very porous, and occasionally clayey. Often the stiff clay cracks open in times of drouth. Irrigat
. Carnegie Institution of Washington publication. VAN BREDA DE HAAN'S WILT OF PEANUT. In December 1905, J. van Breda de Haan prepared a paper (Teysmannia, 1906) con- cerning a bacterial disease of the peanut Arachis hypogwa, known as "hamawedang,"and observed by him in October of that year in the departments of Koeningan and Cheribon, Cheribon Residency, Java. The following is an abstract of this paper: The soil in this portion of Java is chiefly red or red brown, sometimes black-sandy, very porous, and occasionally clayey. Often the stiff clay cracks open in times of drouth. Irrigation is largely practiced and rotation of crops, c. g., sugar-cane is planted for cuttings every third year, then katjang tolok (Phascolus radiatus), after which the peanut (katjang soeoek, katjang holle) is planted, followed by rice. Much care is usually given to the culture of katjang soeoek, low beds of about a yard wide by 4 yards in length with shallow channels be- tween them being used for this purpose. The channels render irriga- tion easy and also allow of thorough drainage and easy access to the plots for weeding, etc. The fields are irrigated every week or less often. There is no trouble any- where from ground- water. The variety of Arachis hypogaa used chiefly is the katjang holle or Bandoeng, which ripens in about 3 months from date of planting. It is planted chiefly in the East Monsoon in fields that can be irrigated. The product is sold to Chi- nese merchants, who in recent years have paid. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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