A review of soils and crops in the Bukidnon Highlands of Northern Mindanao, the Philippines
2014
Dejarme-Calalang, GM. | Colinet, G.
Introduction. This article reviews soil and crop production information from Bukidnon, Northern Mindanao, the Philippines. It focuses on the parent materials involved in forming Bukidnon soils, clay forming minerals, soil classification, types and location distribution, physico-chemical characteristics, soil potentialities and constraints, and the yields of the major crops. Literature. The information discussed was gathered from on-line journals, a compilation of agricultural research reports published in Northern Mindanao, published theses, government data and reports, and books. Bukidnon has existing soil information that could be useful for assessing and monitoring soil fertility and in establishing a regional Land Information System (LandIS). Soils in the Province are classified according to Soil Order, Great Group and soil type under the USDA Soil Taxonomic Classification. Data on crop production yields are also available. Soil information is intended more for crop fertilization planning at the broader scale. Studies on geomorphopedology and the interactions of elements within the soil are scarce. The relationship between soil formation and its characteristics and plant responses is not discussed here. Conclusion. The recommendations arising from this study are: (1) to conduct in-depth geomorphopedological studies in marginal areas of undifferentiated soils, (2) to study the relationship between soil characteristics and crop responses including nutrient assimilation by plants, focusing on phosphorus (P), and (3) to develop a generic protocol and establish a LandIS for mountain areas that can be replicated in other areas in Mindanao, the Philippines.
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