PRODUCTIVITY INDEX RATING OF SOILS
{"Image DocumentName": "PRODUCTIVITY INDEX RATING OF SOILS", "Image ImageDescription": "Kandungan BOT. The low organic matter content may be due to the fact that the study sites have been intensively cultivated or are young fallow areas (2 to 5 years), where basically organic matter production or accumulation is low. Rendahnya kandungan BOT tanah juga disebabkan oleh panen biomasa tanaman secara kontinyu dan sedikitnya pengembalian BO sisa panen ke lahan. Faktor lainnya adalah tingginya kehilangan respirasi tanah akibat suhu tinggi (Brady and Weil, 1999), dan kehilangan erosi-tanah akibat tingginya intensitas hujan. Menurut Atkinson and Wright (1968), kandungan BOT biasanya menurun dengan penanaman yang terus-menerus. Dalal and Mayer (1990) juga melaporkan hal yang serupa. Atkinson H, Wright K (1968). Comparative effect of keeping soil under continuous cultivation and keeping it under continuous grass. Soil Sci., 28: Dalal RC, Mayer RJ (1990). Long term trends in soil fertility under continuous cultivation and cereal cropping in Southern Queensland. Australian J., Soil Res., 24:", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}