Nutrient Availability and Biological Properties of Paddy Soils Under Rainfed Traditional “Payatak” Farming Systems in Catubig Valley, Philippines
محل انتشار: مجله علوم و فناوری کشاورزی، دوره: 19، شماره: 7
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 49
فایل این مقاله در 15 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JASTMO-19-7_016
تاریخ نمایه سازی: 1 آذر 1402
چکیده مقاله:
To understand the long-term effects of payatak and conventional rice farming system on soil properties and soil quality, a soil survey was conducted in existing “payatak” and conventional rice fields in Catubig Valley, Northern Samar, Philippines. Chemical analyses revealed that soils under “payatak” are more acidic, with low EC, OM, and N content compared to those soils from conventional rice farms. However, available P and exchangeable K in “payatak” soils were higher than those in conventional. The available N varied significantly with time and sampling area and the mineral N levels fluctuated greatly within three weeks after land preparation. The BiologEcoPlate™ and subsequent correlation analysis have shown a partial characterization of microbial functional community attributed to several factors leading to differences in chemical properties of the two rice farming systems. These results imply that the levels of OM and the amount of exchangeable K could trigger a distinct microbial community functional structure. Variations in soil pH, EC, and the amounts of nutrients have also caused a shift of the microbial functional diversity as represented by correlations between Shannon–Weaver indices. Overall, the results would indicate that long term “payatak” and conventional rice farming system would result in different soil nutrient status and distinct microbial functional community which may affect the overall productivity and soil quality. Further analysis should be done to establish the relationship between soil microbial properties data onto long term productivity in paddy soils.
کلیدواژه ها:
نویسندگان
V. U. Ultra Jr.
Please change affiliation to: Botswana International University of Science and Technology, Palapye, Botswana.
G. M. Tan
University of Eastern Philippines-PRMC, Catubig, Northern Samar, Philippines ۶۴۱۸.
F. U. Lau
University of Eastern Philippines-PRMC, Catubig, Northern Samar, Philippines ۶۴۱۸.
M. R. O. Ponsalan
College of Agriculture, Fisheries and Natural Resources, University of Eastern Philippines, Catarman, Northern Samar, Philippines ۶۴۰۰.
E. A. Galo
College of Agriculture, Fisheries and Natural Resources, University of Eastern Philippines, Catarman, Northern Samar, Philippines ۶۴۰۰.
مراجع و منابع این مقاله:
لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :