FIELD MOISTURE CAPACITY AND WILTING POINT OF SOILS
نویسندگان
چکیده
منابع مشابه
Developing Pedotransfer Functions for Estimating Field Capacity and Permanent Wilting Point Using Fuzzy Table Look-up Scheme
Study of soil properties like field capacity (F.C) and permanent wilting point (P.W.P) plays important roles in study of soil moisture retention curve. Pedotransfer functions (PTFs) provide an alternative by estimating soil parameters from more readily available soil data. In this study, a new approach is proposed as a modification to a standard fuzzy modeling method based on the table look-up ...
متن کاملPermanent Wilting Percentages of Soils Obtained from Field and Laboratory Trials.
In experimental work on the soil-water relations of plants in the field, it is advantageous to have some knowledge of the water-holding characteristics of the soil before the field trials are started. If the moisture equivalents or the field capacities and the permanent wilting percentages are known, an irrigation program for the various plots can be laid out in advance, with assurance that the...
متن کاملmorphology, geochemistry, mineralogy, and micromorphology of soils of hormozgan province in relation to parent materials
ویژگی های زمین شیمیایی، کانی شناسی، و میکرومورفولوژیکی خاک ها و سنگ مادر مربوطه در منطقه بین بخش های جنوبی زاگرس و خلیج فارس تا دریای عمان(استان هرمزگان، ایران) مورد بررسی قرار گرفت. هدف های این مطالعه شناسایی تغییرات در خصوصیات فیزیکی، شیمیایی، و ترکیب کانی شناسی خاک، مطالعه میکرومورفولوژی و تکامل خاک، و بررسی توزیع عنصر خاک بر اساس هوازدگی، پروسه های خاک و زمین شناسی جهت توصیف اثرات مواد مادر...
15 صفحه اولاثر ادوات مختلف خاک‌ورزی بر منحنی مشخصه رطوبتی خاک غالب شالیزار در استان گیلان
The common method of puddling is using a conventional tiller which requires long time of soil operations.In this study, the effects of tillage equipment on moisture characteristic curve of a paddy soil were investigated. The treatments included tillage equipment (T1: conventional tiller, T2: rotary puddler, T3: cone puddler, T4: tractor mounted rotivator) and number of puddlings (P1: puddling o...
متن کاملPredicting cation exchange capacity from hygroscopic moisture in agricultural soils of Western Europe
Soil cation exchange capacity (CEC) depends on the extent and negative charge density of surfaces of soil mineral and organic components. Soil water sorption also depends on the extent of such surfaces, giving thus way to significant relationships between CEC and hygroscopic moisture (HM) in many soils. In this work, we explored whether CEC could be accurately predicted from HM in agricultural ...
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ژورنال
عنوان ژورنال: Soil Science
سال: 1922
ISSN: 0038-075X
DOI: 10.1097/00010694-192208000-00008