نتایج جستجو برای: paddy fields

تعداد نتایج: 250627  

2010
Xin Chen Li-Mei Zhang Ju-Pei Shen Zhihong Xu Ji-Zheng He Hailong Wang X. Chen

Purpose Ammonia oxidation plays an important role in global nitrogen cycle. However, little information is available on ammonia oxidizers in paddy soils. This study aimed to understand the controlling factors of ammonia oxidizers in the paddy soils. Materials and methods Three types of paddy soils were collected from southwest [Chongqing City (CQ)], central [Honghu City (HH)], and northeast [Pa...

Journal: Mycologia Iranica 2014

In order to determine genetic variability among 33 isolates of Fusarium semitectum, morpho- logical and molecular studies were carried out. Isolates from different paddy fields in the north of Iran were separated from each other in four morphotype groups. The isolates showed a high level of variation in aerial mycelium, color of colony, number of septa and growth rate on potato dextrose agar (P...

2013
Ikuko AKAHANE Tomoyuki MAKINO Yuji MAEJIMA Takashi KAMIYA Hiroyuki TAKANO Toshiyuki IBARAKI Makoto INAHARA

We evaluated the effects of soil washing with ferric chloride (FeCl3) on cadmium (Cd) concentrations in soil solutions and Cd absorption by two spinach cultivars in pot experiments. Soil samples were collected from washed and unwashed plots of rice paddy fields in Fukuoka and Toyama, Japan. Spinach pot cultivation was performed with the above mentioned soil under oxidative conditions. Before an...

Journal: :Environmental monitoring and assessment 2007
D R Satapathy R J Krupadam L Pawan Kumar S R Wate

The mangrove formations of Godavari estuary are due to silting over many centuries. The estuary covers an area of 62,000 ha of which dense Coringa mangrove forest spread in 6,600 ha. Satellite sensor data was used to detect change in the mangrove cover for a period of 12 years (1992-2004). It was found that an area of about 1,250 ha of mangroves was destroyed by anthropogenic interference like ...

ایمانی, سهراب, ثمین, نجمه, ساکنین, حمید, طبری, مهرداد,

The true bugs (Insecta: Heteroptera) are one of the most important insects which included several pest and beneficial species (predators and parasitoids) and therefore have important role in agroecosystems. The fauna of aquatic and semi-aquatic Heteroptera was studied in paddy fields and around aquatic ecosystems in some regions of Iran through 2004-2009. Totally 58 species from 14 families inc...

Journal: :Giscience & Remote Sensing 2021

Acquiring accurate and timely information on the spatial distribution of paddy rice fields corresponding yield is an important first step in meeting regional global food security ne...

ژورنال: علوم آب و خاک 2011
حدیثه نوری, , حمید زارع ابیانه, , حمیده نوری, , عبدالمجید لیاقت, , ولی الله کریمی, ,

Fertilizers in agriculture are potential sources of environmental pollution, especially in ground water quality and soil resources. Studying factors effective in water and nutrient transport through soil profile is helpful for nutrient management to minimize adverse impacts on environment and nitrate leaching below the root zone. In this study, the ground water level and nitrate leaching transp...

Journal: :Environmental Research Letters 2022

Abstract Indian river basins are intensively managed with country-specific agricultural practices of cultivating submerged paddy and uncontrolled groundwater (GW) irrigation. Numerical experiments the state-of-the-art land surface models, such as variable infiltration capacity (VIC), without incorporating region-specific practices, could be misleading. Here, we coupled VIC 2D GW model AMBHAS, I...

Journal: :JCS 2017
Tb. Ai Munandar Sumiati

Corresponding Author: Tb Ai Munandar Department of Informatics Engineering, Faculty of Information Technology, Universitas Serang Raya, Banten, Indonesia Email: [email protected], [email protected] Abstract: Nowadays, agricultural field is experiencing problems related to climate change that result in the changing patterns in cropping season, especially for paddy and coarse grains, pulses...

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