نتایج جستجو برای: crop residue

تعداد نتایج: 115963  

Journal: :iranian journal of toxicology 0
azadeh emami msc of toxicology, shahid sadoughi university of medical sciences, yazd, iran. zahra mousavi department of pharmacology & toxicology, pharmaceutical sciences branch, islamic azad university (iaups), tehran, iran. vahid ramezani phd of pharmaceutics, shahid sadoughi university of medical sciences, yazd, iran. shahram shoeibi phd of food chemistry, food and drug laboratory research center, tehran, iran. hossein rastegar phd of pharmacology, food and drug laboratory research center, tehran, iran. maryam amirahmadi phd of toxicology, food and drug laboratory research center, tehran, iran.

background: pistachio is one of the main nutrients, not only as a strategic crop but also as a main type of nut, in iranians’ food cycle. the aim of this study was to measure the relative safety of iranian pistachio based on the standard pesticide’s residue limits, which should be monitored and assessed in the cultivation of pistachio in order to confirm its public health. methods: fifty sample...

ژورنال: علوم آب و خاک 2011
حسن پاک نیت, , سید عبدالرضا کاظمینی, , فرود صالحی, , محمدجعفر بحرانی, , نجفعلی کریمیان, ,

Crop residues are beneficial substances that can bring about important changes in soil biological, chemical and physical properties and can also increase or stabilize crops yield. A field experiment was carried out at Research Station of College of Agriculture, Shiraz University, Shiraz, Iran, to determine the effects of wheat (Triticum aestivum L.) residue rates in combination with N levels on...

2015
Guoqing Hu Xiao Liu Hongbo He Wei Zhang Hongtu Xie Yeye Wu Jiehua Cui Ci Sun Xudong Zhang Xiujun Wang

In conservation tillage systems, at least 30% of the soil surface was covered by crop residues which generally contain significant amounts of nitrogen (N). However, little is known about the multi-seasonal recoveries of the N derived from these crop residues in soil-crop systems, notably in northeastern China. In a temperate agro-ecosystem, 15N-labeled maize residue was applied to field surface...

Journal: :journal of agricultural science and technology 2015
t. pandiaraj s. selvaraj n. ramu

the objective of this study was to investigate the effects of addition of pulses in crop sequences, crop residue management, and application of fertilizer n on soil nitrogen content, soil organic carbon, nutrient uptake, and its consequences for wheat yields. the field experiments were carried out from 2009 to 2012 in the sub-humid and sub-tropical zone of northern india. the treatments were (i...

Journal: :علوم گیاهان زراعی ایران 0
حسین صادقی محمد جعفر بحرانی عبدالمجید رونقی محمد حسین رئوفت علی اکبر کامگار حقیقی محمد تقی آساد

a field study was conducted at the college of agriculture, shiraz university, shiraz, iran to evaluate the effect of different crop residue and nitrogen rates on yield and yield components of two dryland wheat (triticum aestivum l.) cultivars. the experiment was conducted as a strip split plot with four replications. vertical plots included two dryland current wheat cultivars (azar2 and nicknej...

Journal: :Kansas Agricultural Experiment Station Research Reports 1975

2006
C.S.T. Daughtry P. C. Doraiswamy

Management of plant litter or crop residues in agricultural fields is an important consideration for reducing soil erosion and increasing soil organic C. Current methods of quantifying crop residue cover are inadequate for characterizing the spatial variability of residue cover within fields or across large regions. Our objectives were to evaluate several spectral indices for measuring crop res...

Journal: :پژوهش های زراعی ایران 0
مجید رحیمی زاده احمد زارع فیض آبادی علی کاشانی

this study was conducted under cold temperate climate condition in khorasan during 2006-2008 growing seasons to determine the suitable wheat-based double cropping systems for increase nitrogen agronomic efficiency. a randomized complete block design in split-split plot arrangement with three replicates was used. main plots were crop rotation with five different rotations including wheat:wheat, ...

2012
A Singels

A layer of harvest residues from the previous crop can reduce wasteful evaporation from the soil surface and thereby increase the efficiency of use of limited water resources for agricultural production. The practice of harvesting sugarcane green and leaving crop residues in the field, as opposed to burning the residue, has been re-adopted in many sugarcane industries worldwide. However, a bett...

2014
Moonmoon Hiloidhari D C Baruah

Biomass based energy generation is one of the major focus areas of renewable energy programs in India. The strength of India’s biomass resources mostly lies in the agricultural sector. A large quantity of crop residue biomass is generated in India. However, crop residue biomasses are distributed resources with variation in spatio-temporal availability and its characteristics. Competing uses of ...

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