Results 251 to 260 of about 71,185 (308)

Micro- and Nanoplastics in Agricultural Crop Systems: From Environmental Particles to Plant Phenotypes and Food-System Relevance. [PDF]

Plants (Basel)
Zubair M, Karim A, Noor M, Bibi L, Qamar A, Bashir MA, Akhtar MT.   +6 more
europepmc   +1 more source

Screening for unconventional pesticides in tropical fruits and vegetables from Hainan, China. [PDF]

PLoS One
Zhang Y, Xu L, Wang C, Liu X, Jiao W, Chen Y.   +5 more
europepmc   +1 more source

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Characteristics of crop residues

Agricultural Wastes, 1986
Abstract This paper reports the results of work carried out to determine the characteristics of the residues of important agricultural crops in North India. Density, equilibrium moisture content, higher calorific value and the results of chemical, proximate, elemental and thermogravimetric analyses of the crop residues are reported and discussed.
B.S. Pathak, A.K. Jain, A. Singh
openaire   +1 more source

Crop Residue Management

1991
In less affluent countries such as those in South and Southeast Asia, grain is directly used for human consumption, and crop residues are the main source of fodder for animals. In addition, crop residues have several other uses (Table 1). Crop residues are certainly an asset in these countries and seldom are left in the field.
Rajendra Prasad, J. F. Power
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Pyrethroid insecticide residues on vegetable crops

Pest Management Science, 2001
Abstract Pyrethroid insecticides were applied on various vegetable crops as foliar treatments to determine dissipation rates. On Chinese broccoli (Guy Lon), Chinese mustard (Pak Choi) and Chinese cabbage (Kasumi, napa), fenvalerate was persistent with residues of 0.10, 0.14 and 0.11 mg kg −1
B D, Ripley, G M, Ritcey, C R, Harris, M A, Denommé, P D, Brown   +4 more
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Visualizing soil surfaces and crop residues

IEEE Computer Graphics and Applications, 1993
A test case for visualizing field and laboratory data pertaining to soil erosion and infiltration is examined. Several visualization techniques were used to derive image data from an experiment in which the effect of a sequence of five rainfalls on a laboratory-formed soil surface was measured.
Christopher J. Moran, Guy Vézina
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Identification of pentachlorobenzonitrile residues in field crops

Bulletin of Environmental Contamination and Toxicology, 1977
We recently received several carrot extracts from another FDA district laboratory for identification of a material present in each of the extracts which had a GLC retention time inconsistent with that of any known pesticide. The material, which was eluted from Florisil with 15% ether in petroleum ether (AOAC, par.
T L, Barry, F M, Gretch, J D, Rosen
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Parathion residues on leafy crops

1963
In Germany, during World War II, G. SchraDer developed the compound E-605 (O,O-diethyl-O-p-nitrophenyl thiophosphate) which is commonly known as parathion. It was soon discovered that this organophosphate was an extremely effective insecticide against a number of insect species.
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The determination of residues of dichlorvos in crops and tissues

The Analyst, 1970
An analytical method for determining residues of dichlorvos with a limit of determination of 0·01 p.p.m. is described. It is intended for use by those laboratories which carry out residue analysis for regulatory purposes, with an emphasis on speed, specificity and sensitivity.Residues of dichlorvos are extracted with either dichloromethane or ethyl ...
K E, Elgar, R G, Marlow, B L, Mathews
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Effects of prior crop residue management on microbial properties and crop residue decomposition

Applied Soil Ecology, 1998
A litterbag decomposition experiment was conducted to test the hypothesis that differences in crop residue management practices influence the size and activity of the microbial community that regulates residue decomposition. Residues of wheat (Triticum aestivum), barley (Hordeum uulgare) and lupin (Lupinus albus) were incorporated into soils in which ...
W.R. Cookson, M.H. Beare, P.E. Wilson
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