2011年9月14日星期三

Nepal to get rid of hazardous pesticides

A ship containing equipment meant for safely packing more than 70 tons of obsolete and hazardous pesticides stored in different locations of Nepal is expected to arrive in India soon.
According to Mina Khanal, spokesperson for the Ministry of Environment (MoE), the ship has already left off the coast of Germany for the Kolkata port of India. “The ship will hopefully arrive in Kolkata till October 10,” Khanal told Republica, adding, “The equipment will then be brought to Nepal. We are expecting to begin fieldwork for packing pesticide no later than the end of October.”
As per the tripartite deal reached between the MoE, the Ministry of Agriculture and Cooperatives (MoAC), and the German Technical Cooperation (GTZ) -- which later became a component of German Society for International Cooperation (GIZ) -- in December last year, the GIZ has already awarded the contract for safely packing and disposing of obsolete pesticides to an international company.
"The company that has won the contract from the GIZ will pack and dispose of all the pesticides,” Khanal said. “We just need to accumulate all pesticides at one or two particular points.” The MoE is trying to find out appropriate places for accumulating pesticides from different locations so that the company will be able to concentrate on packaging and disposal of insecticide.
According to Bhupendra Devkota, an environment expert with the MoE, the company is expected to pack all the pesticides in three months. “Once packaging is done, our fear for leakage of pesticide that may result in a serious catastrophe will automatically lessen,” Devkota said. “Even after packaging, repatriation of pesticide to Germany may take a little longer. But then we need not worry about it.”
A total of 74.23 tons of different hazardous chemicals including DDT (dichlorodiphenyltrichloroethane), which has been banned in Nepal years ago, and 43 cylinders of methyl bromide have been stored in 22 different locations of the country for over 25 years now. The biggest chunk of hazardous pesticides, around 55 metric tons, has been stored in Amlekhgunj of Bara district. Most of these pesticides were given by Germany to Nepal for agricultural purposes.
Environment activists have long been decrying the delay by the government in disposing of hazardous pesticide. They fear that the accidental leakage of pesticide may cause serious damage to humans as well as the environment, especially because these pesticides have been stored in the vicinity of human settlement in most places.
The company chosen for disposing these hazardous pesticides will burn them at an incinerator after shipping them to Germany. Nepal has already signed Stockholm Convention and Rotterdam Convention, which bans the use of certain chemicals. As per these conventions, such hazardous pesticides should be disposed of by whichever company has manufactured them.
However, in Nepal´s case, most of companies that manufactured the pesticides have already closed down. Therefore, Nepal had to request the GTZ, now the GIZ, for disposing of these pesticides.
Yangzhou pioneer chemical CO.,LTD

Response of Common Nebraska Weeds to Dicamba Dose

Dicamba-resistant soybeans are being developed to provide an additional herbicide mechanism of action that can be used in soybean, and to provide a tool to help manage or mitigate the evolution of other herbicide-resistant weed populations. The objectives of this thesis were to assess the risk of common Nebraska weeds developing resistance to dicamba, quantify baseline dose-response to dicamba of high-risk weed species, and survey the variability in dicamba dose-response among populations of those species. Twenty-five weed scientists were asked to estimate the risk likelihood of ten weed species evolving resistance to dicamba following the commercialization of dicamba-resistant soybean. Palmer amaranth (Amaranthus palmeri), common waterhemp (Amaranthus rudis), kochia (Kochia scoparia) and horseweed (Conyza canadensis) were rated the highest risk species. Ten populations of horseweed, 73 populations of kochia, and 41 populations of common waterhemp were collected across Nebraska. Greenhouse dose-response studies using a range of dicamba doses (0 g ae ha-1 up to 35,840 g ha-1, depending on the species) were conducted on 10 horseweed populations, 10 kochia populations, and 4 common waterhemp populations that represented a range of susceptibility to dicamba in preliminary experiments. Visual injury and dry weight data were measured 28 days after treatment (DAT), data was fit to a four-parameter log-logistic equation, and the dicamba doses necessary to achieve 90% visual injury (I90) or reduction in dry weight (GR90) were calculated for each population. There was a three-fold difference in dicamba dose necessary to achieve I90 between the least and most susceptible horseweed populations, a 18.4 fold difference among kochia populations, and a 1.5 fold difference among common waterhemp populations. Similar variation in susceptibility for each species was calculated for GR90 values. Two or three replications of plants were allowed to grow for 84-228 DAT. The maximum dicamba dose (g ha-1) at which a population was able to reproduce was 280 for horseweed, 8,960 for kochia, and 560 for common waterhemp. One population of kochia was classified as “dicamba-resistant.” Individuals who adopt dicamba-resistant soybean should use multiple methods to control high-risk species to reduce the risk of dicamba-resistant weeds becoming widespread.
Yangzhou pioneer chemical CO.,LTD 

Yangzhou Pioneer Chemical strictly performs the modern enterprise management system


In 2010, Pioneer Chemical passed ISO9001:2008 quality system certification,and operate ERP management system,implement the office automation. Pioneer Chemical have improved production chain of command,strict quality guarantee system and modern means of testing.
Quality is enterprise’s life, so strictly control product quality, establish product quality standards and packaging quality standards for the target market is every employee’s responsibility.
Pioneer Chemical Laboratory in accordance with the quality control standards of SGS,Shanghai Institute for Drug Control and other professional testing organizations,test random sampling of each batch of products, all goods must pass the analysis and insection before packing, and shipping.
In thefierce international market competition, “quality first,credit first” is our goal,and “quality management” is our persistent faith.

2011年9月12日星期一

Dicamba Sees Bright Future Ahead

On March 14th, 2011, BASF and Monsanto Company announced a new agreement to collaborate on the advancement of dicamba tolerant cropping systems after launching next-generation dicamba-based weed control systems for soybeans and cotton last year. This is the 3rd cooperation since they entered into a joint licensing agreement to develop innovative formulations for dicamba with herbicide-resistant cropping systems in January 2009. There are bright prospects for Dicamba.
Dicamba is a broad-spectrum herbicide, with a strong seasonal characteristic in production. Only a few domestic manufactures have mastered its production technology. What is the export situation of Chinese dicamba, who are exporting their dicamba
CCM International, a Chinese market research company with ten-year efforts in providing customer-oriented consultancy regarding agriculture, life science, chemicals and energy, has kept monitoring the import and export analysis on dicamba - Monthly analysis on import and export of dicamba.
CCM mainly applies telephone survey and in-depth analysis on China customs data (shipment records) for the import and export analysis. Telephone survey includes exporter survey and manufacturer survey. In order to guarantee data accuracy, cross-checking with data from third-party data provider is necessary. In each issue, CCM will deliver original customs data, compiled customs data and CCM’s key findings in excel format. All of the data can also be acquired in CCM’s database ValoTracer.
With key import and export information, including product specification and application, volume, price, export time, port of export, shipment term, destination, etc., CCM has been monitoring lots of different chemical products regularly, providing the data in different formats catering to various needs. CCM’s export analysis will help you identify export situation of a specific product.
Benefits are listed as follows:
- To analyze China’s export situation and trend of dicamba- To grasp investment and cooperation opportunities
- To identify key players and competitors
- To explore potential suppliers and purchasers
from:Yangzhou pioneer chemical CO.,LTD.http://www.pioneer-chem.com/NewsInfo.asp?id=185

2011年9月9日星期五

Dicamba-glyphosate combo works well in resistant soybeans

Bill Johnson has shown that a combination of glyphosate and dicamba used with dicamba-resistant soybeans gives better control of glyphosate-resistant weeds.
Bill Johnson, a Purdue professor of weed science, said dicamba has been known to work well on weeds that appear in soybean fields, but it had to be applied to the ground long before soybeans were planted because the crops also were susceptible to the herbicide. A new dicamba-resistant soybean, which also is resistant to glyphosate, can handle an application after planting, according to Johnson"s findings in the journal Crop Management.
"This is a powerful postemergence herbicide that we can pair with glyphosate to kill glyphosate-resistant weeds," Johnson said.
More than 90 percent of soybeans and corn planted in the United States are resistant to glyphosate, the active ingredient in the popular herbicide Roundup. Overuse has created glyphosate-resistant weeds that can lower crop yields.
"There has been an overreliance on just using glyphosate in many soybean fields. We have created an environment that has selected for glyphosate-resistant weeds," Johnson said.
Johnson used field tests from 14 locations in Georgia, Illinois, Indiana, Kentucky, Missouri, Nebraska, North Carolina, Ohio, South Dakota and Tennessee to evaluate dicamba"s effectiveness on broadleaf weeds before and after soybean planting.
The study showed that dicamba applied just before planting provided 97 percent control of common lambsquarter and horseweed three weeks after treatment, but was slightly less effective on smooth pigweed, giant ragweed, velvetleaf, palmer amaranth, waterhemp and morning glory.
dicamba treatments postemergence improved control of velvetleaf, smooth pigweed, morning glory and waterhemp. When combined with glyphosate, dicamba gave 30 percent to 65 percent better control over glyphosate-resistant palmer amaranth, waterhemp, horseweed and giant ragweed compared to glyphosate alone.
Johnson said he would continue to study dicamba-glyphosate usage to understand how the combination can be best utilized in different conditions and situations. Monsanto, which donated seeds, partly funded his research.
Provided by Purdue University
Yangzhou pioneer chemical CO.,LTD. http://www.pioneer-chem.com/newsinfo.asp?id=183

2011年9月7日星期三

Role of pencycuron in aflatoxin production and cotton seed protection

The research is conducted on the effect of pencycuron and pencycuron-c on cotton seed mycoflora, aflatoxin production and viability.
At 8% seed moisture content (mc), pencycuron and pencycuron-c promoted Aspergillus niger, A. flavus, and Penicillium corylophilum growth count at 1 g/kg, but exerted inhibitory effect at 3 and 5 g/kg.
At 15% mc, pencycuron enhanced seed-borne fungi at all three doses after most treatment periods (1, 2, 3, 4, and 5 months), whereas pencycuron-c induced inhibition effect.
The A. niger utilized pencycuron as nitrogen source more than pencycuron-c. Seeds with 15% mc lost their viability faster than that at 8%, and this was more evident as storage time increased. Such loss occurred faster when seed was treated with pencycuron, whereas pencycuron-c exerted significant activation in the viability compared to the control.
The fungal species have high biodegradation activity and produce aflatoxin in different parts of cotton boll (fiber, valves, and seeds). Pencycuron and pencycuron-c inhibited aflatoxin B1 and B2 production in seeds, but did not affect aflatoxin G1 and G2.
from:Yangzhou pioneer chemical CO.,LTD.   http://www.pioneer-chem.com/

2011年9月6日星期二

The use of Dicamba in interplanting

To be a common, high performance-price ratio of herbicides, the use range of Dicamba is large and widely welcomed by the people. But we should also pay attention to it’s using mode in interplanting .
 Dicamba are often used to control annual and perennial broadleaf weeds in cornfield. Dicamba is suction transmitting herbicides. can be soon absorbed by stem and leaf after spraying.It also can be absorbed by root of weed when fall into the soil. Killing the weed through blocking its plant hormones" normal activities.
 So we need to distinguish the different kinds of pesticides when plant in the nested planted fields. Because the cotton, vegetable and soy are very sensitive to Dicamba, and can be absorbed by plant roots, so it is better not use Dicamba in these fields. At the same time Dicamba has a period of validity in the soil, and has certain controlling role to the not unearthed weeds, when in wheat fields the efficacy period can reach more than 40 days.
 It can use glyphosate in these area,Glyphosate mixed in soil that glyphosate combination of metal ions would lose activity. It can use in stubble ploughing without influece on crops growing . It is safe to sow crops in 2-5days after crop-dust
form:yangzhou pioneer chemical CO., LTD   http://www.pioneer-chem.com/NewsInfo.asp?id=172