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[前沿资讯] Challenges and solutions with Biorationals in the field 进入全文

AgroNews

From political, retail and consumer perspectives there is a clear push to make all sectors of food production less dependent on conventional chemical crop protection products. Great progress has been made in the use of Biorational products in protected cropping for ornamentals, fruit and vegetables but there remains considerable discrepancy between the political demands and the practical realities at this moment in field crops. The struggle will not be to find new Biorational products, but to make them consistently effective in the field.  Biorationals are defined by Certis Europe s ‘registered plant protection products generally derived from the natural environment, offering improved benefits for plants, people and the planet, which are increasingly important factors for Integrated Crop Production to satisfy requirements of the value chain and consumers’. They have mostly no residue issues as the active ingredients are naturally occurring substances degrading rapidly. Because of this feature Biorationals are also used in organic production and form the basis for Integrated Pest Management crop programs. Biorationals are generally nicely compatible with the use of beneficial arthropods as a tool to manage pests, having mostly no impact or minimal impact on pollinators, predators and parasitoids of the most important pests. Importantly they also pose a lower risk than conventional products to workers applying them, to bystanders and to consumers of the end produce. In fact their environmental profile is significantly better overall and a further significant advantage is that there is a low risk of resistance development with Biorational products. Their use is therefore strongly favoured by growers and produce buyers alike.

[前沿资讯] Satellite imagery, artificial intelligence to improve farm yields in Maharashtra 进入全文

AgroNews

Launched in January this year, the Maha Agri Tech project seeks to use technology to address various cultivation risks ranging from poor rains to pest attacks, accurately predict crop-wise and area-wise yield and eventually to use this data to inform policy decisions including pricing, warehousing and crop insurance.  When farmers in six districts of Maharashtra begin sowing for the coming rabi season, this project will enter its second phase where artificial intelligence and satellite imagery will be used to mitigate risks. Fields of the farmers that are part of the project will be monitored via satellite images at every stage right until the harvest. In its first phase the Maha Agri Tech project used satellite images and analysis from the Maharashtra Remote Sensing Application Centre (MRSAC) and the National Remote Sensing Centre (NRSC) in Hyderabad to assess the acreage and the conditions of select crops in select talukas. In its second phase, various data sets from diverse data providers will be combined to build yield modelling and a geospatial database of soil nutrients, rainfall, moisture stress and other parameters to facilitate location-specific advisories to farmers. Satellite imagery helped analyse the extent of crop destruction in parts of western Maharashtra after the floods this August. Once indicative crop yield prediction and accurate analysis of highly localised soil health/moisture conditions is possible using satellite imagery combined with artificial intelligence, policy decisions and advisories ranging from crop suitability, inventory, crop damage assessment and early season crop forecasts can be based on these. 

[前沿资讯] 泰来无害化处理秸秆“五法”保蓝天 进入全文

中华人民共和国农业农村部

四块稻田仅剩矮茬,与周边正在努力冲刺结穗的水稻形成了鲜明对比。作业人员背着喷壶,手握喷杆,在提前收割完毕的青稻田间喷洒着特殊液体。据了解,在田间进行喷洒的是利用生物菌剂,对水稻秸秆进行腐熟还田的对比试验。他们选择了4家生物菌剂企业,在相邻的4个地块同时喷施,20天左右便能看到实际效果。而类似的对比试验,目前在泰来县十个乡镇正在同步进行,目的是让农民最直观的了解水稻秸秆腐熟技术,最大程度加快秸秆无害化处理和有效利用,最终打赢蓝天保卫战。据介绍,泰来县耕地面积290万亩,其中水稻种植面积为180万亩,全部作物预计可产生秸秆180万吨,除根茬外,有150万吨量级的秸秆需要有针对性的处理。目前,泰来县将秸秆综合利用分为玉米保护性耕作、玉米秸秆全量还田翻埋、玉米秸秆全量碎混还田、水稻秸秆全量还田翻埋和水稻秸秆腐熟全部还田等五种方式,通过这些方式可实现所有秸秆55%的还田目标,余下45%离田秸秆中,将由发电厂消耗25万吨、农村农户直燃9万吨、牲畜规模饲料消耗8万吨以上,以及进行秸秆压块处理等方式来消耗。

[前沿资讯] New report says accelerating global agricultural productivity growth is critical 进入全文

EurekAlert!

The 2019 Global Agricultural Productivity Report, "Productivity Growth for Sustainable Diets, and More," released today by Virginia Tech's College of Agriculture and Life Sciences, shows agricultural productivity growth - increasing output of crops and livestock with existing or fewer inputs - is growing globally at an average annual rate of 1.63 percent. According to the report's Global Agricultural Productivity Index, global agricultural productivity needs to increase at an average annual rate of 1.73 percent to sustainably produce food, feed, fiber, and bioenergy for 10 billion people in 2050. Productivity growth is strong in China and South Asia, but it is slowing in the agricultural powerhouses of North America, Europe, and Latin America. The report calls attention to the alarmingly low levels of productivity growth in low-income countries, where there also are high rates of food insecurity, malnutrition, and rural poverty.

[前沿资讯] 河北石家庄 滹沱河生态修复工程效应凸显 进入全文

中华人民共和国农业农村部

滹沱河被誉为石家庄的“母亲河”。自20世纪七十年代中期以来,滹沱河出现断流,土地沙化严重,逐渐变成了一条垃圾带。把滹沱河修复好、利用好、发展好,是石家庄人的美好夙愿。从2017年开始,石家庄市启动了规模大、范围广、标准高的滹沱河生态全面修复工程,对全长109公里的修复工程分三期进行建设。从生态治理到景观打造,再到产业规划和行洪安全设计,一同进行修复提升。根据不同地块土质情况,确定不同配比的施肥方案,并在改良后的土壤上栽植绿植,有效缓解滹沱河两岸土地沙化问题,形成有效的生态循环。除了改良土壤改善沿岸生态外,在滹沱河的河道修复中,尽量减少使用混凝土材料。除了受冲刷严重的溢流堰,其他建筑物包括河道防护等,都采用钢丝石笼方法,尽量减少对河道的污染,努力把滹沱河打造成一条生态河。据专家计算,滹沱河生态区绿地植被形成规模后,预计每年可吸收二氧化硫2370吨,吸收二氧化碳6.2万吨,释放氧气4.5万吨。

[前沿资讯] 十年来浙江省土壤肥力稳中向好 进入全文

中华人民共和国农业农村部

浙江省农业农村厅近日发布的《2018年度浙江省级耕地质量监测报告》显示,浙江省耕层土壤有机质、全氮、有效磷平均含量处于较高或高水平,耕地地力水平总体较高,且近10年来地力变化趋势平稳,部分土壤肥力指标有所提升,土壤肥力稳中向好。监测数据显示,以每千克计(下同),浙江省耕层土壤中有机质、全氮、有效磷平均含量分别达到30.94克、2.23克、45.06毫克,处于较高或高水平;速效钾平均含量为102.95毫克,处于中等水平。其中,水田土壤有机质较旱地更为丰富,旱地土壤有效磷、速效钾等速效养分含量比水田高。该报告详细介绍了浙江省2018年度耕地土壤养分状况和近年来耕地质量变化趋势,全面阐述了肥料投入、种植制度、施肥方法等因素对作物产量和土壤养分的影响。通过合理施肥、秸秆还田、种植绿肥、增施有机肥、因缺补缺、土壤改良等措施,科学施肥水平稳步提高,施肥结构明显改善,有机肥用量逐年增加。该报告也同时指出,浙江省部分地区存在耕地土壤酸化、有效磷积累过快等问题。特别是旱地有效磷积累较快,对面源环境造成较大压力。因此,浙江省开始探索重点作物化肥定额制施用,创新免费测土配方服务,促进施肥结构调整,有针对性地开展土壤改良和综合培肥,切实保障耕地综合产能。

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