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| 1 | 聚合物包膜NPK复合肥料养分释放滞后期的研究显示文摘聚合物包膜肥料养分释放的滞后期是指不释放养分或释放量很少的时期,主要由水分进入过程和养分溶解过程组成,滞后期的长短受这两个过程控制;滞后期的主要影响因素为包膜厚度、养分溶解度、养分组成等。以此为理论基础,模拟了聚合物包膜肥料养分释放的滞后期,推导出聚合物包膜肥料滞后期的方程为:tlag=kr/3(l/PhΔP+1/Dφ),估算了聚亚安酯类物质包膜NPK复合肥料(Multicote)中K+、NO-3、NH+4释放的滞后期。4和H2PO-由于养分离子本身的溶解性质不同以及养分间的相互作用,不同的养分离子的滞后期存在明显差异,与试验结果一致。同时,该模型还表明,当包膜厚度较薄时,对滞后期起主导作用的是养分溶解过程,只有当包膜厚度足够大时,才会对滞后期起主导作用。该模型将对聚合物包膜肥料的研制和应用提供重要的理论指导。 | 杜昌文 周健民 王火焰 Avi Shaviv | 2005 | 植物营养与肥料学报2005，11，2： | 14 |
| 2 | 聚合物包膜肥料中钾素释放特征及其模拟显示文摘以水和水饱和石英砂为介质,研究了2种聚合物包膜肥料中钾素的释放特征。结果表明,钾素释放主要受温度影响,同时还受到颗粒大小和形态的影响;在水饱和石英砂中溶出与在水中溶出差别不大。采用水为介质,以一聚合物包膜肥料养分释放的理论模型为基础,对影响聚合物包膜肥料钾素释放的因素进行了研究,并进行了灵敏性检验。结果表明,温度越高、包膜的厚度和颗粒半径越小时钾素释放越快,且试验结果和模拟结果达到极显著的相关性;模拟结果比实际结果明显偏低,但表现出了较好灵敏性和相关性,是一个具有理论基础和应用潜力的聚合物包膜肥料养分释放模型。 | 杜昌文 周健民 Avi Shaviv | 2006 | 农业工程学报2006，22，2： | 8 |
| 3 | 聚合物包膜肥料铵态氮释放特征研究显示文摘采用单一组分与复合组分的聚合物包膜肥料,利用静态水溶出的方法研究了不同温度和半径处理下,聚合物包膜肥料铵态氮释放特征。结果表明,养分释放显著受到温度、颗粒半径的影响,温度越高,半径越小,养分释放速度越快,且发现养分释放特征与肥芯的化合物组成有关,肥芯化合物组成不同造成各种离子的饱和浓度发生变化,影响了跨膜释放的动力从而影响释放。养分释放的滞后期和线性期也随温度的升高和颗粒半径的缩小而缩短,且肥芯化合物组成也通过影响离子的饱和浓度影响了养分释放的滞后期和线性期。利用养分释放活化能来反映养分释放速度变化随温度变化的敏感程度。试验结果表明,活化能与颗粒半径、肥芯化合物组成有关。通过对活化能和养分释放三阶段的描述能更全面地反映包膜肥料养分释放与作物养分需求的协调性,为包膜肥料的研制和应用提供了新的思路。 | 汤德源 杜昌文 王火焰 周健民 Avi Shaviv | 2008 | 土壤学报2008，45，2： | 7 |
| 4 | 聚合物包膜肥料硝态氮释放特征研究显示文摘采用不同养分组成(单一组分和复合组分)聚合物包膜肥料(Multicote)和水中静态溶出的方法,研究了不同温度和半径处理下聚合物包膜肥料NO3--N释放特征。结果表明,温度升高显著促进NO3--N的释放;肥料颗粒半径差异显著影响NO3--N释放,小半径的肥料颗粒NO3--N释放明显比大半径颗粒快,且小半径肥料颗粒NO3--N释放的活化能较低;肥料颗粒内离子间存在明显的交互作用,与单一组分聚合物包膜肥料相比,复合组分聚合物包膜肥料NO3--N释放的线性期明显缩短,NO3--N释放速率增加,且NO3--N释放的活化能明显增大。聚合物包膜肥料中NO3--N的释放特征直接与聚合物膜的扩散系数、扩散面积、膜厚度以及伴随离子的种类和浓度相关。养分释放时期以及活化能的定量化表征为全面评估聚合物包膜肥料养分释放特征提供了参考。 | 汤德源 杜昌文 王火焰 周健民 Avi Shaviv | 2007 | 土壤2007，39，6： | 4 |
| 5 | Environmental friendly nitrogen fertilization显示文摘With the huge intensification of agriculture and the increasing awareness to human health and natural resources sustainability, there was a shift towards the development of environmental friendly N application approaches that support sustainable use of land and sustain food production.The effectiveness of such approaches depends on their ability to synchronize plant nitrogen demand with its supply and the ability to apply favored compositions and dosages of N-species.They are also influenced by farming scale and its sophistication, and include the following key concepts: (i) Improved application modes such as split or localized ('depot') application; (ii) use of bio-amendments like nitrification and urease inhibitors and combinations of (i) and (ii); (iii) use of controlled and slow release fertilizers; (iv) Fertigation-fertilization via irrigation systems including fully automated and controlled systems; and (v) precision fertilization in large scale farming systems. The paper describes the approaches and their action mechanisms and examines their agronomic and environmental significance. The relevance of the approaches for different farming scales, levels of agronomic intensification and agro-technical sophistication is examined as well. | Avi Shaviv | 2005 | Science China(Life Sciences)2005，48，z2： | 2 |
| 6 | Slow release fertilizers for a safer environment maintaining high agronomic use efficiency 显示文摘 | Shaviv A Mikkelsen R L | 1993 | Fertilizer Research1993，35，： | 1 |
| 7 | Slow release fertilizers for a safer environment maintaining high agronomic use efficiency显示文摘 | Shaviv A Mikkelsen R L | 1993 | Fertilizer Research1993，35，： | 1 |
| 8 | Release characteristic of a new controlled release fertilizer 显示文摘 | Uri Shavit Avi Shaviv Gil shalit | 1997 | Journal of Controlled Release1997，43，： | 1 |
| 9 | On the Stability of Accretion Disks 显示文摘 | Livio M Shaviv G | 1977 | Astron Astrophys1977，55，： | 1 |
| 10 | Advances in controlled-release fertilizers显示文摘 | Shaviv A | 2001 | Advances in Agronomy2001，，71： | 1 |
| 11 | Synthesis of TiN and TiN C:Optimization of reaction parameters显示文摘 | Shaviv R | 1996 | Materials Science and Engineering1996，，209： | 1 |
| 12 | Controlled-release fertilizers to increase efficiency of nutrient use and minimize environmentaldegradation:A review显示文摘 | Shaviv A Mikkelsen R L | 1993 | Fertilizer Research1993，35，： | 1 |
| 13 | Release characteristics of nutrients from polymer-coated compound controlled release fertilizers显示文摘 | Du C W Zhou J M Shaviv A | 2006 | Journal of Polymers and the Environment2006，14，3： | 1 |
| 14 | Advances in controlled-release fertilizers显示文摘 | Shaviv A | 2001 | Advances in Agronomy2001，71，1： | 1 |
| 15 | Release characteristics of nutrients flom polymer-coated compound controlled release fertilizers显示文摘 | Du Changwen Zhou Jianming Shaviv A | 2006 | J Polym Environ2006，，14： | 1 |
| 16 | The Stability of Accretion Disks to Short Wavelength Perturbations 显示文摘 | Livio M Shaviv G | 1981 | APJ1981，244，： | 1 |
| 17 | Release mechanisms controlled release fertilizers in practical use显示文摘 | Raban Zeidel Shaviv | 1997 | Haifai Technion1997，，22： | 1 |
| 18 | Influence of effluent irrigation on community composition and function of ammonia-oxidi-zing bac- teria in soi显示文摘 | Oved T Shaviv A Goldrath T | 2001 | Appl Environ Microbiol2001，67，： | 1 |
| 19 | Application of conditioner solution by subsurface emitters for stabilizing the surrounding soil显示文摘 | Shaviv A Sinai G | 2004 | J Irrig Drain Eng2004，130，6： | 1 |
| 20 | Wetting mechanisms of gel-based controlled-release fertilizers显示文摘 | Shavit U Reiss M Shaviv A | 2002 | Journal of Controlled Release2002，，1： | 1 |
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