2001富士苹果在云南昭通栽培技术

2001富士是近年来云南省昭通市苹果产区推广栽培的优良苹果品种,该品种生长结果习性与以往栽植的金帅品种相差较大,而大多数果农仍沿用金帅管理措施,使得许多新植果园普遍存在适龄不结果、结果不丰产、丰产不优质的问题。为了解决上述问题,探索与之配套的栽培技术,2002-2006年我们开展了2001富士苹果早果、优质、丰产栽培试验。通过试验取得了3年见花、4年投产、优质果率93%的成效。现将试验结果总结报道如下。     

核桃优良品种--香玲

香玲是山东省果树研究所1978年杂交育成的核桃新品种.我市1987年引种栽培,经过十几年的栽培观察,该品种壳薄、优质、早实、丰产,深受栽培者和消费者的青睐,是农民发家致富和果树产业结构调整的首选品种.截止2002年栽培面积已达1000公顷.现将品种特性及丰产栽培技术介绍如下:     

红地球葡萄栽培技术

红地球葡萄是名优晚熟品种,大粒、优质、丰产、极耐贮运。自引进以来,栽培面积不断扩大,通过多年的不断摸索、改进和完善,总结出了一套适合泾阳及周边地区优质丰产的栽培技术。     

8个杧果品种在四川攀枝花的表现

四川省攀枝花市大面积栽培的果品种中,由于缺少有市场竞争力的优质品种,而严重影响当地果生产.因此,迫切需要从引入的果品种中筛选出适宜本市种植的优质丰产品种.     

西番莲丰产优质栽培技术

从品种特性、苗木繁殖、种植、整枝修剪、肥水管理等方面，总结西番莲丰产优质栽培教书。     

高湿寡日照地区梨优质丰产栽培配套技术

高湿寡日照地区梨优质丰产栽培配套技术＠汪志辉＠廖明安￥四川农业大学林学园艺学院高湿寡日照地区梨优质丰产栽培配套技术汪志辉廖明安（四川农业大学林学园艺学院雅安６２５１０４）金花梨是目前我国南方重点发展的优质梨品种之一,但在高湿寡日照地区（如雅安大部分地区）,...     

葡萄优质丰产栽培配套技术

通过对不同葡萄品种的多年观察研究,总结出1套葡萄优质丰产栽培配套技术。     

中国农业科学院郑州果树研究所果树栽培课题组

正树栽培课题组是专门从事果树新优品种推广、优质丰产栽培技术研发的专业课题组,依托课题组(联合果树营养、果树植保专家)成立的"果园管家博士服务团",专门为规模化园区提供托管服务,可帮助制定园区规划、品种选择、架式选择、栽培管理、土肥水管理、植保措施等现代果园丰产、优质、高效、安全、省力化绿色管理综合解决方案!     

风味玫瑰杏李品种特性及栽培技术

风味玫瑰杏李属早熟杏李品种．2001年冬引进．在西峡县的丹水镇袁沟村、田关乡孙沟村、阳城乡牛王村、回车镇石梯村及五里桥镇封店村．设立风味玫瑰杏李引种观察和丰产栽培试验区．通过多年的引种观察和丰产栽培试验．该品种在伏牛山区具有早熟、优质、丰产稳产等特性,耐旱、耐瘠薄、适应性较强。     

适宜设施栽培的几个桃树品种

在设施内栽培的桃树品种应具备休眠期需冷量低、白花授粉率高、早熟、优质、丰产、耐低温弱光、耐湿、抗病等特性。现将几个设施内栽培的油桃品种介绍如下。     

怎样给蔬菜进行根外追肥

根外追肥是与土壤施肥相辅相成的，是蔬菜生产上一种经济速效的提高产量和改善品质的施肥方法（即叶面施肥），它可以通过叶面直接吸收利用．尤其在蔬菜生长后期．根系老化，吸收运输能力衰弱时喷施．可以迅速补充植株体内养分的不足或营养失衡．促进蔬菜生长旺盛。防止早衰，延长供应朋。根外追肥在茄果类或瓜类生育期长，分批采收的蔬菜上效果尤为明显。     

海南“澄迈福橙”敲响大超市的门

口感好硒含量高采摘期长,这是海南省“澄迈福橙”的特点,澄迈县将福橙促销瞄准大超市。2009年2月20日,该县在省城海口市召开福橙品尝推介会,向超市促销这一地方名牌农产品。     

西洋梨栽培的品种选择

依引进西洋梨品种的表现，换成熟期初步选择介绍了6个较有发展前途的优良品种。     

Willingness to travel to avoid recreation conflicts in Danish forests

Conflicts among forest visitors have direct effects on the quality of a recreational experience. As the number of visitors to forests close to residential areas increases, as well as the number of different activities, so does the potential for perceived conflicts. According to the literature, expanding knowledge of conflict characteristics and their causes is important for recreation planners and managers who aim to reduce conflicts.In the present study, different forest user groups were identified and categorised according to their pursued activities, and for each group, causes of conflict were identified. Furthermore, a choice experiment was constructed to estimate the distance visitors are willing to travel to encounter few visitors as opposed to many visitors, and thereby potentially experience fewer conflicts. Comparing the marginal willingness to travel (WTT) of different user groups suggests that some groups have a WTT further than the average to reach a forest with ‘Few’ visitors. The average WTT to reach a forest area with ‘Few’ visitors. ‘Mountain bikers,’ ‘Peace and nature lovers’ and ‘Horse riders’ are willing to travel 4 km more than the average per visit to reach a less crowded forest. At the other end of the scale, we find that people who are doing physical exercise are willing to travel 2 km less than the average to reach a less crowded forest.     

桃砧木筑波4号和筑波5号抗根癌病鉴定评价

以当年实生筑波4号(Prunus persica‘tsukuba-4’)和筑波5号(Prunus persica‘tsuku-ba-5’)的新梢为材料,采用人工接种发根土壤杆菌(Agrobacterium rhizogenes)的方法研究了其对根癌病的抗性及其分离情况。结果表明,筑波4号实生群体中免疫、高度抗病、中度抗病、中度感病和高度感病类型分别占0.90%、1.80%、9.01%、18.92%和69.37%。筑波5号实生群体中免疫、高度抗病、中度抗病、中度感病和高度感病类型分别占1.01%、3.03%、8.08%、38.38%和49.49%。筑波4号和筑波5号对发根土壤杆菌的抗性存在显著分离现象,可从中筛选出抗性极强的植株。     

A novel hierarchical framework to evaluate residential exposure to green spaces

Landscape Ecology - It has been widely acknowledged that exposure to green space (e-GS) has positive health benefits to urban residents. While most studies estimate e-GS from an availability or...     

A Method to Efficiently Apply a Biogeochemical Model to a Landscape

Biogeochemical models offer an important means of understanding carbon dynamics, but the computational complexity of many models means that modeling all grid cells on a large landscape is computationally burdensome. Because most biogeochemical models ignore adjacency effects between cells, however, a more efficient approach is possible. Recognizing that spatial variation in model outputs is solely a function of spatial variation in input driver variables such as climate, we developed a method to sample the model outputs in input variable space rather than geographic space, and to then use simple interpolation in input variable space to estimate values for the remainder of the landscape. We tested the method in a 100 km×260 km area of western Oregon, U.S.A. , comparing interpolated maps of net primary production (NPP) and net ecosystem production (NEP) with maps from an exhaustive, wall-to-wall run of the model. The interpolation method can match spatial patterns of model behavior well (correlations>0.8) using samples of only 5 t o 15% of the landscape. Compression of temporal variation in input drivers is a key step in the process, with choice of input variables for compression largely determining the upper bounds on the degree of match between interpolated and original maps. The method is applicable to any model that does not consider adjacency effects, and could free up computational expense for a variety of other computational burdens, including spatial sensitivity analyses, alternative scenario testing, or finer grain-size mapping.     

Relations of Phenolic Inhibitors to Resistance of Immature Apple Fruits to Rot

Extracts of phenolic compounds from maturing Red Delicious apple tissues containing p-coumaryl-quinic acids and chlorogenic acid were shown to be inhibitory to germination of Botrytis cinerea spores and mycelial growth of B. cinerea, Penicillium expansum and Alternaria sp. Measurements of the content of both acids during the growing season showed that the content of phenolic compounds was highest early in the season and decreased as the fruit matured. The decrease coincided with the rise in susceptibility of the fruit to rot caused by B. cinerea. The concentration of p-coumaryl-quinic acid was highest near the skin and lowest near the core.