If you find that certain plants do<br >poorly regardless of care, or the<br >whole garden grows too slowly,<br >looks stunted, and has a high mor-<br >Acidity<br >Acid soil is at the other end of the scale<br >from alkaline soil. It is most common<br >in areas of heavy rainfall and is often<br >associated with sandy soil (but ocean<br >beaches are rarely or never acid). Soils<br >high in organic matter tend to be acid<br >rather than alkaline.<br > Mildly acid soils cause little trouble,<br >and some plants--azaleas, rhododen-<br >drons, and camellias, to name a few--<br >prefer soil that is moderately acid. But<br >for most plants an intense acid condi-<br >tion is highly undesirable.<br > When a test indicates that soil is<br >acid, adding liming materials will help<br >to neutralize it, since all acid soils are<br >low in calcium (lime). Fertilizers can be<br >another very important factor in con-<br >trolling acidity: some fertilizers can ac-<br >tually increase soil acidity.<br >means the only ailments to occur,<br >but they are common ones that<br >home gardeners should be aware<br >of.<br > Nursery personnel, experi-<br >I~.i~ ~ enced local gardeners, and agricul-<br > tural extension agents can be help-<br > ful in testing or evaluating your soil.<br > You could also get a detailed anal-<br > ysis from a commercial laboratory<br >tality rate, examine the six soil or use a do-it-yourself soil testing<br >problems and solutions discussed kit. The kits are widely available and<br >below, will give you a good idea of the<br > These soil problems are by no status of your soil.<br >Alkalinity<br >Alkaline soil, common in light-rainfall<br >areas, is soil that is high in calcium<br >carbonate (lime) and certain other min-<br >erals. Many plants will grow well in a<br >moderately alkaline soil, though camel-<br >lias and other acid-loving plants will not<br > Gardens in which softened water is<br >used are quite likely to have alkaline<br >soil.<br > Gypsum may be useful in some<br >alkaline soils; iron and sulfur benefit<br >moderately alkaline soils. Since large-<br >scale chemical treatment of extremely<br >alkaline soils is expensive and complex,<br >it might be easier to plant in improved<br >soil in raised beds and containers.<br >Nutrient deficiency Salinity<br >Most soils, left alone, yield the three<br >major plant nutrients--nitrogen,<br >phosphorus, and potassium--very<br >slowlv.<br > Fertilizers, either chemical or or-<br >ganic, are the quickest and easiest an-<br >swer to a nutrient deficiency. Many<br >complete fertilizers, containing all<br >three major elements, are available (see<br >the chapter on fertilizing techniques<br >beginning on page 29). There are also<br >formulations of nitrogen, phosphorus,<br >or potassium compounds that provide<br >these nutrients separately. Organic<br >amendments and soil conditioners are<br >also beneficial in varying degrees<br >An excess of salts in the soil is a wide-<br >spread problem in arid and semiarid<br >regions. It can prevent germination; or<br >if plants are already growing, it stunts<br >them and in advanced cases burns their<br >foliage and finally kills them. Its pres-<br >ence can usually be detected by white<br >deposits of salt on the surface of the<br >soil. Frequent and shallow watering<br >(especially with softened water), as well<br >as use of certain fertilizers, can cause<br >salts to build up. Periodic slow, deep<br >watering will help wash the salts beyond<br >roots (if there s no compacted soil).<br >Chlorosis<br >Chlorosis is a plant condition fre-<br >quently caused by the inability of plants<br >to take in iron from the soil through<br >their root systems. If the deficiency is<br >mild, areas of yellow show up between<br >the veins of the leaf; if the deficiency is<br >severe, the entire leaf turns yellow.<br > Iron deficiency in the plant is only<br >occasionally the result of deficient<br >amounts of iron in the soil; more fre-<br >quently it is the result of some other<br >substance (principally lime) that ren-<br >ders the iron unavailable. Sometimes<br >chlorosis results from magnesium de-<br >ficiency, even when iron is present.<br > Chemical treatment of the soil with<br >chelated iron or iron sulfate can cor-<br >rect chlorosis. You can treat plants with<br >serious iron shortages by spraying foli-<br >age with a special iron solution.<br >Shallow compacted soil<br >A tight, impervious layer of soil can give<br >trouble if it lies at or near the surface.<br >Such a layer--known as hardpan--<br >can be a natural formation or it can be<br >manmade. Roots cannot penetrate the<br >hard layer, and water cannot drain<br >through it.<br > If the hardpan layer is thin and if<br >your garden plot is accessible to heavy<br >equipment, you may be able to lessen<br >or eliminate the problem by having the<br >soil plowed to a depth of 12 inches or<br >more. If this is impractical, you can<br >drill through it with a soil auger when<br >planting. If the layer is too thick, you<br >may want to have a landscape architect<br >help ~ou with a drainage system, which<br >mighl~volve sumps (side or bottom)<br >or d~h tiles. Or you can switch to<br >raise[t beds and container gardening.<br >Understanding Your Soil 5<br ><br >
评分
评分
评分
评分
这本书简直是为我量身定做的,我一直对园艺充满热情,但苦于没有系统的方法和清晰的指导,常常在实践中感到迷茫。这本书的优点在于它非常注重实用性,图文并茂的方式让我这个新手也能轻松上手。比如,在讲解土壤改良的部分,它不仅罗列了各种土壤的特性,还配有清晰的图示来指导如何通过添加有机物来改善土壤结构。我按照书中的步骤进行了一次土壤测试和改良,效果立竿见影,我种植的那些蔬菜长势明显比以前好了许多。再来说说病虫害防治,这块内容写得尤其细致,它详细介绍了常见的几种病虫害,并提供了多种防治方案,从物理防治到生物防治,再到化学防治,都给出了详细的步骤和注意事项。我之前因为对杀虫剂的使用心存顾虑,但书里对每种方法的适用范围和安全隐患都做了深入分析,让我能更放心地选择最适合自己的方法。这本书不像是冷冰冰的教科书,倒更像是一位经验丰富的园艺师在手把手地教你,每一个细节的处理都体现了作者的用心和专业,极大地增强了我的园艺信心。
评分坦率地说,我以前买过好几本园艺入门书,但它们要么内容过于理论化,要么侧重于某个特定领域(比如只讲花卉或只讲蔬菜),很难找到一本能全面涵盖所有基础知识的“百科全书”。这本书的广度和深度给我留下了深刻印象。它成功地将观赏园艺和实用园艺结合得天衣无缝。比如,在处理花境设计时,它会同时考虑花朵的观赏价值和它们对土壤的固氮作用;在介绍果树修剪时,它也会兼顾树形的优美和提高产量的实际需求。最难能可贵的是,它对“疑难杂症”的处理非常到位。当遇到那些不常见但又确实存在的问题时,比如如何处理因为过度浇水导致的烂根,或者如何应对突然的霜冻,书中的“故障排除”板块总能提供清晰、分步骤的急救指南。这本书的厚度足以证明其内容的详实,但阅读体验却丝毫没有臃肿感,因为它始终围绕着“解决问题”这一核心目标,非常适合想要建立一个完整、健康家庭花园的园丁们作为长期的案头参考书。
评分我必须承认,我对园艺知识的了解一直停留在“靠感觉”的阶段,直到我翻开了这本书。它真正让我明白了“科学”种田的魅力。最让我惊喜的是它对植物生命周期和季节性管理的划分,简直是一张清晰的时间表。它不是简单地告诉你“春天播种”,而是精确到不同气候区和不同植物的起始时间,甚至连光照和水分需求的变化趋势都描述得非常到位。我特别欣赏它对“容器园艺”的深度挖掘,我居住的空间有限,一直想在阳台上弄个小菜园,但不知道如何平衡空间和产量,这本书里的垂直种植和多层种植的方案简直是救星。书中用精美的照片展示了各种创意的花盆组合,每一个组合都有详细的材料清单和维护指南。我尝试搭建了一个小型的香草花园,不仅美观,而且收获颇丰,这完全得益于书中对不同香草间伴种植的科学建议。这本书让我从一个园艺的“尝试者”变成了一个有计划的“管理者”,效率和产出都有了质的飞跃。
评分这本书的排版和视觉设计真的无可挑剔,这一点对于我们这类视觉学习者来说太重要了。它完美地平衡了信息的密度和阅读的舒适度。市面上很多园艺书籍要么图太少,要么图文分离,翻起来非常费劲,但这本书不同,每一个关键步骤,比如如何正确地修剪玫瑰、如何为番茄搭设支架,都有清晰的特写照片或精确的线条图来辅助说明。我尤其喜欢它在“工具推荐”那一章的处理方式。它没有盲目推销昂贵或稀有的工具,而是根据不同园艺任务,将工具分为“必备”、“推荐”和“进阶”三个等级,并对每种工具的材质和人体工学设计进行了细致的点评。这让我能根据自己的预算和需求,理性地添置工具,避免了不必要的浪费。这本书的书签和索引设计也很人性化,需要查找特定信息时,能够迅速定位,极大地提升了阅读和参考的效率,它更像一本可以随时放在工作台边的实用手册,而不是束之高阁的参考书。
评分作为一名热衷于可持续发展理念的园艺爱好者,我对这本书中关于生态友好型园艺的阐述深感满意。它没有回避现代园艺中存在的环境问题,而是提供了切实可行的、回归自然的解决方案。例如,关于堆肥的部分,它不仅介绍了传统的“热堆肥”,还详细讲解了“蚯蚓堆肥”和“快速堆肥”等不同方法的优缺点和操作流程,甚至连温度控制和翻堆频率都给出了精确的量化指标。更让我眼前一亮的是,书中有一整章专门讨论了如何利用本土植物来吸引有益昆虫,这对我改善后院的生物多样性非常有指导意义。我按照书中的建议引入了几种本地开花植物,惊喜地发现瓢虫和食蚜蝇的数量明显增加了,这自然而然地控制了蚜虫的爆发。这本书的理念非常先进,它教导我们如何与自然和谐共处,而不是试图完全征服自然,这种潜移默化的教育,比任何说教都更有效。
评分Sunset出版社园艺系列中的一本,很全面的基本知识介绍。
评分Sunset出版社园艺系列中的一本,很全面的基本知识介绍。
评分Sunset出版社园艺系列中的一本,很全面的基本知识介绍。
评分Sunset出版社园艺系列中的一本,很全面的基本知识介绍。
评分Sunset出版社园艺系列中的一本,很全面的基本知识介绍。
本站所有内容均为互联网搜索引擎提供的公开搜索信息,本站不存储任何数据与内容,任何内容与数据均与本站无关,如有需要请联系相关搜索引擎包括但不限于百度,google,bing,sogou 等
© 2026 book.wenda123.org All Rights Reserved. 图书目录大全 版权所有