Smudges are defined as dark spots that are often created on the foliage following the fall of honeydew produced by the aphids. These spots are caused by the proliferation of microscopic fungi, which feed on the sugar contained in the honeydew; the fumaggini are certainly harmful from an aesthetic point of view, since they smear leaves and fruits; if they proliferate excessively they are also harmful for the whole plant, because they inhibit the photosynthesis of the leaves covered by the fungi.
Plants are living organisms, as such they live by transforming into energy what nature gives them; energy is obtained from plants thanks to chlorophyll photosynthesis, which uses sunlight; in order to develop their cells, plants acquire a lot of nutrients from the soil, which are absorbed by the roots.
On this page we will talk about: other articles: Cutting is a widely used propagation method, since it offers considerable advantages: many cuttings root very easily, requiring few tricks for the success of the operation; from a single plant, even a small one, you can get countless cuttings; in general the plants obtained by cuttings are identical to the mother plant.
There are many types and many models of tanks; for the terrace it is preferable to use rectangular basins, which have the same base if not wider than the apex, in order to ensure greater stability. It should be remembered that plants need a good water tank, especially during the summer when the sun shines on the balconies and the temperatures are really high.
The common lawn, the one cultivated with grasses, is constituted by innumerable small perennial ground cover plants, which develop close to each other; among them fall leaves, debris, clippings, which over the months constitute a thick layer, called felt. This layer of decomposing vegetable products creates over time a real barrier, difficult to be crossed by water and mineral salts brought from outside.
The quince is one of the "forgotten" fruit trees whose memory is by now lost, and only a few specimens were still cultivated; fortunately in recent years we are witnessing a return to the cultivation of the plants of our grandparents, whose fruits are perhaps not as beautiful as those of the selected varieties, but which can bring many advantages.
The apple is one of the most cultivated fruits in the world, in fact the apple plant, called Malus communis or Malus domestica, has a history that has lasted for millennia, and probably originated in Western Asia, from where it first spread to Greece, then in the rest of Europe, and centuries later in the rest of the world.
Leaf morphology The leaf is made up of several parts, an expanded called Lembo, from a peduncle, called petiole, which is inserted on the branch widening in the sheath, from main and secondary ribs, etc. In some plants there is no petiole, in these cases the leaf is called sessile.
Root morphology: Root The root is divided into 5 main parts: Root-apex: meristematic tissue that allows the growth in length of the roots. Smooth zone: part immediately behind the apical meristem, where there is the differentiation of the cells into tissues.
On this page we will talk about: other articles: The term mulching refers to the operation of covering the ground with inert material; this operation is performed for some main reasons, the main one being to avoid the growth of weeds, in the flowerbeds and in the vegetable garden.
Nutrients Nitrogen: It is the most important nutritional element for plants and living organisms in general, since it is fundamental for the constitution of proteins, nucleic acids and other cellular constituents. It is found in large quantities both in the rocks and in the atmosphere, of which it constitutes about 78%; unfortunately, however, it is one of the most difficult elements to find for living organisms, since it can only be absorbed if it takes on particular chemical forms.
Almost all fruit requires a neutral or slightly acid soil, while figs and grapes bear a slight alkalinity. Each plant therefore has special requirements in terms of pH. And it is therefore very important to be able to measure its value before planting a garden or using a substrate.
Nutrient elements Iron: Iron is a catalytic microelement, considered among the ten elements essential to plant life; among those elements, that is, that if one fails, only the plants cannot survive. In plants it is present mainly in the leaves, accumulated mainly in chloroplasts where it participates in the synthesis of chlorophyll, the very important pigment that colors green plants and in chlorophyll photosynthesis where it transforms light energy into chemical energy.
All roses require regular and adequate pruning. Pruning is in fact the most important operation for the future life of these plants, as well as for flowering. When it is well done it corrects the shape, stimulating the vegetation and significantly influencing flowering, both in terms of distribution and volume.
Nutritional elements Phosphorus: Phosphorus is a basic element for ornamental and flowering plants because it is linked to flower formation, root development and bud structure. In the soil it is present in significant quantities in the form of mineral (various types of phosphate), or it can be found contained in the organic component, namely the Humus.
Potassium is an element contained in many minerals, in fact it is widespread in many soils of volcanic and alluvial origin. It can also be found contained in the organic substance. The potassium used by plants is therefore soluble, which is free in the circulating solution (water and nutrients) of the soil.
Nutrients Calcium: Calcium is the natural component of most of the original materials of soils, present in many soils in the form of carbonate, phosphate, silicate and in organic matter. In the soil it combines with other nutrients reducing the solubility of both.
Shape of the Rib From the rib of the leaves we can go back to the species of the plant and clarify any doubts regarding the classification. Knowing the veins of the leaves is a basic element for becoming a good botanist and starting to study the classification of plant species.
Root: Metamorphosis of the roots In some cases the shape of the root, and also its function, differ from the common type now described. In fact, there are some roots, called aerial roots which have a large surface area, but are free of absorbent hairs. They never reach the ground and therefore absorb moisture from the atmosphere.
A good gardening enthusiast certainly cannot ignore the leaflet and its various forms. Knowing the various forms of the leaf flap can help in the botanical classification of species and this article gives an overview of the most widespread forms. Celaflor Antiparasitic insecticide for roses, combined action, 2 bottles of 100 ml Price