Rainy season essay for nursery

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When weeds are used to make compost, the high temperature of the compost-making process kills many, but not all, of the weed seeds. Even the noxious weed, parthenium, has most of its seeds killed when it is made into compost following the instructions given in this booklet. Fertile soil produces strong plants able to resist pests and diseases. When crop residues are used to make compost, many pests and diseases cannot survive to infect the next seasons crops. 5) It helps the soil resist erosion by wind and water. This is because: Water can enter the soil better and this can stop showers building up into a flood.

Therefore, because heavy clay soils become lighter, and sandy soils become heavier, soil that has had compost added to parrot it is easier to work,. To plough and dig. 3) It improves the moisture-holding capacity of soil. The humus is a dark brown or black soft spongy or jelly-like substance that holds water and plant nutrients. One kilogram of humus can hold up to six litres of water. In dry times, soil with good humus in it can hold water longer than soil with little humus. In Ethiopia, crops grown on soil with compost can go on growing for two weeks longer after the rains have stopped than crops grown on soil given chemical fertilizer. When it rains, water easily gets into the soil instead position of running off over the surface. Water gets into the subsoil and down to the water table so that runoff and thus flooding is reduced, and springs do not dry up in the dry season. 4) It helps to control weeds, pests and diseases.

rainy season essay for nursery

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Because compost is made up of humus, it can be used for improving soil as follows: 1) It improve provides plant nutrients that are released throughout the growing season. The plant nutrients are released when organic matter decomposes and is changed in to humus. The plant nutrients dissolve in the water in the soil and are taken in by the roots of the crops. 2) It improves soil structure so that plant roots can easily reach down into the soil. In sandy soil the humus makes the sand particles stick together. This reduces the size of the spaces (pores) so that water stays longer in the soil. In clay soils, the humus surrounds the clay particles making more spaces (pores) in the soil so the root systems of plants can reach the water and nutrients that they need, and air can also move through the soil.

rainy season essay for nursery

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In a healthy soil, there is a very large mixed population of all these organisms. They each have a role to play in keeping the soil healthy, and hence, also the crops that grow on the soil. Pests are not usually a problem in a healthy soil. Thus, healthy soil produces healthy food. The character of compost.1 Why is compost important? Compost is important because it: 1) Contains the main plant nutrients nitrogen (N phosphorus (P) and potassium (k often written as npk; 2) Improves the organic matter in the soil by providing humus; 3) Helps the soil hold both water and air for plants; and. 2.2 What can compost be used for?

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rainy season essay for nursery

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Some of the water in the soil is held tightly by the soil particles, especially by the clay, and plants cannot use. Other water moves more freely through the pores, and this is available for plant growth. Humus acts as a water reservoir for the plant roots and other organisms in the soil. It can hold up to six times its own weight in water. The air in the soil has much more carbon dioxide than the above ground atmosphere.

This is because the plant roots and the other living tennis things in the soil produce carbon dioxide when they breath, but the movement of air in the soil is slow and the carbon dioxide does not move out into the air as fast as from. There resume are many organisms that live in the soil, The bacteria and fungi are particularly important in breaking down plant and animal waste materials, and making plant nutrients available. Many fungi and bacteria also help in transferring nutrients from the soil to the roots of plants. The larger animals, worms, beetles, etc. Help break down dead things into a condition that the bacteria and fungi can digest. These animals also move and mix the soil, sometimes dramatically like earthworms and termites.

In a healthy soil, all these particles are coated with a layer of humus. This gives the soil its brown colour, good smell and structure. The humus also holds and helps keep plant nutrients and water in the soil. The nutrients in the humus are released slowly and constantly, as long as there is enough moisture. Humus helps the soil particles stick together, but they do not fit tightly together. A loam soil with good humus has spaces or pores between the particles for water and air to get into and move through the soil.

Humus is important for a soil because it: Holds moisture, like a sponge, Holds nutrients for plant nutrition and growth of micro-organisms particularly fungi and bacteria, Acts as a buffer against changes in pH of the soil, Allows air to get into the soil, and. Contributes to a good soil structure. A healthy soil contains 12 or more percent of carbon,. The organic matter is the source of energy for the bacteria, fungi and other organisms in the soil. These organisms break down dead plant and animal remains releasing carbon dioxide, water and mineral salts, including nitrates, phosphates, etc. Which are the nutrients for growing plants.

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Clay soil is very soft when wet as the particles are very small. They stick together even when the soil is dry and hard. Clay particles swell when they get wet and water cannot pass through easily, natural soils consist of combinations of sand, silt and clay. The sand holds some plant nutrients and helps provide good drainage of excess water from a soil. Silt holds more plant nutrients and helps to hold water in the soil. Clay holds even more plant nutrients and water, but has little air. Loam or plan loamy soil contains a balance of sand, silt and clay.

rainy season essay for nursery

The decayed and decomposed remains of living admission organisms—humus. The solid particles provide the basic structure or skeleton of the soil. Generally three types of particles are recognized: sand, silt and clay. Sandy soil is rough to feel because it is made of large grains. Sandy soil does not hold much water. Silty soil is finer to feel than sandy soil. When it is moist, the particles stick together in crumbs.

using natural fertilizers, such as compost. Natural fertilizer comes from the breakdown and decomposition of animal wastes and plants; for example, cow dung, sheep, goat or chicken droppings, urine, decomposed weeds and other plant or animal remains, such as waste from preparing food. The fertilizer can also be made of chemicals in a factory. Farmers have to buy this type of fertilizer from the market or through farmers service cooperatives. Therefore fertilizers are of two types:. Natural fertilizer, including compost,. Throughout the world there are many options for replacing the plant nutrients lost from soil, but, in our case and in many other parts of Sub-Saharan Africa where most of the agriculture is done by smallholder farmers, the best option is compost produced by human. Good quality compost can also be made from organic household wastes in urban areas and be used to grow healthy vegetables in gardens at home or by school environment club or youth group members. 1.2 soil, the soil is a complex mixture of the following: Non-living materials—solid particles from broken down rocks, air and water; living organisms—bacteria, fungi, many small and very small (microscopic) animals, plants such as algae and plant roots; and.

One of the best natural fertilizers is mature compost because it feeds summary the soil with humus and plant nutrients. The growing plants take their nutrients from the top layers of the soil where their roots grow. Plant nutrients are lost from the soil when they are washed down (leached) below the top soil, or when the top soil is eroded. Plant nutrients are also lost with the crops when these are harvested. When the surface of the land is broken up for farming, the soil is often eroded: it is blown away by the wind or washed away by rain and floods. The soil also loses much of its carbon content as carbon dioxide (CO2) into the atmosphere, thus contributing to climate change. The soil that is left becomes poor in plant nutrients so the crops do not grow well and give a good yield.

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Natural fertilizer and healthy soil.1 Fertilizers, natural fertilizer, often called compost, provides the food needed for a plant to grow after a seed has germinated in the soil. This food consists of plant nutrients. The most important, called macro, of these nutrients are nitrogen (N phosphorus (P) and potassium (K). There are also many other nutrients needed by plants in small quantities,. Copper (Cu) manganese (Mn magnesium (Mg iron (fe sulphur (S) and others. These are called micronutrients or trace elements. Natural fertilizer also provides organic matter called humus for the soil. Humus is a black or brown spongy or jelly-like substance. It helps the soil have a good structure to hold water and air.

rainy season essay for nursery
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