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To Find Out the Effects of Fertilisers On the Growth of a Crop

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SIULONG TU 1OP4 TO FIND OUT THE EFFECTS OF FERTILISERS ON THE GROWTH OF A CROP Introduction: A fertiliser is a mineral, which we put in plants to make a plant grow properly. There are three main minerals in a fertiliser, which is very important these are: Nitrates, phosphates, potassium. Nitrates - provide nitrogen, which is needed, for making protein. Lack of nitrate stunt growth and yellow older leaves. Phosphates - provide phosphorous needed for photosynthesis a respiration. Lack of phosphates make poor root growth and purple younger leaves Potassium - helps biological agents called enzymes to work properly. These enzymes are needed for photosynthesis and respiration. Lack of potassium makes yellow leaves and dead spots Farmers and gardeners use this kind of fertiliser because is make them grow bigger and good looking plants. Bigger and better means more money for them because the heavy the plant is the more money the farmers make. Prediction: I wish to find out which dose of fertiliser makes the best crops. The general effect on the growth of plants used by fertiliser is that is that is give the plant good mineral for it to grew properly without any bad things happening e.g. yellow leafs My prediction is that the cup with the 2* dosage makes the best crops. ...read more.


The stage the plants are going to grow is probably be starting the grew the wheat because I just got 4 weeks of recording the results. There are 3 cups, which I will be using fertilisers on, and the last one on just water. The container I will use will be normal plastic drinking cups, which I will put in soil and the seeds in it. To measure the plant I will use a small ruler to measure the height of the plants. I will not use a big one, which might destroy the plants and soil. I will record the high of each plant twice a week to see its progress. I will recorded the measurements as accurate as possible by doing it to a decimal place. I will also make a friend do a separate set of results to make sure that it is accurate as possible and if one of our same plant have different set of results I will do the average measure between the two separate reading. It is so important to get the set of results so it will be a fair test. The units I will use is centimetre (cm) The condition I will store the plants in is in a dry warm place, which is room temperature near the window. ...read more.


So to deal with that problem I just try to measure the plant as low as possible avoiding braking the plant and messing the soil up. The other problem was that when I water the plant most of the fertiliser it still at the top (not absorbing) which might drown the plants but 10 minutes later it starts soaking. Comparing my predictions. By my set of results it shows that a pot2 (the normal amount of dosage) grew the best crops by average and my prediction was wrong it grew the lowest amount of crops. I think the double amount of dosage was too high for the plants take in so it couldn't grew properly. But cup2 the normal amount of dosage was the right amount of minerals a plant need for the crops to grow properly. If I could have done the experiment again I would improve the crops by making more plants grow because the experiment I did never grew all the amount crops it was suppose to do. I buried 6 seeds and half of the cups grew all the amount of crops I was suppose to so if I had to do it again I would make sure that I buried all the seeds properly so the seeds have more soil and area to grew. ?? ?? ?? ?? ...read more.

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