Monday, October 21, 2019

Organic Pesticide Use essays

Organic Pesticide Use essays Many means are used by organic farmers to control pests and raise soil fertility without the harmful effects of pesticides. The most popular and well-used include crop rotation, timed plantings, natural sprays, controlled pH of soil and composting. When an organic farmer uses crop rotation, particular pests die when their food source is removed, along with changes in the pH of the soil. Raising the pH of the soil reduces the amount of weeds by increasing the rate of growth-reducing nutrients. This, together with soil fertility, may be favorably affected by using composts. For example: hay, manure, lime, fish guts, wood ash and sea weed are all commonly used to increase the fertility of the soil and, therefore, better the excellence of the crop. Disease is also a common factor in organic farming and may be repressed by soil solarization. Its a simple, safe, cost-efficient and effective way to take care of crop-damaging bacteria by using the sun to create high enough temperatures to eliminate the disease without becoming harmful to the plants. Fungi may also be exterminated by spraying with organic sprays, for instance, chive tea, milk mix and sea weed spray. Insects and pests are another matter entirely. There is no way to deal with pests except through the use of crop rotation and by means of natural organic sprays such as: petroleum oil, soap spray, garlic spray and lime sulphur which suffocate the insects. Various numbers of the above are also used on weeds, though tilling the soil and burning off fields are also utilized. When this is done, the field stubble is raked up and the fields are burned, killing off all the weeds. This is extremely effective though it may be restricted in dryer parts of the country or during t he summer. Some of the insect organic sprays may not be as effective as normal pesticides, but the end result is much better. When pesticides are used, they paralyze the insects by destroying their ner ...

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