a note on organic farming in relative with crop rotation,biological pest control, natural manure
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Planting two or three times crop in same field causes loss of nutrient of soil as in West Bengal there are some places where crops are planted three times in field and causes loss in fertile of soil for that they or other use method of crop rotation in which two or three different crops are planted in year so that this circulation would have some benefits .
Pulses plant like pea ,moong dal plant etc.having a bacteria rhizobium which helps plant in converting nitrogen gas to solid forms that can easily taken by plant and plant provides food and basic things like shelter to plant .(Plant directly can't use nitrogen gas directly and it's amount 78% but for plant directly of no use ) .
Biological pest can be controlled by using g different method like decreasing the humidity of grain or food less than 10%,by keeping some chemical whose odour can't allow in the entrance of pest insects .
Some manure which are produced by waste material of animal like cow dung, elephant dung and human faeces ( commonly used) which are converted in to soil like forms which helps in bringing fertility of soil.
Pulses plant like pea ,moong dal plant etc.having a bacteria rhizobium which helps plant in converting nitrogen gas to solid forms that can easily taken by plant and plant provides food and basic things like shelter to plant .(Plant directly can't use nitrogen gas directly and it's amount 78% but for plant directly of no use ) .
Biological pest can be controlled by using g different method like decreasing the humidity of grain or food less than 10%,by keeping some chemical whose odour can't allow in the entrance of pest insects .
Some manure which are produced by waste material of animal like cow dung, elephant dung and human faeces ( commonly used) which are converted in to soil like forms which helps in bringing fertility of soil.
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