What happens when same crop is cultivated years after years on the same field?
Answers
this will decrease the fertility of soil and also the soil will get deficient in some of thw minerals which gets used up.
HI MATE!
here is ur answer:
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It depends on the crop, and the soil and the microclimate and the region but mostly, its not a good idea. Pests & diseases build up, and consequently yields fall & expenses rise. Of course - it can be quite tempting to specialise in one crop and grow it year after year because economies of scale & skills can be developed. In some cases it can work, if the annual growing cycle is short and fertility building (like legumes) or pest deterring rotational plants (like mustards) are grown between plantings. Often Jersey royal potatoes are grown on the same field but the growing period is very short - maybe only 3 months of the year. In the 1970s farmers in the UK started growing continuous winter wheat but after 3 years “take-all” started to develop and most of the crops went white & died. After about 5 years “take-all decline” set in and yields started to improve again, but rotation is still better, and its absolutely essential for organic growers. Continuous spring crops like oats or barley can be done successfully for a few years if undersown with clover but after a while particular weeds that are adapted to the niche (like poppies or charlock) start to overtake the crop. Of course most farmers use chemical herbicides to control weeds and fungicides to control diseases but after a while they start to lose effectiveness, so the farmer needs to keep on increasing the dose. Thats my experience anyway.
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HOPE IT HELPS!!
PLZ MARK AS BRAINLIEST:-)