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| 1. |
Explain breifly the three method of crop production which ensures high yield ? |
| Answer» <html><body><p>inter cropping , mixed cropping and crop rotation Explanation:Mixed cropping is growing two or morecrops simultaneously on the same piece ofland, for example, wheat + gram, or wheat +mustard, or groundnut + sunflower. Thisreduces risk and gives some insuranceagainst <a href="https://interviewquestions.tuteehub.com/tag/failure-983002" style="font-weight:bold;" target="_blank" title="Click to know more about FAILURE">FAILURE</a> of one of the crops.Inter-cropping is growing two or morecrops simultaneously on the same field in adefinite pattern .A few rows of onecrop alternate with a few rows of a secondcrop, for example, soyabean + maize, or fingermillet (bajra) + cowpea (lobia). The crops areselected such that their nutrientrequirements are different. This ensuresmaximum utilisation of the nutrientssupplied, and also prevents pests anddiseases from spreading to all the plantsbelonging to one crop in a field. This way,both crops can give better returns.(gokhroo), Parthenium (gajar ghas),Cyperinus rotundus (motha). They competefor food, space and light. Weeds take upnutrients and <a href="https://interviewquestions.tuteehub.com/tag/reduce-1181332" style="font-weight:bold;" target="_blank" title="Click to know more about REDUCE">REDUCE</a> the growth of the crop.Therefore, <a href="https://interviewquestions.tuteehub.com/tag/removal-1184751" style="font-weight:bold;" target="_blank" title="Click to know more about REMOVAL">REMOVAL</a> of weeds from cultGenerally insect pests attack the plantsin three ways: (i) they cut the root, stem andleaf, (ii) they suck the cell sap from variousparts of the plant, and (iii) they bore into stemand fruits. They thus affect the health of thecrop and reduce yields.Diseases in plants are caused bypathogens such as bacteria, fungi and viruses.These pathogens can be present in andtransmitted through the soil, water and air.Weeds, insects and diseases can becontrolled by various methods. One of themost commonly used methods is the use ofpesticides, which include herbicides,insecticides and fungicides. These chemicalsare sprayed on crop plants or used for treatingseeds and soil. However, excessive use ofthese chemicals creates problems, since theycan be poisonous to many plant and animalspecies and cause environmental pollution. IntercroppingThe growing of different crops on a pieceof land in a pre-planned succession is knownas crop rotation. Depending upon theduration, crop rotation is done for differentcrop <a href="https://interviewquestions.tuteehub.com/tag/combinations-922706" style="font-weight:bold;" target="_blank" title="Click to know more about COMBINATIONS">COMBINATIONS</a>. The <a href="https://interviewquestions.tuteehub.com/tag/availability-15037" style="font-weight:bold;" target="_blank" title="Click to know more about AVAILABILITY">AVAILABILITY</a> of moistureand irrigation facilities decide the choice of thecrop to be cultivated after one harvest. If croprotation is done properly then two or threecrops can be grown in a year with goodharvests.</p></body></html> | |