Give two harmful effects of high population density in a maize crop grown for grain production5/3/2023 GIVE TWO HARMFUL EFFECTS OF HIGH POPULATION DENSITY IN A MAIZE CROP GROWN FOR GRAIN PRODUCTIONANSWER
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STATE FOUR WAYS BY WHICH PLANT NUTRIENTS MAY BE LOST FROM THE SOILANSWER
five nursery management practices (5 mks)
Five reasons of keeping farm records ( 5mks)
four factors that determine the nutrient content hay. (4mks)
four benefits of adequate supply of water in vegetable crop production. (4mks)
Procedure of constructing a cut off drain (2 mks)
four examples of fixed costs in maize production (2mks)
Integrated Pest Management: A Holistic Approach to Sustainable Pest ControlMeaning of integrated pest management This is a combination of physical, chemical, biological and cultural pest control methods Meaning of Integrated Pest Management
Integrated Pest Management (IPM) is a comprehensive approach to managing pests that aims to minimize the use of chemical pesticides and promote sustainable pest control practices. It is a strategy that combines different methods and techniques to prevent, monitor, and control pests in an effective and environmentally friendly manner. IPM takes into account the biology and behavior of pests, as well as the ecosystem in which they exist. It emphasizes the use of various strategies, such as biological control, cultural practices, and the judicious use of pesticides, to achieve long-term pest management goals. One of the key principles of IPM is prevention. By implementing preventive measures, such as maintaining proper sanitation, practicing crop rotation, and using resistant plant varieties, the likelihood of pest infestations can be significantly reduced. This proactive approach helps to create an unfavorable environment for pests, thereby minimizing the need for chemical interventions. Monitoring and identification are also crucial components of IPM. Regular monitoring allows for early detection of pest populations and helps in determining the most appropriate control measures. By accurately identifying the pests, their life cycles, and their vulnerabilities, targeted interventions can be implemented, reducing the reliance on broad-spectrum pesticides. Biological control is an integral part of IPM. It involves the use of natural enemies, such as predators, parasites, and pathogens, to control pest populations. These natural enemies prey on or infect pests, helping to keep their populations in check. This method is environmentally friendly and sustainable, as it does not harm beneficial organisms or disrupt the natural balance of ecosystems. Cultural practices, such as crop rotation, proper irrigation, and the use of trap crops, can also play a significant role in pest management. By altering the growing conditions or diversifying the crop species, pests can be discouraged or deterred, reducing the need for chemical control methods. When chemical control is deemed necessary, IPM emphasizes the judicious and targeted use of pesticides. Instead of blanket applications, pesticides are used selectively and in a manner that minimizes their impact on non-target organisms and the environment. Integrated Pest Management promotes the use of low-toxicity pesticides, as well as non-chemical alternatives, whenever possible. In conclusion, Integrated Pest Management is a holistic and sustainable approach to pest control that aims to minimize the use of chemical pesticides while effectively managing pest populations. By combining preventive measures, monitoring, biological control, cultural practices, and targeted pesticide use, IPM provides a comprehensive and environmentally friendly solution to pest management challenges. Meaning of production function ( 1mk)
It is the physical relationship between resource input and corresponding output/product three organic farming practices (1.5 mks)
Plant part used for vegetative propagation (2mks)
Two ways by which predators affect agricultural production
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