Which of the following practices can best assist with both the maintenance of soil fertility and the control of pest and diseases
Answers
Answer : soil fertility management practices include the use of fertilizers, organic inputs, crop rotation with legumes and the use of improved germplasm, combined with the knowledge on how to adapt these practices to local conditions.
pest control : Mechanical and physical control - include tillage, mowing, cutting, mulching and organic soil coverage and barriers.
biological control in organic plant protection is a method of controlling insect pests and diseases using other organisms which rely on predation, parasitism and herbivory, or some other natural mechanisms with active farmer's management interaction
Diseases: protected crops involves skilful manipulation and deployment of factors affecting the outcome of host–pathogen interactions. The most important of these are genetic resistance, control of the aerial and root environments, nursery hygiene, the health status of planting material and appropriate use of fungicides. The precise combination of factors used may vary with crop, time of year, the target spectrum of diseases to be controlled, the economics of alternative actions and between nurseries growing the same crop.