Agricultural Science

Agricultural Science

CLASSIFICATION OF ANIMAL FEEDS

This is based on nutrient composition: Feed additives. Roughages Are feeds of low available nutrients per unit weight and high fibre content Examples: Dry roughages, Succulent roughages, Residues from agricultural by products and conserved materials. Characteristics Low level of available nutrients. Have high level of calcium especially legumes. Good source of vitamin A. Have high

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Agricultural Science

STORAGE – WELL EXPLAINED

What is storage. Storage is to prevent spoilage, make the produce available for future use, to await good market prices. Requirements for proper store are: It should be clean. It should be well ventilated. It should be raised from the ground to prevent damp conditions. It should be dry. It should be strong to hold

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Agricultural Science

FIELD PRACTICES – PROPERLY EXPLAINED

FIELD PRACTICES – CROP ROTATION, MULCHING, ROUTING FIELD PRACTICES & HARVESTING Introduction Field practices are activities carried out on the field to facilitate proper growth and maximum yield of the various crops grown. They include the following: Crop Rotation Mulching Routing field practices Crop protection Harvesting Crop Rotation This is the growing of different types

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Agricultural Science

TYPES OF NURSERIES – VEGETABLE, TREE, GRAFTING

Nurseries: We have different types of nurseries and they are vegetable nurseries, tree nurseries, grafting nurseries and layering nurseries. The types of nurseries are well explained below. Categories of nurseries: Vegetable Nursery: They are used for raising the seedlings of vegetable crops. Tomatoes, cabbages, kale, onions, brinials and peppers. Vegetable Propagation Nurseries: They are used

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Agricultural Science

BEST NURSERY PRACTICES

Introduction Planting materials are either planted directly in a seedbed or indirectly through a nursery bed. A seedbed is a piece of land which could be small or large and prepared to receive planting materials. A nursery bed on the other hand is a small plot of land specially prepared for raising seedlings or planting

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Agricultural Science

SEED RATE – WELL EXPLAINED

Seed rate is the amount of seeds to be planted in a given unit area governed by ultimate crop stand which is desired. The objective of correct spacing of crop is to obtain the maximum yields from a unit area without sacrificing quality. Most crops are seeded at lighter rates under drier conditions than under

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Agricultural Science

CROP SPACING – WELL DETAILED

It is the distance of plants between and within the rows. Correct spacing for each crop has been established as shown in table below. Crop Maize (Kitale) hybrids spacing 75-90 cm x 23—30 cm Crop Coffee (Arabica) tall varieties spacing 2.75 cm v 2.75 m Crop Tea spacing 1.5 m by 0.75 m Crop Beans

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Agricultural Science

TIME OF PLANTING – WELL EXPLAINED

INTRODUCTION Time of planting or sowing is influenced by the type of crop to be planted and the environmental conditions of the area. Factors to consider in timing planting.b The rainfall pattern/moisture condition of the soil. Type of crop to be planted. Soil type. Market demand. Prevalence of pests and diseases. Weed control. Timely planting

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Agricultural Science

PREPARATION OF PLANTING MATERIALS

After the planting materials are selected they are prepared in different ways before they are planted. Some of the methods used to prepare planting materials include the following: (a) Breaking the seed dormancy. Some seeds undergo a dormancy period between maturity and the time they sprout. The dormancy period is the stage whereby a seed

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Agricultural Science

SELECTION OF PLANTING MATERIALS

Introduction When selecting materials for planting the following factors must be considered: Suitability to the ecological conditions The selected planting materials should be well adapted to the soil conditions, temperatures and amount of rainfall in the area. There are many varieties of maize, for example, which are suitable to different ecological conditions. Hybrid 622f or

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Agricultural Science

FACTORS AFFECTING ROOTING OF CUTTINGS

Temperature: for the cuttings to produce roots warm temperatures are required around the root zone while cool temperatures are important for the aerial part of the cuttings. For most species optimum day and light temperatures for rooting are 22 -27°c and 15-21° c respectively. a) Relative humidity:Proper rooting of cuttings requires high humidity which lower the

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Agricultural Science

VEGETATIVE MATERIALS

VEGETATIVE MATERIALS – ADVANTAGES, DISADVANTAGES AND PLANT PARTS These are plant parts which have the ability to produce roots, they grow and develop in to new plants. Plant parts such as leaves, roots or stems can be used for planting as long as they are capable of rooting. Advantages of using vegetative materials for planting.

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