Question

Removal of weeds from the crop field is called

The rearing of honeybees on a large scale is called
ort answer type questions
Give two examples each of kharif and rabi crops.
Define broadcasting.
Which type of seeds float on the surface when put i
What is manuring?
Write the major sources of irrigation of crop fields.
What is crop rotation?
Write the methods of weed removal.​

Answer 1

Answer:

• The process of removal of waste plants competing with crop plants is called as weeding. Weeds compete with crops in obtaining water, sunlight and nutrients. Controlling methods for weeds: Weeds can be tilled along with the soil to kill them.
• Rearing of honeybees is called apiculture. The bees are bred commercially in apiaries. Apiary is an area where a large number of beehives can be placed. Here, the bees are taken care of and managed to produce wax and honey.
• The Kharif crops include rice, maize, sorghum, pearl millet/bajra, finger millet/ragi (cereals), arhar (pulses), soyabean, groundnut (oilseeds), cotton, etc. The rabi crops include wheat, barley, oats (cereals), chickpea/gram (pulses), linseed, mustard (oilseeds), etc.
• Broadcasting is the distribution of audio or video content to a dispersed audience via any electronic mass communications medium, but typically one using the electromagnetic spectrum (radio waves), in a one-to-many model.
• g002. Arabidopsis seeds rapidly release hydrophilic polysaccharides from the seed coat on imbibition. These form a heavy mucilage layer around the seed that makes it sink in water
• Manure is the decomposed form of dead plants and animals, which is applied to the soil to increase production. It is a natural form of fertilizer and is cost-effective. The human and animal excreta is also used as manure. The livestock manure is rich in nitrogen, phosphorus, and potassium.
• The main sources for irrigation water are groundwater from wells, surface water, drainage ponds, rain and municipal water. Drilled wells are a clean source of water for many greenhouse operations however, the water yield from drilled wells is usually limited.
• Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons. It reduces reliance on one set of nutrients, pest and weed pressure, and the probability of developing resistant pest and weeds.
• Methods of weed control: Mechanical method- Involves pulling out weeds with hands or by ploughing.