Last seen: Jan 25, 2021
(a) 97°25′ E
(a) Production of vegetables and fruits commercially is called horticulture. (b) The green plants like guar or sun hemp are turned into the soil whi...
(a) The rearing of fish on large scale is called pisciculture. (b) Two varieties of fish are bony and cartilaginous. (c) Environmentalist showed t...
(a) The common pesticide is DDT. (b) Organic farming: It is a farming system with minimal or no use of chemicals as fertilizers, herbicides, pestici...
(a) Two waste used for compost are vegetable peels and fruit peels. Two waste material that cannot be used as compost are polythene bags and plastic i...
The practices required for raising daily animals to get the optimum yield are: (i) Shelter, (ii) feeding, (iii) rearing of animals, (iv) breeding. ...
The different types of fisheries are marine fisheries, inland fisheries, capture fishing, mariculture and aquaculture. Marine fisheries: Marine fi...
Food grains get spoiled by insects, fungi, rodents, bacteria, moisture, temperature in the place of storage. Storage losses can be minimised by foll...
Most of agriculture in India is rain-fed, several different kinds of irrigation system are adopted to supply water to agricultural lands. The resou...
Egg-layers 1. They are fed on protein-rich feed. 2. Used for laying eggs. Broiler 1. They are fed on vitamin-rich supplementary feed for good ...
The new variety/traits obtained by cross breeding of Indian and exotic breeds of poultry are: Number and quality of chicks. Dwarf broiler parent ...
Weeds can be controlled by different methods: (a) Weedicides: These are the chemicals sprayed on the weeds to kill them. Excessive use is poisonous ...
Insect pests attack the plants in three ways: They cut the root, stem and leaf. They suck the cell sap from various parts of the plant. They bor...
Different ways/patterns / systems of growing crop’s are: (a) Mixed cropping (b) Inter-cropping (c) Crop rotation. Mixed cropping: It is a meth...
Different ways/patterns / systems of growing crop’s are: (a) Mixed cropping (b) Inter-cropping (c) Crop rotation. Mixed cropping: It is a me...
Fertilizers are obtained artificially on commercial basis. It is a chemical which contains the nutrients required for the crop to grow. Fertilizers su...
Manures contain large quantities of organic matter and supplies small quantities of nutrients to the soil. It is prepared naturally by the decompositi...
Source - Nutrients Air - carbon, oxygen Water - Hydrogen, oxygen Soil - Macro-nutrients (six) - Nitrogen, phosphorus, potassium, calcium, magnes...
(a) Higher yield: It increases production of crop. (b) Biotic and abiotic resistance: Crop should be resistant to biotic factors like diseases, inse...