Untitled Quiz

Sodium nitrate increases soil alkalinity, while ammonium sulfate raises soil acidity.

Fertilizers can suppress the activities of bacteria that fix nitrogen, which is essential for soil health.

Irrigation is necessary to provide water to crops in areas that do not receive enough rainfall.

<p>Common water sources for irrigation include rivers, reservoirs, lakes, ponds, wells, and tube wells.</p> Signup and view all the answers

<p>Waterlogging reduces air supply to the roots, negatively affecting proper crop growth.</p> Signup and view all the answers

<p>The swing basket method involves using bamboo baskets or leather and iron sheets to lift surface water.</p> Signup and view all the answers

<p>Modern irrigation systems provide a reliable source of water, crucial for growing crops in dry regions.</p> Signup and view all the answers

<p>Macronutrients and micronutrients.</p> Signup and view all the answers

<p>The Persian wheel method involves bullocks moving in a circle to turn a drum and raise water.</p> Signup and view all the answers

<p>Seeds require the right amount of water to germinate; too little or too much water prevents germination.</p> Signup and view all the answers

<p>Seed drills allow for more accurate sowing of seeds at regular intervals.</p> Signup and view all the answers

<p>Transplantation involves growing seeds in a nursery and transferring healthy seedlings to the field.</p> Signup and view all the answers

<p>Fallowing, which involves leaving the land uncultivated for a season.</p> Signup and view all the answers

<p>Crop rotation prevents nutrient depletion by alternating crops that use different nutrient amounts.</p> Signup and view all the answers

<p>Plants obtain carbon from carbon dioxide in the air, oxygen from air and water, and hydrogen from water.</p> Signup and view all the answers

<p>Proper spacing ensures that plants receive adequate sunlight, water, and nutrients.</p> Signup and view all the answers

<p>It provides a uniform supply of water to crops.</p> Signup and view all the answers

<p>Drip irrigation is the most efficient method of using water, transporting it directly to the root zone.</p> Signup and view all the answers

<p>Parthenium and Amaranthus; weeding is important because it prevents competition for resources and reduces pest spread.</p> Signup and view all the answers

<p>Weedicides destroy unwanted plants without harming the crops; they must be used with care due to their toxicity to humans.</p> Signup and view all the answers

<p>Locusts are pests that fly in swarms and consume large quantities of leaves, damaging substantial crop areas.</p> Signup and view all the answers

<p>Microorganisms like bacteria and fungi can cause diseases that reduce crop yield, such as rust and wilt.</p> Signup and view all the answers

<p>Automatic systems continuously adjust water distribution based on weather conditions and crop needs.</p> Signup and view all the answers

<p>Drip irrigation is the most expensive but most efficient due to its precise delivery of water directly to plant roots.</p> Signup and view all the answers