Doubtly
@Doubtly · Joined Feb 2021
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- Distinguish between farmyard manure and compost manure. Farmyard manure- It is the decomposed mixture of the cattle excreta and urine along with the litter and leftover organic matter such as fodd... 2
- Explain various methods of fertilizer application. Various methods of fertilizer application are: Broadcasting It refers to spreading fertilizers uniformly all over the field. Suitable for cr... 1
- How does the chemical nature of the soil change due to continued use of chemical fertilizers? The chemical nature of the soil changes due to the continued use of chemical fertilizers because it decreases the soil fertility of that par... 2
- Explain the term eutrophication with suitable example. The process in which water bodies like lake or slow-moving streams receive an extra amount of nutrients that help in the growth of plants su... 1
- During the downpour in a village, the rainwater carried away excess of nitrogenous and other compounds present Once the nutrients get absorbed in the pond water, it would acquire a high concentration of nitrates and phosphates which would result in th... 1
- Write down two advantages of fertilizer over manure. Answer: Fertilizers are rich in specific nutrients and act quickly, whereas manure has low nutrient content and acts slowly. Nutrient-specif... 1
- Compare the use of manures and fertilizers in maintaining soil fertility. Manure Fertilizer Contains organic substance Contains a large amount of chemicals It is biodegradable It is non- biodegradable Increases soi... 1
- Give two limitations of using manure. It is less rich in nutrients. It may lead to spreading of some harmful bacteria 1
- What are the advantages of using manure? These are a good source of macronutrients. Improves soil fertility. Cost-effective. Reduces soil erosion and leaching. Improves the physical... 1
- Choose the micronutrients and macronutrients from the following: Iron, Chlorine, Sulphur, Copper, Nitrogen Micronutrients: Iron, Chlorine, Copper, Manganese, Zinc, Molybdenum Macronutrients: Sulphur, Nitrogen, Calcium, Potassium, Magnesium, Phosph... 1
- Name the three most important nutrients required for plant growth. The three most important nutrients required for plant growth are Nitrogen, Phosphorus and Potassium. 1
- How plants get nutrients? Plants get nutrients from air, water and soil. 2
- Classify nutrients according to their sources. Answer: By source, the 16 plant nutrients come from air (carbon, oxygen), water (hydrogen, oxygen) and soil (the remaining 13). SourceNutrie... 1
- Distinguish between macronutrients and micronutrients. Give suitable examples. Macronutrients Micronutrients These are required in large quantities These are required in small quantities These do not indulge in enzyme a... 2
- sir why dont you invent things that promotes peace ? First of all strength respects strength. To protect the nation, nation should have adequate strength. Hence we need to equip ourselves with... 1
- छाता बारिश को तो नहीं रोक सकता :-APJ ABDUL KALAM छाता बारिश को तो नहीं रोक सकता परन्तु बारिश में खड़े रहने का हौसला अवश्य देता है। इसी प्रकार आत्म विश्वास सफलता की गारंटी तो नहीं देता परन्त... 1
- अगर तुम सूरज की तरह चमकना चाहते हो तो पहले सूरज की तरह जलो। अगर तुम सूरज की तरह चमकना चाहते हो तो पहले सूरज की तरह जलो। चलिए आज हम इस वाक्य का विश्लेषण करेंगे। शायद आप ने सुना हो। अपने विचार अवश्य बता... 1
- शांतिपूर्ण जीवन के लिए दो नियम है। ~अब्दुल कलाम शांतिपूर्ण जीवन के लिए दो नियम है। असफलता में उदासीनता कभी दिल में नहीं उतरनी चाहिए, और सफलता में अहंकार कभी भी दिमाग में नहीं जाना चाहिए। श... 1