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Description
soil fertility and nutrient management Soil Fertility and Nutrient ManagementAuthor : Sharanappa Pages : 166 Year of Publication : 2021 Language : English Binding : Hardback Sustainable agricultural productivity relies on the effective preservation of soil fertility. Among the 16 essential elements required by plants, carbon, hydrogen, and oxygen are derived from air and water, accounting for approximately 96% of a plant's composition. The remaining elements, collectively accounting for around 4% of a plant's makeup, are known
Author : SharanappaPages : 166
Year of Publication : 2021
Language : English
Binding : Hardback
Sustainable agricultural productivity relies on the effective preservation of soil fertility. Among the 16 essential elements required by plants, carbon, hydrogen, and oxygen are derived from air and water, accounting for approximately 96% of a plant's composition. The remaining elements, collectively accounting for around 4% of a plant's makeup, are known as mineral nutrients and are absorbed by plants from the soil. These mineral nutrients play both structural and functional roles within the plants, with some elements offering beneficial effects. The interactions between mineral elements and soil organic matter, clay minerals, soil microorganisms, and other associated mineral elements determine their availability and dynamics in the soil. A thorough understanding of the dynamics of plant nutrients in the soil is crucial for effective nutrient management. Soil organic matter not only provides the necessary nutrients for crops but also enhances the biological and physical properties of the soil. This section offers information on the production and management of organic manures, biofertilizers, integrated nutrient management in cropping systems, and nutrient management in problematic soils.
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4.2 ★★★★★
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Product Reviews
★★★★★ 5
Geat Watch, Simple To Use
Color: yelllow
Great, comfortable watch. Keeps good time. Easy to read face. No bells and whistles, just a good watch.
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Reviewed in the United States on January 26, 2026
★★★★★ 3
cool night time electro backlight
Color: black
decent digital watch big display for older folks, but gains time about 1 /2 seconds a day!
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Reviewed in the United States on November 26, 2025
★★★★★ 5
Better Than I Hoped
Color: blue, Color: blue
I have had Apple Watches for the past 6 or so years. I wanted to try out a basic watch again. I looked at digital watches but some were still over $100. I thought I’d give this watch a try as the price made it a pretty low risk. No notes. It looks great and does what watches are supposed to do. I wish it had a vibrate so I could use it as an alarm clock without waking up my wife.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Watch
Color: green
It is a good watch.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
this is the perfect daily everyday use digital watch........
Color: Black
hands down the best edc digital watch available, this watch is everything you need at a quarter of the cost of other digital watches. we all know the durability of iron man watches its legendary, but where this watch beats even other iron man offerings is the size of the digital numbers displayed a bit larger for aging eyes and what makes it even more durable than the other iron man watch's is that the instructional labeling of the buttons is under the glass and wont fade or rub off under use making it look cleaner and newer for longer. now lets mention the size or foot print of this watch, i own several watches from competing brands and almost once a day i hit the watch on something a door knob a table corner, but when I'm wearing this Timex 40mm i never hit it on anything due to the thinness of the watch.
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Reviewed in the United States on May 11, 2025