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But over time, and in several ways, chemical fertilizers can interfere with plants’ ability to take up nutrients.For one thing, pure chemicals can be hard on the earthworms and micro-organisms in the soil that keep it alive and working, thus making nutrients available to plants (see Effects of Organic and Chemical Inputs on Soil Quality).
On a larger and more relevant scale, manure runoff can and does cause algae blooms and can make water unfit to drink.
Production of rock fertilizers — gypsum, greensand, lime and the rest — involves mining and milling, which in turn require fossil fuels.
It would be stretching things to pretend that organic fertilizers cannot damage plants or the environment.
Sprinkle blood meal directly on your basil, and watch the leaves turn black next time the sun comes out.
Field experiments were conducted from 2011–2013 at three different sites, including Honghu, Shayang, and Jingzhou in China, to determine the effects of fertilization on enhancing crop productivity and indigenous nutrient-supplying capacity (INu S) in a rice (Oryza sativa L.)-rapeseed (Brassica napus L.) rotation.
Four mineral fertilizer treatments (NPK, NP, NK and PK) were applied in a randomized complete block design with three replicates.
Fertilizers or fertilisers are compounds given to plants with the intention of promoting growth; they are usually applied either via the soil, for uptake by plant roots, or by foliar spraying, for uptake through leaves.
New research helps explain how iron in the soil may unlock naturally occurring phosphorus bound in organic matter, which can be used in fertilizer, so that one day farmers may be able to reduce the ...
There are several organic fertilizer benefits, some purely altruistic, others much more self-interested.
After all, nitrogen, phosphorus, and potassium ARE chemicals, so where is the advantage in these bags of heavy, grainy stuff, that need to be measured and mixed and then dug in, when you can just pick up a small plastic bottle of the blue stuff?