www.organicneem.com
Neem for Soil Fertility & Fertilizer Management.
Good soil fertility means good crop yields. Preventing the loss of plant nutrients from an ecosystem is important for soil-fertility management. Nitrogen, phosphorus, and potassium (N,P,K) are the three major elements which determine soil fertility and should be ideally present in 4:2:1 ratio; aberrations affect fertility and therefore crop yield. Urea, containing 46% of N, is applied to crops in the largest amounts; but less than half of this N, in the form of nitrate, is available to the crops.
The rest is lost through 'leaching' or by 'volatilization', or by surface run-off after a heavy shower, (Prasad and Power 1995). Leaching of soluble nitrates into the subsoil and, eventually into ground water, is well known. Nitrate losses of 50 to 70% through leaching were observed in rice crops in India.
Leaching not only depletes precious nitrate but also takes away clay, soil, and organic matter, leading to low chemical soil fertility and low plant-available water reserves. Ammonia volatilization also can contribute to a nearly 60% nitrate loss. Loss through volatilization occurs when the denitrifying bacteria reduce the nitrate to elemental nitrogen and nitrous oxide which escape to the stratosphere and cause ozone depletion and also contribute to greenhouse warming. On the other hand, nitrate build-up in drinking water can reduce the blood's ability to transport oxygen, especially if the nitrates are converted into nitrites (blue-baby syndrome). Even ruminants are vulnerable to nitrate or nitrite poisoning, leading to poor growth rates, reduced milk production, and increased susceptibility to infections, and even abortions.
www.organicneem.com
www.organicneem.com
Neem for Soil Fertility & Fertilizer Management.
Good soil fertility means good crop yields. Preventing the loss of plant nutrients from an ecosystem is important for soil-fertility management. Nitrogen, phosphorus, and potassium (N,P,K) are the three major elements which determine soil fertility and should be ideally present in 4:2:1 ratio; aberrations affect fertility and therefore crop yield. Urea, containing 46% of N, is applied to crops in the largest amounts; but less than half of this N, in the form of nitrate, is available to the crops.
The rest is lost through 'leaching' or by 'volatilization', or by surface run-off after a heavy shower, (Prasad and Power 1995). Leaching of soluble nitrates into the subsoil and, eventually into ground water, is well known. Nitrate losses of 50 to 70% through leaching were observed in rice crops in India.
Leaching not only depletes precious nitrate but also takes away clay, soil, and organic matter, leading to low chemical soil fertility and low plant-available water reserves. Ammonia volatilization also can contribute to a nearly 60% nitrate loss. Loss through volatilization occurs when the denitrifying bacteria reduce the nitrate to elemental nitrogen and nitrous oxide which escape to the stratosphere and cause ozone depletion and also contribute to greenhouse warming. On the other hand, nitrate build-up in drinking water can reduce the blood's ability to transport oxygen, especially if the nitrates are converted into nitrites (blue-baby syndrome). Even ruminants are vulnerable to nitrate or nitrite poisoning, leading to poor growth rates, reduced milk production, and increased susceptibility to infections, and even abortions.
www.organicneem.com
www.organicneem.com
Neem for Soil Fertility & Fertilizer Management.
Good soil fertility means good crop yields. Preventing the loss of plant nutrients from an ecosystem is important for soil-fertility management. Nitrogen, phosphorus, and potassium (N,P,K) are the three major elements which determine soil fertility and should be ideally present in 4:2:1 ratio; aberrations affect fertility and therefore crop yield. Urea, containing 46% of N, is applied to crops in the largest amounts; but less than half of this N, in the form of nitrate, is available to the crops.
The rest is lost through 'leaching' or by 'volatilization', or by surface run-off after a heavy shower, (Prasad and Power 1995). Leaching of soluble nitrates into the subsoil and, eventually into ground water, is well known. Nitrate losses of 50 to 70% through leaching were observed in rice crops in India.
Leaching not only depletes precious nitrate but also takes away clay, soil, and organic matter, leading to low chemical soil fertility and low plant-available water reserves. Ammonia volatilization also can contribute to a nearly 60% nitrate loss. Loss through volatilization occurs when the denitrifying bacteria reduce the nitrate to elemental nitrogen and nitrous oxide which escape to the stratosphere and cause ozone depletion and also contribute to greenhouse warming. On the other hand, nitrate build-up in drinking water can reduce the blood's ability to transport oxygen, especially if the nitrates are converted into nitrites (blue-baby syndrome). Even ruminants are vulnerable to nitrate or nitrite poisoning, leading to poor growth rates, reduced milk production, and increased susceptibility to infections, and even abortions.
www.organicneem.com
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