Pros and Cons of Organic vs. Chemical Fertilizers | Today's Homeowner
Inorganic and organic fertilizers are applied to maintain the nutritional There are close relationships between the excessive application of nitrogen a high concentration of nitrate has negative effects on human health . Thus our study provides the evidence for using organic fertilizer like cow dung by establish a workable relation between environment preservation and fertilizers . Legumes are an important source of protein for humans. fertilizer, organic fertilizer or biofertilizer has its advantages and disadvantages in . human health. THE ROLE OF have a mutually helpful relationship with their host plants. legumes are less reliant on inorganic N fertilizer than many other.
The results of this pot experiment show that the total nitrogen concentration in soil and the nitrate concentration in lettuce increased as the amount of nitrogen fertilizer increased. Introduction Nitrogen is an essential element required for successful plant growth. Although inorganic nitrogen compounds i.
The Debate over Organic vs. Chemical Fertilizers
Inorganic and organic fertilizers are applied to maintain the nutritional condition of different cropping systems. For an organic agricultural system, continuous application of manure increases the nitrogen Nphosphorus Ppotassium Kcalcium, and magnesium content in soil [ 23 ]. Once organic fertilizers are applied to soils and mineralization begins, inorganic nitrogen is released and absorbed by plants. However, the rate of mineralization is controlled by several factors, including agricultural management, microorganism, soil properties, temperature, and water content [ 456 ], as well as the type of organic fertilizer [ 7 ].
Many models have been developed to predict the release of nitrogen in applied organic fertilizers [ 68 ].
Inorganic Fertilizer Vs. Organic Fertilizer | Home Guides | SF Gate
Once nitrogen fertilizers are applied to agricultural systems, the fertilizers are absorbed directly by plants or converted into various other forms through the oxidation process. Excess nitrogen is lost in ionic or gaseous form through leaching, volatilization, and denitrification [ 19 ].
If nitrate is not absorbed by plant roots, it is carried away by runoff or leaches into the soil along with water [ 9 ]. The phytoavailability of the nitrogen pool increases when excess nitrogen is applied, and this increase intensifies the potential threat to the surrounding environment [ 10 ].
There are close relationships between the excessive application of nitrogen fertilizers and environmental problems such as eutrophication, the greenhouse effect, and acid rain [ 1112 ]. Consuming contaminated groundwater or crops with a high concentration of nitrate has negative effects on human health [ 13 ].
Champ; however, the excess nitrogen that accumulates in the soil if double the amount of manure is applied may result in a decrease in yield [ 10 ]. According to the results of previous studies, the accumulation of nitrates in the edible parts of crops is directly related to the type of nitrogen fertilizer used [ 1516 ], as well as the soil properties. Regarding lettuce, the light intensity [ 17 ], timing of fertilizer-N release [ 18 ], and lettuce type [ 19 ] have been shown to affect the accumulation of nitrates in this crop.
Rationalizing fertilizer application is an important issue for sustainable agriculture because it can reduce the negative effects of farming on the surrounding environment [ 20 ].
An agricultural system should include yield and environmental quality during management. Green leafy vegetables contain the highest nitrate levels [ 21 ], and lettuce is classified as having very high nitrate content [ 22 ]. Because consuming high levels of nitrate may further lead to severe pathologies in humans [ 23 ], cultivating edible crops with low nitrate content is very important. In this study, a pot experiment was conducted using various types of nitrogen fertilizers, application rates, and combinations of rates and fertilizers.
The objective of the present study is to develop an agricultural system that produces healthy lettuce that has low nitrate content. Terminology To begin with, the terminology can be confusing, since labels and gardeners freely throw around words like organic, natural, inorganic, chemical, synthetic, artificial, and manufactured.
The good news is that the choice can be reduced to either organic or chemical fertilizers. Organic fertilizer is usually made from plant or animal waste or powdered minerals. Examples include manure and compost, as well as bone and cottonseed meal. Organic fertilizers may be processed in a factory, or, in the case of manure and compost, at a farm. There is also a growing selection of more highly processed products now available, with labeled analysis of nutrients and contents.
Garden Safe Organic Plant Food is made of poultry manure with a label very similar to chemical fertilizers. Advantages of Organic Fertilizer: In addition to releasing nutrients, as organic fertilizers break down, they improve the structure of the soil and increase its ability to hold water and nutrients.
Over time, organic fertilizers will make your soil—and plants—healthy and strong. Organic fertilizers are renewable, biodegradable, sustainable, and environmentally friendly. Although rather expensive in packages, you can make your own organic fertilizer by composting or find inexpensive sources—such as local dairy farms—that may sell composted manure.
Inorganic Fertilizer Vs. Organic Fertilizer
Disadvantages of Organic Fertilizer: Microorganisms are required to break down and release nutrients into the soil. Since they need warmth and moisture to do their job, the effectiveness of organic fertilizer is limited seasonally.
The good news is that these microorganisms obtain energy from decaying plant and animal matter, so an application of organic fertilizer provides a complete package of nutrients for your soil. In fact, you may actually see a deficiency in your plants during the first couple of months until the first application breaks down. Nutrient ratios are often unknown, and the overall percentage is lower than chemical fertilizers. However, some organic products are actually higher in certain nutrients.