Improve Quality and Quantity of Plant Products by Applying Potassium Nutrient (A Critical Review).

Abstract

Nitrogen, phosphorus and potassium are regarded as the main nutrients necessary for
 plant growing. Each of these fertilizers has significant effects on plants growth. Their
 functions are somehow in relationship to each other. The purpose of this article is to show
 the importance of the potassium nutrient on the crops life. This kind of nutrient is
 disregarded in Kurdistan. Generally, the farmers have not information about the impacts
 of potassium. Hopefully, this study will encourage scientists to do more research on
 effects of potassium on plants. On the other hand, this article is going to be a key for
 using potassium fertilizer as an important mineral for the crops in the Kurdistan at the
 best way. Two factors are more important for every farmer to know before using the
 fertilizers (Fertilizers cost and environment pollution). As known, for getting fertilizers
 farmers must be paid, and fertilizers can damage the environment if these are not used
 correctly. Hence, for solving the above problems, a soil sample must be sent to a
 laboratory for physical and chemical testing before application of fertilizers. Farmers
 must know about appropriate nutrients and amount to add to the soil. Application of little
 amount of nutrients cannot grow crops and too many nutrients can run off the fields and
 pollute streams and ground water. Fertilizers have important purpose and function.
 Hence, farmers must be careful to practice the right dose, at the right time, to avoid
 negative effects of the fertilizers on the environment.

Growth And Yield Response of Flax (linum Usitatissimum L.) to Different Rates of Charcoal And Potassium Fertilizer in Erbil, Kurdistan Region-iraq

“…Potassium fertilizer has an impact role to improve not only the yield but also the quality. These results were in agreement with (Salih et al, 2014a;Salih et al, 2014b;Salih et al, 2014c;Salih et al, 2015;Salih, 2015;and Salih et al, 2016). Interaction among charcoal and potassium also significantly increased yield parameters.…”

Efficiency of nitrogen and potassium application on phytotechnical parameters and yield of melon

“…In sandy soils, with low cation exchange capacity (CEC), abundant presence of oxygen and not excessively acidic, as is the case of the Neossolo (Entisol) of this study, there is a predominance of nitrate (NO 3 -) in the soil solution and, under these conditions, K + adsorption is also reduced. Thus, applying high levels of N and K through irrigation water favors their leaching, resulting in a reduction in their use efficiencies (MENDES et al, 2016;SALIH et al, 2016;WANG et al, 2019).…”