Monitoring the changes in soil-available phosphorus and potassium in different fertilization managements under different crop rotations
Year: 2025
Type: article
Abstract: This research was conducted to study the effects of different soil fertility management scenarios include not planted, control without any fertilizer, application of P and K based on soil tests and application of Farmyard Manure (FYM) and Spent Mushroom Compost (SMC), on the status of soil-available phosphorus (P) and potassium (K) in eight consecutive crops at the Bakhtajerd Darab Agricultural Research Station from 2017 to 2021. The results showed that the amount of available P remained constant, in fertilizer application based on soil test treatment, probably due to the absence of a positive or negative balance. The integrated application of chemical and organic fertilizers significantly increased soil-available P compared with chemical fertilizers alone due to the high concentration of P in organic fertilizers. Depletion of K up to 11% was recorded in the control treatment due to the lack of use of K-containing fertilizers. By applying 20 t ha−1 of organic fertilizer every other year, the consumption of P and K fertilizers could be reduced by 50%. In general, it is concluded that the integrated application of organic and chemical fertilizers containing P and K helps in the sustainable management of these nutrients in the soil.
Source: Sustainable Environment
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDGs: Zero hunger, Life on land
Open Access status: diamond
OpenAlex ID: W4416937204