Analysis of productivity levels of saline coastal land for crop cultivation activities

Saline land is an area zone that is widely developed for agribusiness activities with high economic value. The purpose of this study is to determine the parameters that affect the level of productivity of saline land in coastal areas for agricultural agribusiness activities. The research methods used were descriptive quantitative and descriptive qualitative methods. The indicators observed were soil and water parameters on saline land. The results showed that soil parameters that are not following the quality standards of agricultural cultivation are N 0.12-0.14%, P2O5 14-57 mg/L, K2O 473-506 mg/L, Ca 0.47-1.27%, Mg 0.51-5.14%, Al 8.51-243%, and Na 0-0.37%. Water parameters that do not comply with agricultural cultivation quality standards are Ca 54.02-320.60 mg/L, Mg 78.22-424.94 mg/L, Na 582.31-3208.68 mg/L, PO4 0.11-0.72 mg/L. Y= 18.021+0.80X1+0.262X2+0.332X3+0.081X4+0.105X5+0.177X6+0.794X7 Is formula of soil regression test resulted. Meaning that parameters that do not meet soil quality standards will simultaneously affect the land productivity. The water regression model formula by Y= 7890+0.001X1+0.002X2+0.003X3+0.004X4, means that water quality parameters that do not comply with quality standards do not affect the level of land productivity. The results of the dynamic analysis estimate that the level of productivity and carrying capacity of land in saline coastal areas will decrease along with the increase in crop yields. Based on the study of modelling analysis, it can be concluded that there are several soil parameters such as N, P2O5, K2O, Ca, Mg, Al, and Na that affect the productivity level of saline land in coastal areas.