Response Land (Ipomoea reptans Poir) as a Result of Fertilizing NPK and Manure of Various Doses Under the Shade of Citrus Plants

Abstract

Organic fertilizers can improve soil fertility, but the availability of nutrients is generally low due to low nutrient content. So that the response of plants to organic fertilizers will be slower, because organic fertilizers are slow release. Therefore, it is necessary to add fast-release inorganic fertilizers such as Pearl NPK fertilizer to increase plant growth. This study aims to determine: (1) Get the right dose of NPK Mutiara 16-16-16 in increasing the growth and yield of land water spinach, (2) Get the right dose of cow manure to increase the growth and yield of land water spinach, (3) Obtain the interaction between the dose of NPK Mutiara 16-16-16 and the right cow manure in increasing the growth and yield of ground land water spinach plants. The results showed that: The application of NPK Mutiara at various doses showed that the increasing dose of NPK Mutiara fertilizer increased yields, this was clearly seen in the plant height and plant yield per plot with the application of NPK Mutiara at a dose of 300 kg/ha (m3). However, the dose of 20 tons/ha (p2) gave higher yields compared to the dose of 10 tons/ha (p1) in the variables fresh plant weight, fresh canopy weight, yield per plot, and marketable yield. There was no interaction between giving NPK Mutiara 16-16-16 and cow manure fertilizer.