Application of Organic and Inorganic Fertilizers Affects the Growth and Biomass Semanggi (Marsilea crenata Presl.)

Abstract

Semanggi (Marsilea crenata Presl.) is one of the aquatic plants that have been widely used by the community as food and medicinal raw materials. One of the important factors in cultivating clover is optimal fertilizer management. The incorporation of organic and inorganic nutrients has an effect on soil fertility has been repeatedly demonstrated in several studies, but there are not specific guidelines on clover cultivation. The challenge now is to combine organic matter of different qualities with inorganic fertilizers to optimize nutrient availability for the clover plant. The results of research on clover cultivation have also not been widely carried out. Therefore, it is very important to do this research with the aim of knowing the optimal effect of organic (cow manure) and inorganic (nitrogen, potassium) fertilizers on the growth and yield of clover (Marsilea crenata Presl.). The research was conducted at the Screen House of the Faculty of Agriculture, Brawijaya University. The study was designed using a non-factorial randomized block design (RBD) with 8 (eight) treatment combinations of soil types and fertilization [inorganic (N, K) cow manure organic fertilizer (CM)], namely: P0 = soil, without fertilizer; P1 = soil, 138 kg N ha-1; P2 = soil, 136 kg K ha-1; P3 = soil, N and K, 138 and 136 kg ha-1; P4 = soil, 20x103kg of cow manure ha-1; P5 = soil, 20x103 kg of cow manure ha-1, 138 kg N ha-1; P6 = soil, 20x103 kg of cow manure ha-1, 136 kg K ha-1; P7 = soil, 20x103 kg of cow manure ha-1, N and K, 138 and 136 kg ha-1 with 3 replications, so that 24 experimental units were obtained. Each experimental unit consisted of 5 plants. Growth observations were observed destructively at the ages of 4, 8, 12, 16, 20, 24, 28, 32 days after planting (DAP). The results showed that there was an increase in the growth and yield of biomass in the soil combination, 20x103 kg of cow manure ha-1 (P4) was compared with the treatment without the addition of organic fertilizers (cow manure) on plant growth and yield parameters, such as stolon length (74.78 cm), number of leaves (160.44), leaf area (1379.28 cm2), root length (23.85 cm), stomata density and number of stomata (13.25); Stomata width (10.87 cm); Stomata length (19.76 cm), leaf fresh weight (12,907 g), leaf dry weight (1,802 g), total fresh weight 210,830 g, total dry weight 7,823 g, leaf harvest fresh weight (64.19 g); stalk (130.54 g); root (79.75 g); total 274.48 g), harvest dry weight of leaves (11.36 g); stalk (24.88 g); root (9.55 g); a total of 45.78 g) and the chlorophyll a content (0.804 mg.g-1); chlorophyll b (1.121mg.g-1); and total chlorophyll (1.924 mg.g-1).

Standardization of Semanggi (Marsilea crenata C. Presl.) Leaves from Benowo District, Surabaya for Standardized Herbal Raw Material

“…Alkaloid and terpenoid tests resulted in a color change on the drop plate, with positive results indicated by a white precipitate (with Mayer), a color change to blackish-green (with FeCl3), and a color change to green (with Liebermann-Burchard) (Salempa et al, 2019). Semanggi is known to have pharmacological effects in preventing osteoporosis due to its flavonoid and terpenoid compounds Tripatmasari et al, 2020). In addition, testing with alkaloids can also be detected as alkaloids can dissolve in organic solvents (Alfiani, 2022).…”

Cultivation Innovations of Growth Promoting Bacteria and the Characteristics of Several Vegetables

“…While in the chicken manure treatment, the most optimal dose was 10 t ha -1 which can produce eggplant fruit weight per plant of 531.56 g tan -1 and 12.66 t ha -1 total eggplant fruit weight per ha. Research by WANG et al [18], biochar combined with PGPR had positive effects on soil microbial community structure, soil enzyme activity, and soil N transformation. The tomato yield in the treatment with biochar combined with PGPR (UBP) was 32.45%, 45.69%, and 10.44% higher than those in the N without PGPR or biochar (U); N and PGPR without biochar (UP); N and biochar without PGPR (UB) treatments, respectively.…”