Pattern of N Mineralization and Nutrient Uptake of Tithonia diversifolia and Saccharum officinarum Leaves in Sandy Loam Soil

Abstract

Background: This study aimed to determine the pattern of N mineralization of tithonia (Tithonia diversifolia) and sugarcane (Saccharum officinarum) leaves and assess the uptake of N nutrients in maize by giving T. diversifolia and S. officinarum leaves with different qualities on sandy loam soil. Methods: The research used a completely randomized design (CRD) with following treatment: T1 (100% T. diversifolia), T2 (100% S. officinarum), T3 (75% T. diversifolia: 25% S. officinarum), T4 (50% S. officinarum: 50% T. diversifolia), T5 (25% T. diversifolia leaves: 75% S. officinarum), T6 (without T. diversifolia and S. officinarum or control). Result: The results showed that the N mineralization pattern of the organic matter combination was significantly higher than the control for all observations. The amount of N mineral released in each treatment was T1 (54.58-529.7 mg/kg), T2 (41.80-381 mg/kg), T3 (47.69-473.6 mg/kg), T4 (46.70-424.0 mg/kg), T5 (70.69-378.9 mg/kg) and T6 (47.14-303.6 9 mg/kg). The sequence of cumulative N release during 12 weeks of incubation was T1 (529 mg/kg) greater than T3 (573.6 mg/kg) greater than T4 (424.0 mg/kg) greater than T2 (381 mg/kg) greater than T5 (378.9 mg/kg) greater than T6 (303.6 mg/kg). These results suggested that T. diversifolia and S. officinarum leaves significantly increased N nutrient uptake in maize by 125% to 144.54%.

Utilization of Tithonia diversifolia and sugarcane leaves to improve soil properties and plant growth on a sandy soil of Malang, East Java

“…The high uptake of K in the T1 treatment was related to the K nutrient content in T1 (3.62%), which was higher than the other treatments (Table 1). In addition to P and K nutrient uptake, Tithonia diversifolia treatment also increased N uptake in maize, in which N nutrient uptake with Tithonia diversifolia and its combination with sugarcane leaves was able to increase N uptake by 125,98 % to 144.54% (Farni et al, 2021 ). Farni et al (2021) reported that the highest cumulative N release was found in T1 treatment (517.15 mg plant -1 ).…”

“…In addition to P and K nutrient uptake, Tithonia diversifolia treatment also increased N uptake in maize, in which N nutrient uptake with Tithonia diversifolia and its combination with sugarcane leaves was able to increase N uptake by 125,98 % to 144.54% (Farni et al, 2021 ). Farni et al (2021) reported that the highest cumulative N release was found in T1 treatment (517.15 mg plant -1 ). The high nutrient uptake in 100% tithonia leaves and its combination with sugarcane leaves was due to high N content and low C/N ratio of tithonia leaves (Table 1) so that the decomposition and nutrient release rates were high (Li et al, 2011;Kaleeem Abbasi et al, 2015;Wang et al, 2017).…”

“…Land use in this area is for the cultivation of seasonal crops and plantation crops (Rokhmawati, 2014). The decline in agricultural productivity in Bambang Village is caused by low organic matter, low nutrient content of N, P, K and sandy loam textured soil, chemical and physical characteristics of soil in Bambang Village, Wajak District, Malang, East Java reported in (Farni et al, 2021). Low water and nutrient retention capacity in sandy soils cause nutrients to be easily lost, especially N, through leaching (Bharwaj et al, 2007).…”

Effect of Mineral and Organic Nitrogen Sources on Vegetative Development, Nutrition, and Yield of Sugarcane

“…Alternatively, plants subjected to ON reached average heights of 3.09 m at the dose of 5.6 T ha −1 in crop season 1 (2019/2020). This yield is directly due to the mineralization of these organic residues, which makes N available to the soil and contributes to the improvement of biometric parameters [21,22,36,37].…”