A Study of Light Intensity and Fertilizer on Soybean in Albizia chinensis Agroforestry System

Affandi, Zulfikar; Purnomo, Djoko; Supriyono, Supriyono

doi:10.20961/stjssa.v16i1.25872

Cited by 5 publications

(5 citation statements)

References 13 publications

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“…Planting pattern is closely related to the sengon growth (Dendang and Sudorno 2020). Besides the upland rice plant, there were several studies of food-producing plants cultivated under the sengon stand, such as soybean (Affandi et al 2019), turmeric (Purnomo et al 2018), and peanut (Sarminah et al 2018;Susanto et al 2021). In this study, the agroforestry of sengon and rice plant impacted sengon growth because the macronutrients initially aimed to fertilize rice plant were indirectly absorbed by the sengon trees.…”

Section: Effects Of Sengon Types and Spacing On Canopy Areamentioning

confidence: 99%

Growth of three types of sengon (Paraserianthes spp.) in varying planting spaces in agroforestry system

2021

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Abstract. Sopacua F, Wijayanto N, Wirnas D. 2021. Growth of three types of sengon (Paraserianthes spp.) in varying planting spaces in agroforestry system. Biodiversitas 22: 4423-4430. Sengon (Paraserianthes spp.) is a fast-growing tree species that is commonly cultivated in the agroforestry system by communities in Indonesia, mainly on Java Island. Among several types of sengon, Solomon sengon is currently gaining popularity due to the fast growth in height and stem diameter. Nonetheless, the spacing layout of selected sengon types is unclear, including Solomon sengon, which yields more optimal growth. This study aimed to examine the growth of three sengon types (i.e., Solomon F2, Solomon F1, and local Kendal) in three spacing patterns, namely 1.5x1.5m, 3x1.5m, and 3x3m. This research was conducted from October 2019 to January 2020 (three months) in the Cikabayan Forest, Bogor Agricultural University, Bogor, West Java. The parameters of sengon growth observed were plant height, height growth rate, stem diameter, stem diameter growth rate, tree volume, and canopy area. Data analysis was performed using ANOVA and continued with Duncan's. The results showed that all types of sengon had optimal growth in the agroforestry system at various spacings. The growth of Solomon F2 adapted well to denser spacings (1.5x1.5m and 1.5x3m) with the highest averages in plant height, stem diameter, volume, and canopy area of ??10.50 m, 8.65 cm, 0.36 m3, and 5.39 m2. Local Kendal had optimal growth at a wider spacing (3x3m) with the highest average stem diameter, volume, and canopy area of ??8.96 cm, 0.043 m3, and 1063 m2. While Solomon F1 adapted well to the three spacings with the highest average in plant height, the growth rate of plant height, stem diameter, volume, and canopy area of ??10.05 m, 1.54 m, 8.59 cm, 0.042 m2, and 2075.30 m2. In general, it can be concluded that the Solomon F1 sengon can adapt well to narrow distances or wide distances. While Solomon F2 is more recommended to be planted at a narrower distance and Kendal local sengon is more recommended to be planted at a wider distance to get optimal growth.

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Section: Effects Of Sengon Types and Spacing On Canopy Areamentioning

confidence: 99%

Growth of three types of sengon (Paraserianthes spp.) in varying planting spaces in agroforestry system

2021

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“…Wide weed leaves can hinder the photosynthesis process of soybeans, because it reduces the intensity of sunlight. Soybean plants exposed to shade Albizia chinensis contained less chlorophyll and thinner leaves than plants without shade (Affandi et al, 2019).…”

Section: Amount Of Soybean Leavesmentioning

confidence: 94%

THE YIELD OF ANJASMORO CULTIVARS SOYBEAN [Glycine max (L.) Merrill] WITH COMPOST TREATMENT FROM TOBACCO OR SOURSOP LEAVES AND ITS WEED CONDITIONS

Sumarmi,

Triyono,

Sholihah

2023

Agric

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One of the important problems in soybean production is the weed growth. This study was conducted to observe the growth of weeds in the growth of soybean plants that are given compost. Anjasmoro soybean varieties were planted in Surakarta, on April 14, 2020. There are four types of treatment, namely given compost fertilizer made from tobacco leaves, soursop leaves, a mixture of tobacco leaves and soursop, and without fertilizer. Weeds were allowed to grow together with soybeans in 15 polybags, per treatment. Observation and identification of weeds were carried out twice, 4 weeks after planting and at harvest time. The results found 9 kinds of weeds consisting of 5 species of Monocots and 4 types of Dicotiles. The total wet weight of weeds was every treatment: 1,539 grams, while the wet weight of the soybean crop at harvest was 858.4 grams. Wet weed weight in the control treatment was 284,8 grams. The wet weight of weeds in soybean plants was the largest mixture fertilizer treatment that is 514,8 grams. The number of pods ranges from 17 to 26. The sum of seeds per soybean plant in giving mixed compost is at most 98 grains. Mixed fertilizer treatment can increase the yield of Anjasmoro soybean, although weed growth up.

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“…Thus, identifying the forest species that are most appropriate to compose an agroforestry system to produce a balance between the amount of solar radiation intercepted by the tree canopy and the amount transmitted downward. The application of the soybean agroforestry system with 1.5 years Albasia chinensis with different distances of light intensity ranging from 15,620-28,500 lux resulted in the highest soybean production (3.3 tons ha-1) can be achieved at a density of 2850 trees ha-1 with a pruned crown ( RTF: 49% equivalent to 28440 lux) compared to biomass production in open land (3.9 tonnes ha-1) [42]. In Baity et al, [43] research, soybean cultivation with an agroforestry system was carried out in areas with critical hydrological conditions.…”

Section: Soybean In Agroforestry Systemmentioning

confidence: 99%

The role of soybean agroforestry in mitigating climate change in Indonesia

Purnomo

Budiastuti

Setyaningrum

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Climate change is a global problem that has an impact on food production. Protein needs for people in developing countries such as Indonesia have not been fulfilled optimally. Indonesian people’s protein consumption is still at 65.7%, much lower than it should be. The development of soybean cultivation as a source of vegetable protein is very potential. This article aims to examine the role of soybean agroforestry to meet human protein needs and as an effort to mitigate climate change.In Indonesia, soybean development is constrained by people’s views; soybean is not the main crop and the rate of land conversion. An effort to overcome the limitation of optimum land according to the growing season is the development of soybean cultivation under forest stands as an agroforestry system. In Indonesia, there are production forests, including teak, pine, sengon, and resin, especially in teak, pine, and sengon forests, soybean cultivation with agroforestry systems has developed. The main obstacle to cultivation in the agroforestry system is low light due to the shade of the tree canopy. It requires efforts: tree spacing, especially between rows, trimming the tree canopy when the canopy is getting tighter, and low light tolerant plant varieties. Soybeans are low-light tolerant plants. The national average soybean production of about 1.5 tons ha-1 can be achieved in teak-based agroforestry systems up to 3-4 years old tree, pine-based up to 3 years old, and sengon-based up to 5 years old. The agroforestry system has the potential as land for the cultivation of organic plants in mitigating the impacts of climate change.

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A Study of Light Intensity and Fertilizer on Soybean in Albizia chinensis Agroforestry System

Cited by 5 publications

References 13 publications

Growth of three types of sengon (Paraserianthes spp.) in varying planting spaces in agroforestry system

Growth of three types of sengon (Paraserianthes spp.) in varying planting spaces in agroforestry system

THE YIELD OF ANJASMORO CULTIVARS SOYBEAN [Glycine max (L.) Merrill] WITH COMPOST TREATMENT FROM TOBACCO OR SOURSOP LEAVES AND ITS WEED CONDITIONS

The role of soybean agroforestry in mitigating climate change in Indonesia

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