Estimation of Critical Period for Weed Control in Soybean on Agro-forestry System with Kayu Putih

Suryanto, Priyono; Tohari,; Sulistyani, Endang; Putra, Eka Tarwaca Susila; Kastono, Dody; Alam, Taufan

doi:10.3923/ajcs.2017.82.91

Cited by 10 publications

(16 citation statements)

References 32 publications

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“…Similarly, in 2015, soybean yield was reduced by 23%, 19%, 10%, and 12% when weed establishment time was 0, 1, 2, and 4 WAE, respectively, compared with the yield obtained when weed establishment time was 8 WAE. It should be noted that late weed infestations (i.e., an 8-wk weed establishment time) rarely cause significant soybean yield losses (Bensch et al 2003; Keramati et al 2008; Suryanto et al 2017; Van Acker et al 1993). Highly significant relationships (R 2 =0.925 and 0.937 for 2014 and 2015, respectively) were revealed when rectangular hyperbolic relationships were fit between soybean yield and weed establishment time in relation to crop emergence (Table 1; Figure 9).…”

Section: Resultsmentioning

confidence: 99%

Effects of Palmer Amaranth (Amaranthus palmeri) Establishment Time and Distance from the Crop Row on Biological and Phenological Characteristics of the Weed: Implications on Soybean Yield

Korres¹,

Norsworthy²,

Mauromoustakos³

2019

Weed Sci

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Information about weed biology and weed population dynamics is critical for the development of efficient weed management programs. A field experiment was conducted in Fayetteville, AR, during 2014 and 2015 to examine the effects of Palmer amaranth (Amaranthus palmeriS. Watson) establishment time in relation to soybean [Glycine max(L.) Merr.] emergence and the effects ofA. palmeridistance from the soybean row on the weed’s height, biomass, seed production, and flowering time and on soybean yield. The establishment time factor, in weeks after crop emergence (WAE), was composed of six treatment levels (0, 1, 2, 4, 6, and 8 WAE), whereas the distance from the crop consisted of three treatment levels (0, 24, and 48 cm). Differences inA. palmeribiomass and seed production averaged across distance from the crop were found at 0 and 1 WAE in both years. Establishment time had a significant effect onA. palmeriseed production through greater biomass production and height increases at earlier dates.Amaranthus palmerithat was established with the crop (0 WAE) overtopped soybean at about 7 and 10 WAE in 2014 and 2015, respectively. Distance from the crop affectedA. palmeriheight, biomass, and seed production. The greater the distance from the crop, the higherA. palmeriheight, biomass, and seed production at 0 and 1 WAE compared with other dates (i.e., 2, 4, 6, and 8 WAE).Amaranthus palmeriestablishment time had a significant impact on soybean yield, but distance from the crop did not. The earlierA. palmeriinterfered with soybean (0 and 1 WAE), the greater the crop yield reduction; after that period no significant yield reductions were recorded compared with the rest of the weed establishment times. Knowledge ofA. palmeriresponse, especially at early stages of its life cycle, is important for designing efficient weed management strategies and cropping systems that can enhance crop competitiveness. Control ofA. palmeriwithin the first week after crop emergence or reduced distance between crop and weed are important factors for an effective implementation of weed management measures againstA. palmeriand reduced soybean yield losses due to weed interference.

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Section: Resultsmentioning

confidence: 99%

Effects of Palmer Amaranth (Amaranthus palmeri) Establishment Time and Distance from the Crop Row on Biological and Phenological Characteristics of the Weed: Implications on Soybean Yield

Korres¹,

Norsworthy²,

Mauromoustakos³

2019

Weed Sci

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“…The observation in this experiment was carried out based on the nitrate reductase activity (NRA) (Krywult and Bielec, 2013), total chlorophyll (TC) (Gross, 1991), leaf photosynthesis rate (LPR) (Li-Cor Bioscience Inc., 1999), nitrogen loss (NL) (Horwitz and Latimer, 2005;Jarvis et al, 2011;Fageria, 2014), nitrogen use efficiency (NUE) (Rathke et al, 2006), and seed yield (SY) per hectare. Soybean seeds were dried under the sunlight to reach 11 % of moisture level (Suryanto et al, 2017).…”

Section: Soybean Variablesmentioning

confidence: 99%

Optimizing application of biochar, compost and nitrogen fertilizer in soybean intercropping with kayu putih ( Melaleuca cajuputi )

Alam¹,

Suryanto²,

Handayani³

et al. 2020

Revista Brasileira De Ciência Do Solo

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Waste resulted from the distillation of kayu putih leaves is a problem in almost all kayu putih refineries throughout Indonesia due to its enormous availability and un-utilization. It has potential to be used as an organic fertilizer source due to its nutrient content (macro and micro) which is higher than organic fertilizer from animals. The use of kayu putih waste is useful to complement and increase the efficiency of nitrogen fertilizer in soybean intercropping with kayu putih. This study aimed to determine the optimum values of kayu putih waste and nitrogen fertilizer based on three scenarios: economic, environmental, and eco-environmental. A two-year experiment (2018-2019) was carried out in a central composite design (CCD) with two replications as the response surface methodology (RSM) at the Menggoran Forest Resort, Playen District, Yogyakarta Forest Management, Indonesia. The treatments consist of biochar and compost levels made from kayu putih waste (0, 2.5, and 5.0 t ha-1) and nitrogen fertilizer levels supplied by ammonium sulfate (0, 50, and 100 kg ha-1) as independent variables. The observations conducted on nitrate reductase activity (NRA), total chlorophyll (TC), leaf photosynthesis rate (LPR), nitrogen loss (NL), nitrogen use efficiency (NUE), and seed yield (SY). The response variables were fitted in a full quadratic polynomial model. The results showed that the resource-based on the eco-environmental scenarios was the most favorable cropping strategy for the soybean production intercropping with kayu putih with the optimum value of 2.890 t ha-1 of biochar, 2.27 t ha-1 of compost, and 67.85 kg ha-1 of ammonium sulfate. This recommendation can reduce the use of ammonium sulfate by 32.

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“…The observed of soybean parameters were nitrogen, phosphorus, potassium content in the leaf tissue (NC, PC, KC) (ACIAR 1990; Association Official Agriculture Chemists 2000; Jones 1984), total chlorophyll (TC) (Gross 1991), proline content (PRO) (Bates et al 1973), leaf photosynthesis rates (LPR) (Li-Cor 1999), and soybean seed yield per hectare (SY). Soybean seeds were dried under the sunlight to reach 11% of moisture level (Suryanto et al 2017b).…”

Section: Soybean Variablesmentioning

confidence: 99%

Influence of siam weed compost on soybean varieties in an agroforestry system with kayu putih (Melaleuca cajuputi)

et al. 2020

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Abstract. Suryanto P, Faridah E, Nurjanto HH, Supriyanta, Kastono D, Putra ETS, Handayani S, Dewi AK, Alam T. 2020. Influence of siam weed compost on soybean varieties in an agroforestry system with kayu putih (Melaleuca cajuputi). Biodiversitas 21: 3062-3069. Siam weed (Chromolaena odorata (L.) R.M.King & H.Rob.) has grown wild in many kayu putih (Melaleuca cajuputi Powell) forest can be utilized as compost for complementary of inorganic fertilizers in annual crops. The experiment was conducted during November-February 2020 in Menggoran Forest Resort, Playen Forest Section, Yogyakarta Forest Management District, Indonesia. The experiment was arranged in a randomized complete block design (RCBD) with three replications. The first factor was soybean varieties consisted of Anjasmoro, Dering I, and Grobogan. The second factor was siam weed compost (SWC) application consisted of 0, 5, 10, and 15 tons ha-1. The data were analyzed using Two-way ANOVA, ANCOVA, and stepwise regression. The SWC application of 10 tons ha-1 showed the highest yield of Anjasmoro, Dering I, and Grobogan were 1.42, 1.56, and 1.51 tons ha-1, respectively, or increased by118.46%, 102.60%, and 112.68%, respectively, compared to the without SWC application. The optimum dosage of SWC application for Anjasmoro, Dering I, and Grobogan were 13.05, 14.35, and 14.93 tons ha-1, respectively, with a maximum yield of 1.45, 1.59, and 1.52 tons ha-1, respectively. Soil quality and physiological parameters that had a significant influenced on the production of soybean varieties in agroforestry systems with M. cajuputi were SOM, K, LPR, TC, and PRO.

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Estimation of Critical Period for Weed Control in Soybean on Agro-forestry System with Kayu Putih

Cited by 10 publications

References 32 publications

Effects of Palmer Amaranth (Amaranthus palmeri) Establishment Time and Distance from the Crop Row on Biological and Phenological Characteristics of the Weed: Implications on Soybean Yield

Effects of Palmer Amaranth (Amaranthus palmeri) Establishment Time and Distance from the Crop Row on Biological and Phenological Characteristics of the Weed: Implications on Soybean Yield

Optimizing application of biochar, compost and nitrogen fertilizer in soybean intercropping with kayu putih ( Melaleuca cajuputi )

Influence of siam weed compost on soybean varieties in an agroforestry system with kayu putih (Melaleuca cajuputi)

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