scholarly journals Response of rice grown in saline soil as influenced by the application of agricultural amendments and moisture regimes

Author(s):  
S Akter ◽  
HR Khan ◽  
MS Hossain ◽  
MK Saha ◽  
F Farzana

The experiment was carried out with rice (BRRI dhan48) grown in saline soil at the premises of the Department of Soil, Water and Environment, University of Dhaka to evaluate the impacts of agricultural amendments, such as rice hull (RH), rice straw (RS) and sawdust (SD) each applied at the rates of 0, 4 and 8 t ha-1 in moist (80% moisture) and saturated soil conditions. Most of the growth and yield components of rice were found to increase significantly (p ≤0.05) with the increased rates regardless of kinds of organic treatments under both the moisture levels. The tallest plant heights (99 cm in moist, 105 cm in saturated condition) were recorded at maturity stage of rice with the RH8RS8SD8treatment, which received the highest rates of these three organic amendments. The shortest plant heights (79 cm in moist; 86 cm in saturated conditions) were recorded in control pot (RH0RS0SD0), where no amendment was made. The maximum numbers of tillers were observed in RH8RS8SD8followed by RH8RS8SD4, RH8RS4SD8, RH4RS8SD8 and RH4RS4SD8 treatments at saturated condition. The straw dry matter and grain yields of rice were also found to vary significantly (p ≤0.05) by the individual application of rice hull, rice straw, sawdust and moisture conditions, but their combined effects were found to be highly significant at their higher doses of combination. The highest grain yield (4.4 t ha-1) was recorded in RH8RS8SD8 treatment followed by RH8RS8SD4 (4.2t ha-1) and RH8RS4SD8 (4.1t ha-1) at saturated condition. Harvest index and 1000 grain weight of the rice were attained positive under both the moisture conditions, but at saturated condition of the soil, the amendments (RH, RS and SD) produced better response for these components compared to those of the moist soil condition. J. Biodivers. Conserv. Bioresour. Manag. 2018, 4(2): 33-42

2017 ◽  
Vol 43 (2) ◽  
pp. 197-206
Author(s):  
Suma Akter ◽  
Md Harunor Rashid Khan ◽  
Mohammed Sadid Hossain

A field trial was carried out with rice (BRRI 64) grown in saline soil at Kuakata of Patuakhali District to evaluate the potential of rice straw, rice hull and saw dust each applied at the rates of 0, 4, 8 t ha-1 in moist and saturated conditions. Growth parameters and yield of rice were found to increase significantly (p ≤ 0.05) with the increased rates regardless of kinds of organic treatments under both the conditions. The highest plant heights (89 cm in moist and 101 cm in saturated condition) were recorded at maturity in the treatment, which received the combination (RH8RS8SD8) of highest rates of these 3 organic amendments. The lowest plant heights (73 cm in moist and 77 cm in saturated) were recorded in control condition (RH0RS0SD0). The maximum numbers of tillers were observed in RH8RS8SD8 and RH8RS4SD8 followed by RH8RS8SD4, RH8RS4SD4 and RH4RS8SD8 treatments at saturated condition. The straw dry matter and grain yields of rice were also found to vary significantly (p ≤ 0.05) due to single application of rice hull, rice straw, saw dust and moisture conditions but their combined effects were found to be significantly better at the higher levels. The highest grain yield (6.6 t ha-1) was recorded in RH8RS8SD8 treatment followed by RH8RS8SD4, RH8RS4SD8, RH8RS4SD4 and RH4RS8SD8 at saturated condition. Growth and yield of rice were attained better at saturated condition than that of the moist soil. Asiat. Soc. Bangladesh, Sci. 43(2): 197-206, December 2017


2018 ◽  
Vol 30 (1-2) ◽  
pp. 11-21
Author(s):  
Suma Akter ◽  
Md Harunor Rashid Khan ◽  
Mohammed Sadid Hossain

The study was conducted at Kuakata of Patuakhali to evaluate the impacts of indigenous organic amendments such as rice hull, rice straw and saw dust alone and in combination under variable moisture conditions (moist and saturated) on the primary nutrients (N, P and K) of BRRI dhan64 grown in a coastal saline soil. The individual application of rice hull, rice straw and saw dust at the rate of 0, 4 and 8 t/ha and their combined effects were found to be significant (p ≤ 0.05) for N content in the rice plants. Effects of the treatments on phosphorus content alone and in combination were slightly additive but not significant. The maximum P content in the plant tissues was determined at saturated condition with the increased rate of the treatments (T27 = RH8RS8SD8), while the lowest content of P was recorded in control (T1 = RH0 RS0 SD0). The K content in plant tissues increased significantly (p ≤ 0.05) with the increased rate of application of rice hull, rice straw and saw dust. The higher K contents were found under saturated condition of soil. Under moist condition of soil, the highest contents of N, P and K were 21.3, 1.45 and 15.67 g/kg, respectively and under saturated condition, the highest contents of N, P and K were 23.4, 1.78 and 15.87 g/kg by the combined application of rice hull, rice straw and saw dust, respectively at the rate of 8 t/ha, suggested that the primary nutrition of rice had better response under saturated moisture condition in saline soil, which received rice hull, rice straw and saw dust.Bangladesh J. Sci. Res. 30(1&2): 11-21, December-2017


2018 ◽  
Vol 53 (4) ◽  
pp. 297-304
Author(s):  
MS Hossain ◽  
HR Khan ◽  
S Akter

The potential and effectiveness of the indigenous organic amendments such as rice hull (RH), rice straw (RS) and sawdust (SD) at the rates of 0, 2 and 4 t ha-1, respectively on N, P and K contents of BRRI Dhan-47 grown on saline soil under variable moisture (field moist: FM and 2-5 cm standing water: SW) levels were evaluated in the field experiment. The N, P and K contents in the shoot at maturity stage of rice increased significantly (p<0.05) by the individual and the combined application of these amendments. The maximum contents of N (26.7 g kg-1: FM and 25.7 g kg-1: SW) were attained by the T27 (RH4SD4RS4) followed by the T26 (RH4SD4RS2) treatments. Among the three types of amendments regardless of their doses, the application of RS exerted best response (16.75 g N kg-1) followed by SD (16.35 g N kg-1) and RH (16.04 g N kg-1) in increasing N content of rice plants at field moist condition of the soil. The maximum P contents (2.49 g kg-1: FM and 2.67 g kg-1: SW) were recorded by the T27 (RH4SD4RS4) followed by the T26 (RH4SD4RS2) treatments and the lowest contents of P (0.40 g kg-1: FM and 0.42 g kg-1: SW) were obtained from the control plots. The content of P in rice shoots was slightly higher in SW than that of FM conditions. The maximum contents of K (18.2 g kg-1 in FM and 15.8 g kg-1 in SW) were obtained by the application of RH4SD4RS4 (T27) followed by the RH4SD4RS2 (T26) and the lowest contents of K (2.8 g kg-1: FM; 2.7 g kg-1: SW) were determined in the control plots. The contents of N and K in rice shoots were slightly higher in the FM than those of the SW conditions regardless of these amendments.Bangladesh J. Sci. Ind. Res.53(4), 297-304, 2018


2018 ◽  
Vol 44 (2) ◽  
pp. 173-183
Author(s):  
Mohammed Sadid Hossain ◽  
Md Harunor Rashid Khan ◽  
Suma Akter ◽  
Mithun Kumar Saha ◽  
Fariha Farzana

A pot experiment was conducted using BRRI Hybrid Dhan-6 variety of rice at the premises of the Department of Soil, Water and Environment, University of Dhaka, Bangladesh to evaluate the capabilities of rice hull (RH: 0, 2, 4 t ha-1) and pistia (PT: 0, 400, 800 kg ha-1) for the improvement of growth performances of rice grown under field moist (FM: 70% moisture) and 2 - 5 cm standing water (SW) conditions in saline soil. Among the vegetative growth, the plant heights, number of productive tillers, fresh shoot and shoot dry matter weights were found to be increased significantly (p ≤ 0.05) with the increased rates of rice hull and pistia treatments, and the increments were more striking by their combinations in most of the cases under both FM and SW conditions. The tallest plant heights (112 cm in FM and 120 cm in SW) and the maximum number of productive tillers (13 in FM and 16 in SW) were recorded at maturity stage of rice in the T8 (RH4PT8) treatment where rice hull and pistia were applied at the highest (RH: 4 t ha-1, PT: 800 kg ha-1) dosages. Based on superiority in both the plant heights and number of tillers, the amendments can be arranged in the sequence of T8 > T7> T6> T5> T2> T3>T4> T0 > T1. The analysis of variance on these data indicated that in the standing water condition, fresh shoot and shoot dry matter weights of rice plants were found to be increased significantly (p ≤ 0.05) by the application of the higher rates of the treatments and their combinations. Thus, the application of indigenous organic amendments such as, rice hull and pistia showed significant contribution for the growth performances of rice under variable moistures but further researches are needed under variable soil and climatic conditions to ensure food security under saline soil. Asiat. Soc. Bangladesh, Sci. 44(2): 173-183, December 2018


Agriculture ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 272
Author(s):  
Rosalina Armando Tamele ◽  
Hideto Ueno ◽  
Yo Toma ◽  
Nobuki Morita

The rising cost of inorganic fertilizers, coupled with their adverse effects on soil conditions, has resulted in increasing interest in organic amendments. The objective of the present study was to evaluate the effect of organic amendments (OAs) with different C/N ratios on nitrogen use efficiency (NUE) and recovery rate, as well as on the growth and yield of Zea mays and soil properties. A precise pot experiment was conducted on a low-fertile, sandy-loam soil, and the dynamics of nitrogen (N) were also analyzed by the A-value method, using 15N tracer. The plant height of the treatment groups decreased in the following order: inorganic fertilizer (IF) = rapeseed waste (RW) > chicken manure (CnM) > bamboo tealeaf (BTL) > cow manure (CwM) > bamboo compost (BC). Furthermore, the maize fertilized with RW only took up half of the N in IF, despite producing the same yield, which indicates that the physiological nitrogen efficiency (PUE) of RW was twice as high as that of IF. RW and CnM were regarded as valuable fertilizers that could be used to replace inorganic fertilizers. A linear relationship between the N mineralization of the OAs was obtained by an incubation test and the pot experiments, estimating the effect of OA application on the maize. Maize plants mainly absorbed N derived from fertilizers; however, for the both sources of N (fertilizer and soil), N was mainly accumulated in grains followed by the leaves, stem, and root, suggesting that studies should be conducted to improve soil N use efficiency.


2017 ◽  
Vol 21 (3) ◽  
pp. 141-151
Author(s):  
. Asmarhansyah

An abandoned land after tin-mining activities are degraded lands with undulating and destructed land scape and low soil fertility status. The objective of this study was to determine the effects of organic amendments on the soil properties, growth, and grain yield of corn (Zea mays L.) on abandoned tin-mining areas in Bangka Island, Bangka Belitung Archipelago. The field experiment was conducted at the abandoned tin-mining areas in Cambai Village, Bangka Belitung Archipelago. Five treatments of organic amendments were applied and replicated three times and laid out in a Randomized Completely Block Design. All treatments were applied with the recommended rate fertilizer of 135 kg N ha-1, 72 kg P2O5 ha-1, and 120 kg K2O ha-1.  The treatments were T1= 20 Mg chicken manure ha-1;T2= 20 Mg cattle manure ha-1; T3= 20 Mg rice straw compost ha-1; T4 : 10 Mg of chicken manure ha-1 + 10 Mg rice straw compost ha-1; and T5= 10 Mg cattlemanure ha-1 + 10 Mg rice straw compost  ha-1. Application of organic amendments (chicken manure, cattle manure, and rice straw compost) on abandoned tin-mining land improved soil fertility due to the increasing of soil pH and nutrient availability, especially available-P and -K, and exchangeable bases. Application of chicken manure and cattle manure were significantly better than rice straw compost to improving soil fertility, nutrient uptake, growth and yield of maize. Application of cattle manure gave the highest yield of maize, namely 6.24 Mg ha-1.


Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 855
Author(s):  
Wael M. Semida ◽  
Taia A. Abd El-Mageed ◽  
Abdelsattar Abdelkhalik ◽  
Khaulood A. Hemida ◽  
Hamdi A. Abdurrahman ◽  
...  

Selenium (Se) has been recently reported to play a crucial role in ameliorating the negative impact of abiotic stress, including salinity, on several plant species. Two field experiments (2016/17 and 2017/18) were carried out to investigate the possible effect of exogenous Se application at two levels (25, 50 mg L−1) on growth, bulb yield, physio-biochemical attributes, and antioxidant activities of onion grown under saline (5.25 dS m−1) soil condition. Se (25 or 50 mg L−1) foliar application enhanced growth characteristics, as well as membrane stability index (MSI) and relative water content (RWC) as a result of the osmotic adjustment by accumulating more osmoprotectants and enhancing the activity of antioxidants defense system, thus improving photosynthetic efficiency and bulb yield. Proline, glycine betaine, choline, and total soluble sugars content were higher in leaves and bulbs of Se-treated plants under salt stress. Se (25 or 50 mg L−1) significantly increased the activities of enzymatic (ascorbate peroxidase, superoxide dismutase, and catalase) and non-enzymatic (ascorbic acid and glutathione) antioxidants in both leaves and bulbs of salt-stressed onion. Se application at 25–50 mg L−1 may find, in the future, a potential application as anti-abiotic stresses for improving plant growth and productivity under saline soil condition.


2020 ◽  
Vol 8 (6) ◽  
pp. 3101-3108

The research on plant growth estimation of sugarcane plants is a key factor ongoing now days. The problem of plant growth and yield estimation of sugarcane plants is well studied. There are number of solutions recommended by different researchers, still they suffer with poor accuracy. Existing methods measure the plant growth according to the rainfall and temperature which introduces poor performance. To improve the performance, an efficient Climate Hydro Image Soil Model (CHISM) is presented. The model considers various properties namely climate conditions like temperature, humidity and hydrologic features namely rainfall, water poured and soil conditions towards plant growth. The method uses the satellite images in obtaining the soil condition, by applying image processing technique, the soil condition are obtained. Remaining features are obtained through the regional data set provided by agriculture sector. Using all these features, the method estimates various influence measure on different features considered. The method computes rainfall influence measure (RIM), water influence measure (WIM), temperature influence measure (TIM), humidity influence measure (HIM), and soil influence measure (SIM). Using all these measure, the model computes the plant growth rate (PGR) and Yield Rate (YR) in different time window. According to the measures estimated, the model performs water regulation. The method improves the performance of plant growth estimation and crop yield.


Author(s):  
Badhon Ahmmed ◽  
Tamzid Bin Shafique ◽  
Shaikh Motasim Billah

For agriculture, the most important is the soil’s function as a base and medium for plant growth. The soil health and soil condition are important for plant growth. And the management of soil organic matter is an important part in case of managing soil health and maintaining soil conditions. The experiment was carried out in the field lab (Net House) of Soil, Water and Environment discipline, Khulna University, Bangladesh. Total 21 plastic pots were used to continue the experiment with 7 treatments. For the experiment, the meat bones were collected and used in the experimental pot along with soil in different doses. This research has revealed that meat bones both powdered and composted, has significantly increased (about 20-25%) the growth parameters of water spinach (Ipomoea aquatica) such as a number of leaves, shoot length, fresh weight, dry weight and moisture content. So, the application of powdered and composted meat bones in soil will contribute in the growth of water spinach (Ipomoea aquatica).


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