Effect of irrigation sources and nutrient management on arsenic accumulation in vegetable pea (Pisum Sativum L.) in deltaic West Bengal, India

2015 ◽  
Vol 38 (5) ◽  
Author(s):  
S. Mondal ◽  
P. Bandopadhyay ◽  
R. Kundu

An experiment was conducted at Nonaghata-Uttarpara village under Haringhata block in Nadia district during successive <italic>rab</italic><italic>i</italic> seasons of 2007-08 and 2008-09 to study the arsenic contamination in vegetable pea cv. Karishma and to explore possibilities of offloading the accumulation through nutrient management using harvested surface water for irrigation. The experiment has been laid out with two irrigation sources in main plot I<sub>1</sub>: irrigation from Shallow Tube Well (STW) and I<sub>2</sub>: irrigation from Pond Water (PW) and four nutrient management options in sub-plot [N<sub>1</sub>: 100% RDF (60-80-90 kg ha<sup>−1</sup> N, P<sub>2</sub>O<sub>5</sub> and K<sub>2</sub>O), N<sub>2</sub>: 100% RDF with double the recommended dose of phosphate, N<sub>3</sub>: 75% RDF + FYM @ 10 t ha<sup>−1</sup>, N<sub>4</sub>: 75% RDF + FYM @ 10 t ha<sup>−1</sup> with double dose of phosphate] in a split plot design, replicated three times. Results revealed that pod yield did not significantly vary with different irrigation sources, but arsenic accumulation and uptake was the lowest with irrigation from harvested rain water i.e. pond water. 75% RDF + 10 t ha<sup>−1</sup> of FYM with increased phosphate recorded the maximum yield with the least arsenic accumulation (N<sub>4</sub>).

2017 ◽  
Vol 14 (2) ◽  
pp. 77-85
Author(s):  
Md Sohel Mahmud ◽  
Md Jafar Ullah ◽  
Md Abdullahil Baque ◽  
Lutfun Naher ◽  
Sayed Mohammad Mohsin

The experiment was conducted to determine the effect of irrigations and sowing dates on growth and yield performance of wheat in the experimental field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period of November 18, 2012 to March 30, 2013. The experiment was comprised of two factors, viz. factor A: two irrigations namely irrigation (I) and no irrigation i.e. control (I0), and factor B: three sowing dates such as S1: 1st sowing on 18 November, S2: 2nd sowing on 03 December and S3: 3rd sowing on 18 December. The experiment was laid out in a split plot design with three replications. Irrigation was assigned in the main plot, while sowing time was in the sub-plots. Data on grain yield and different yield contributing characters were taken after harvest. Results indicated that the highest grain yield was obtained with I (2.915 t ha-1) and S1 (2.983 t ha-1). The interaction of irrigation (I) and sowing on 18 November (S1) showed the maximum yield (3.387t ha-1), spike length (17.08 cm), 1000 grain weight (43.4 g), spikelets spike-1 (20.03) and grain spike-1 (65.58) of wheat.The Agriculturists 2016; 14(2) 77-85


2020 ◽  
Vol 11 (6) ◽  
pp. 585-589
Author(s):  
Imnatemjen Aier ◽  
◽  
D. Nongmaithem ◽  

A field experiment was conducted in the Experimental Research Farm of School of Agricultural Sciences and Rural Development (SASRD), Nagaland University during the kharif season 2018. Groundnut variety ICGS-76 was sown @ 70 kg ha-1 for 60×20 cm2 spacing. The experiment was laid in split plot design with three replications. The main plot treatments consisted of two lime levels: lime @ 0 t ha-1 and lime @ 3 t ha-1 while the sub- plot treatments consisted of five sulphur levels: sulphur @ (0 kg ha-1, 10 kg ha-1, 20 kg ha-1, 30 kg ha-1 and 40 kg ha-1 along with recommended dose of fertilizer at 20:60:40 kg N, P2O5 and K2O ha-1 respectively in the form of diammonium phosphate and murate of potash. The results showed that application of lime @ 3 t ha-1 gave higher growth and yield attributes compared to no lime and also application of sulphur @ 40 kg ha-1 gave higher growth and yield attributes compared to lower doses of sulphur though there was only slight increase in the attributes between each successive doses of sulphur. Overall application of lime and sulphur increased all the yield attributes of groundnut, where the highest number of pods plant-1, seeds pod-1, 100 kernels weight, pod yield, kernel yield and stover yield were recorded when treatment was done with lime @ 3 t ha1 and sulphur @ 40 kg ha-1.


Author(s):  
Biman De ◽  
Subhendu Bandyopadhyay ◽  
Ashok Choudhury

Light textured acid soil with conventional culture of growing crops faces poor germination due low moisture retention with infrequently quandaries like restricted activity of salutary soil micro-organisms and ultimately poor yield. To combat these soil health problems and to ameliorate the overall productivity of northern Bengal region an experiment was done at Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, with split-split plot design having two main-plot and two subplot mulching treatments and four sub-sub plot nutrient management treatments. The observations with conservation techniques on three year studies overcome the quandaries and showed positive cognation between soil moisture and germination. Difficulty with establishment of maize and reduced yield was additionally solved with soil health benefits.


2000 ◽  
Vol 48 (3) ◽  
pp. 263-269
Author(s):  
K. Rajendran ◽  
A. C. Lourduraj

Field experiments were conducted at Tamil Nadu Agricultural University, Coimbatore, India during the summer (January – April) and kharif (June – September) seasons of 1994 and 1995 in a split plot design. The main plot consisted of three levels of irrigation, with irrigation water/cumulative pan evaporation (IW/CPE) ratios of 0.40, 0.60 and 0.80, and three levels of plant population (0.33, 0.44 and 0.66 million plants ha –1). The subplot treatments consisted of three levels of phosphorus (80, 100 and 120 kg P2O5 ha –1). The results revealed that irrigation at IW/CPE 0.80 with a plant population of 0.66 million plants ha –1 and a P level of 100 kg P2O5 ha –1 is promising in obtaining maximum yield in soybean. Under an irrigation regime of IW/CPE 0.80, the total water consumption varied from 450 to 533 mm, while it varied from 350 to 438 mm at IW/CPE 0.60 and from 250 to 393 mm at IW/CPE 0.40.


2020 ◽  
Vol 22 (1) ◽  
pp. 27-37
Author(s):  
D Chowdhury ◽  
M Biswas ◽  
MNH Miah ◽  
P Mandal ◽  
MS Hossain

Hybrid rice production can ensure to get more yields per unit land. The research work was carried out to evaluate the effect of number of seedling hill-1 and spacing on the growth and yield of hybrid rice line Bio-453. The experiment was laid out in a split-plot design with 3 replications at the field of Agronomy and Haor Agriculture Department of Sylhet Agricultural University, under the AEZ 20 in Kharif-II (Aman) season of 2013. Number of seedling hill-1 was assigned in the main plot and plant spacing in the sub-plot. Two levels of seedling hill-1 viz. NS1 (1 seedling hill-1) and NS2 (2 seedlings hill-1) and five levels of plant spacing viz. Sp1 (15 cm  X 15 cm), Sp2 (15 cm X 20 cm) and Sp3 (20 cm X 20 cm), Sp4 (20 cm X 25 cm) and Sp5 (20 cm X 30 cm) were the treatments. Number of seedling hill-1 and plant spacing showed significant effect in yield and yield contributing parameters except days to maturity, plant height, 1000-grain weight, total tillers hill-1, number of effective tillers hill-1, harvest index and grains panicle-1. Maximum grain yield (9.43 t ha-1), straw yield (16.27 t ha-1) and biological yield (25.70 t ha-1) were obtained from 1 seedling hill-1 (NS1) with the closest spacing 15 cm X 15 cm Therefore,  one seedling hill-1 with 15 cm distance for plant and row to row distance could  ensure maximum yield of hybrid rice line Bio-453. Bangladesh Agron. J. 2019, 22(1): 27-37


2016 ◽  
Vol 39 (1) ◽  
Author(s):  
A. Sengupta ◽  
S. K. Gunri ◽  
T. K. Basu

To study the effect of nutrient management strategy on production potentiality of short duration high yielding summer irrigated groundnut variety TG 51, field experiments were conducted during summer seasons of 2011 and 2012 at Bidhan Chandra Krishi Viswavidyalaya, West Bengal. Results revealed that, application of 100 % RDF + 7.5 t/ha FYM as basal increased growth and yield attributes that led to significantly higher productivity (pod yield 3320 kg/ha) besides enrichment of soil available nutrients after harvest of the crop. Pod yield decreased with further increase in NPK fertilizer above 100% RDF. However, maximum haulm yield (3979kg/ha) was recorded with 150% RDF + 7.5t/ha FYM as basal. Maximum net return: cost ratio (3.43) was found with 100 % RDF which was closely followed by that of 100 % RDF + 7.5 t/ha FYM.


Author(s):  
Ekta Joshi ◽  
D.S. Sasode ◽  
R.S. Sikarwar ◽  
Varsha Gupta ◽  
B.S. Kasana

An experiment was conducted during kharif season of 2016 and 2017 at College of Agriculture, Gwalior. To optimise plant population and fertility levels an experiment was laid out in split plot design, replicated thrice in fixed plots and the test variety of the crop groundnut (Mallika) was used. The plant geometry of 30 × 10 cm, 25 × 10 cm and 20 × 10 cm was adopted with three fertility levels as 75, 100 and 125% recommended dose of fertilizers. The yield and economics were increased by optimization of plant geometry and nutrient management under kharif groundnut. Sowing of crop at 30×10 cm spacing resulted in 7.3 and 4.3 % higher pod yield over 25×10 cm and 20×10 cm spacing, respectively and 3.0 % higher haulm yield over 25×10 cm. Similarly, application of 125% RDF resulted in 3.0 and 9.3 % higher pod yield over 100% RDF and 75% RDF, respectively but application of 100% RDF resulted in 18.6% higher haulm yield over 75% RDF and was at par with 125 % RDF application. The highest gross, net returns and B:C ratio was obtained at the spacing of 30×10 cm with 125% RDF.


2019 ◽  
Vol 6 (1) ◽  
Author(s):  
RG MACHHAR ◽  
RV HAJARI ◽  
CB DAMOR ◽  
GD HADIYA ◽  
AK MAHIDA

To study the “Effects of sowing time and spacing on growth and yield of chick pea for green pod in Middle Gujarat Agro-Climatic Condition” was conducted at Agricultural Research Station, Anand Agricultural University, Derol during 2015-16 to 2017-18. The experiment was laid out in a Split Plot Design (SPD) with three replications, comprising date of sowing (6) as a main plot and Spacing (2) sub plot of chick pea total thirty six treatment combinations. The results showed that the 1st Oct. (40th Std. week) sowing recorded significantlyhighergreen pod yield (1554, 1713, 1861 and 1709 kg/ha) was found in GG-2 variety during the all the year and pooled analysis.However, in case of spacing S2 (45x10 cm) recorded higher green pod in yield (1144, 1486, 1568 and 1399 kg/ha) was found non-significant during first two year, while significant in third year and pooled analysis.


Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1622
Author(s):  
Tanmoy Shankar ◽  
Ganesh Chandra Malik ◽  
Mahua Banerjee ◽  
Sudarshan Dutta ◽  
Sagar Maitra ◽  
...  

Rice is the lifeline for more than half of the world population, and in India, in view of its huge demand in the country, farmers adopt a rice–rice cropping system where the irrigation facility is available. As rice is a nutrient-exhausting crop, sustainable productivity of rice–rice cropping system greatly depends on appropriate nutrient management in accordance with the inherent soil fertility. The application of an ample dose of fertilizer is the key factor for maintaining sustainable rice yields and nutrient balance of the soil. Considering the above facts, an experiment was conducted on nutrient management in a rice–rice cropping system at the university farm of Visva-Bharati, situated in a sub-tropical climate under the red and lateritic belt of the western part of West Bengal, India, during two consecutive years (2014–2016). The experiment was laid out in a Randomized Completely Block Design with 12 treatments and three replications, with different rates of N:P:K:Zn:S application in both of the growing seasons, namely, kharif and Boro. The recommended (ample) dose of nutrients was 80:40:40:25:20 and 120:60:60:25:20 kg ha−1 of N:P2O5:K2O:Zn:S in the Kharif and Boro season, respectively. A high yielding variety, named MTU 7029, and a hybrid, Arize 6444 GOLD, were taken in the Kharif and Boro seasons, respectively. The results clearly indicated that the application of a recommended dose of nutrients showed its superiority over the control (no fertilizer application) in the expression of growth characters, yield attributes, yields, and nutrient uptake of Kharif as well as Boro rice. Out of the all treatments, the best result was found in the treatment where the ample dose of nutrients was applied, resulting in maximum grain yield in both the Kharif (5.6 t ha−1) and Boro (6.6 t ha−1) season. The corresponding yield attributes for the same treatment in the Kharif (panicles m−2: 247.9; grains panicle−1: 132.0; spikelets panicle−1: 149.6; test weight: 23.8 g; and panicle length: 30.6 cm) and Boro (panicles m−2: 281.6; grains panicle−1: 142.7; spikelets panicle−1: 157.2; test weight: 24.8 g; and panicle length: 32.8 cm) season explained the maximum yield in this treatment. Further, a reduction or omission of individual nutrients adversely impacted on the above traits and resulted in a negative balance of the respective nutrients. The study concluded that the application of a recommended dose of nutrients was essential for proper nutrient balance and sustainable yields in the rice–rice cropping system.


2020 ◽  
Vol 30 (1) ◽  
pp. 29
Author(s):  
Liferdi Lukman ◽  
Muhammad Syakir ◽  
Wiwin Setiawati ◽  
Ahsol Hasyim

<p><em>Mountain microorganism</em> (MM) merupakan kumpulan dari berbagai mikrobe menguntungkan yang ditemukan pada tanah yang masih virgin pada serasah yang ada di pegunungan. Tujuan penelitian ini adalah mengetahui efikasi MM sebagai bioactivator, biofermented, dan biopestisida untuk meningkatkan hasil cabai dengan menggunakan teknologi LEISA. Penelitian dilaksanakan di Ciamis, Jawa Barat mulai bulan Mei sampai dengan bulan Desember 2016. Rancangan penelitian yang digunakan adalah Rancangan Petak terpisah dengan empat ulangan. Faktor utama adalah pengelolaan hara (a = kompos + EM4) dan (a = kompos + MM + BF) 12. Subplot adalah dosis NPK (b = 1.000 kg/ha NPKdan b = 625 kg/ha NPK), dan sub-subplot adalah cara pengendalian OPT (c1= 12 konvensional dan c2 = biopestisida MM). Hasil penelitian menunjukkan bahwa pemberian MM pada kompos dapat meningkatkan pertumbuhan (tinggi dan lebar kanopi) tanaman cabai sebesar 2 – 8 cm, dapat meningkatkan jumlah buah, jumlah bunga, jumlah cabang, dan bobot buah serta mampu meningkatkan produktivitas cabai sebesar 7,20% hingga 12,5%. Pemberian kompos + MM dapat memperbaiki kesuburan kimia, sifat fisiko-kimia dan biologi tanah sehingga lebih sesuai untuk budidaya tanaman cabai merah. Pengurangan pupuk NPK sebanyak 37,5% tidak memberikan pengaruh yang nyata terhadap peningkatan produktivitas cabai merah dan komponen hasil lainnya. Penggunaan MM sebagai biopestisida dapat menghambat perkembangan OPT dengan efikasi setara dengan penggunaan insektisida sintetik.</p><p><strong>Keywords</strong></p><p>Mikroorganisme pegunungan (MM); Pupuk kimia;, Biopestisida; Cabai; LEISA</p><p><strong>Abstract</strong></p><p>Mountain microorganism (MM) is a collection of various beneficial microorganism that was found in virgin soils or forest decomposing organic matter, used in the preparation of bokashi, bioferments, and biopesticides. The objective of this experiment found the efficacy of MM as bioactivator, bioferments, and biopesticide to increase the yield of chili pepper under LEISA technology. The experiment was conducted in Ciamis, West Java from May to December 2016. The experiment arranged in a split-plot design with four applications. Main plot was nutrient management (a1 = compost + EM4) and (a2 = compost + MM + BF). Subplot were dose of NPK (b1 = 1,000 kg/ha of NPK, b2 = 625 kg/ha of NPK), and sub-subplot were control of pest and diseases (c1= conventional and c2 = biopesticide). Result of this experiment showed that the used of MM on compost can increase growth (height and width of the canopy) pepper plants of 2-8 cm, the amount of fruit, flower number, number of branches and fruit weight and increase production chili at 7.20% until 12. 15%. The use of compost + MM can improve the fertility of chemical, physicochemical properties, and biological soil, making it more suitable for the cultivation of chili pepper. Reduction of NPK fertilizer as much as 37.5% do not provide an effect on productivity improvement and the other components of yield. Efficacy of MM as biopesticide similar to synthetic pesticide and could reduce plant damage due to pest and diseases.</p>


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