Effects of Timing of Paddy Field Drainage for Foliage Treatment Herbicide Spraying and Nitrogen Top-dressing on the Growth and Yield of Dry Direct Seeded Rice in Hokkaido, Japan

2014 ◽  
Vol 83 (4) ◽  
pp. 368-373
Author(s):  
Jun Ushiki ◽  
Stoshi Hayashi ◽  
Tsuji Hiroyuki
Keyword(s):  
Paddy Field ◽  
Growth And Yield ◽  
Direct Seeded ◽  
Field Drainage

scholarly journals Effect of Winter Weeds on Growth and Yield of Direct-Seeded Rice in No-tillage Dry Paddy Field.

1997 ◽  
Vol 66 (3) ◽  
pp. 436-441 ◽  
Author(s):  
Matsuo ITOH ◽  
Michihiko TAKAHASHI
Keyword(s):  
Paddy Field ◽  
Growth And Yield ◽  
No Tillage ◽  
Direct Seeded

scholarly journals Seed Priming with Potassium Nitrate and Gibberellic Acid Enhances the Performance of Dry Direct Seeded Rice (Oryza sativa L.) in North-Western India

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 849
Author(s):  
Buta Singh Dhillon ◽  
Virender Kumar ◽  
Pardeep Sagwal ◽  
Navjyot Kaur ◽  
Gurjit Singh Mangat ◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
Seed Priming ◽  
Potassium Nitrate ◽  
Growth And Yield ◽  
Western India ◽  
Yield Attributes ◽  
Crop Establishment ◽  
Direct Seeded

Poor early growth and uneven crop establishment are reported as the major bottlenecks in wide-scale adoption and optimal yield realization of dry direct-seeded rice (DSR). Seed priming can potentially help overcome these problems in DSR. Therefore, laboratory and field studies were conducted at Punjab Agricultural University, Ludhiana, India, during kharif/wet-season 2018 and 2019 to evaluate the effect of different priming techniques on germination, establishment, growth, and grain yield of rice under DSR conditions. The following priming treatments were evaluated: dry non-primed seed (control), hydropriming with distilled water, halopriming with 2.0% potassium nitrate, hormopriming with 50 ppm gibberellic acid (GA3), and osmopriming with polyethylene glycol (PEG)(−0.6 MPa), each with 12 and 24 h priming duration. In 2019, priming treatments were tested under two DSR establishment methods—conventional DSR (sowing in dry soil followed by irrigation) and soil mulch DSR (locally known as vattar DSR) (sowing in moist soil after pre-sowing irrigation), whereas in 2018, priming treatments were evaluated under conventional DSR only. In both years, halopriming and hormopriming resulted in a 7–11% increase in rice yields compared to non-primed dry seed (control). Osmopriming resulted in a 4% yield increase compared to control in 2018 but not in 2019. The higher yields in halopriming and hormopriming were attributed to higher and rapid germination/crop emergence, better root growth, and improvement in yield attributes. Priming effect on crop emergence, growth, and yield did not differ by DSR establishment methods and duration of priming. Conventional DSR and soil mulch DSR did not differ in grain yield, whereas they differed in crop emergence, growth, and yield attributes. These results suggest that halopriming with 2.0% potassium nitrate and hormopriming with 50 ppm GA3 has good potential to improve crop establishment and yield of rice in both conventional and soil mulch DSR systems.

A, The ESTIMATION OF ECONOMIC THRESHOLDS OF JUNGLE RICE (ECHINOCHLOA COLONA L.) AND FALSE AMARANTH (DIGERA ARVENSIS FORSSK.) IN DIRECT SEEDED RICE

2020 ◽  
Vol 27 (2) ◽  
pp. 507-523
Author(s):  
Amir Ehsan ◽  
Muhammad Ehsan Safdar1 ◽  
Amjed Ali
Keyword(s):  
Block Design ◽  
Dry Weight ◽  
Field Trials ◽  
Research Area ◽  
Growth And Yield ◽  
Rice Grain ◽  
College Of Agriculture ◽  
Competitive Index ◽  
Economic Thresholds ◽  
Direct Seeded

ABSTRACT There is little understanding about ecological interference of weeds in direct-seeded rice. To get estimates of economic thresholds of two weeds in direct seeded rice, two-year field trials were conducted at research area of College of Agriculture, University of Sargodha, Punjab-Pakistan. Treatments included 0, 22, 44, 66 and 88 plants m-2 densities of each of Echinochloa colona and Digera arvensis laid out in randomized complete block design. Augmented densities of E. colona (0, 22, 44, 66 and 88 weed plants m-2) enhanced its plant dry biomass up to 348 and 353%; and relative competitive index maximally to 80 and 77% in years 2015 and 2016, respectively. While the corresponding increases in plant dry weight and relative competitive index of D. arvensis were 367 and 360% and 79 and 82%. The enhancement in N (up to 258 & 257 %), P (up to 220 & 232%) and K (up to 293 & 301%) uptake in years 2015 and 2016, respectively were made by E. Colona whereas the corresponding increases in N, P and K assimilation by D. arvensis were as far as 265 & 257%, 238 & 233% and 305 & 298%, respectively. The declines in growth and yield of rice were observed in response to growing number of both the weeds. Rice grain yield losses ranged between 9.8 to 80% and 28 to 80% by E. Colona and D. arvensis. The economic thresholds of false amaranth and jungle rice were estimated to be 1.6-1.4 plants m-2 and 2.2-2.6 plants m-2, respectively.

scholarly journals Effects of the Rotary Tilling and Ridge-making Implement on the Growth and Yield of Six-rowed Barley (Hordeum vulgare L.) in an Upland Field Converted from Paddy Field in Hokuriku Region

2012 ◽  
Vol 81 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Sachiko Ikenaga ◽  
Hisashi Hosokawa ◽  
Kazuhide Adachi ◽  
Satoshi Ohno ◽  
Mikio Nomura ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Paddy Field ◽  
Growth And Yield ◽  
Hordeum Vulgare L ◽  
Upland Field

scholarly journals Influence of Pine Straw Harvesting, Prescribed Fire, and Fertilization on a Louisiana Longleaf Pine Site

2009 ◽  
Vol 33 (3) ◽  
pp. 115-120 ◽  
Author(s):  
James D. Haywood
Keyword(s):  
Management Practices ◽  
Prescribed Burning ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
Growth And Yield ◽  
Prescribed Burn ◽  
Straw Management ◽  
Pine Straw ◽  
Main Plot ◽  
Direct Seeded

Abstract This research was initiated in a 34-year-old, direct-seeded stand of longleaf pine (Pinus palustris Mill.) to study how pine straw management practices (harvesting, fire, and fertilization) affected the longleaf pine overstory and pine straw yields. A randomized complete block split-plot design was installed with two main plot treatments: (1) no fertilization and (2) fertilization with 45 lb N and 50 lb P/ac in April 1991 and May 1997 and with 50 lb P and 72 lb K/ac in April 2004. There were four subplot treatments: (1) control—no activity except a standwide thinning in June 1999, (2) prescribed burn 6 times from March 1991 through May 2004, (3) prescribed burned as in subplot treatment 2 and pine straw harvested in early 1992 and 1993, and (4) annual harvest of pine straw 13 times from early 1992 through April 2006. Fertilization did not affect longleaf pine growth and yield over the 15-year study. Subplot management also did not influence longleaf pine growth possibly because the adverse effects that competition, repeated prescribed burning, and litter removal have on longleaf pine growth could not be separated among subplot treatments. Fertilization did not directly affect pine straw yields; however, it appeared that pine straw yields decreased over time.

Nitrogen Fertilization of Direct‐Seeded Flooded vs. Transplanted Rice: I. Nitrogen Uptake, Photosynthesis, Growth, and Yield

Crop Science ◽  
1990 ◽  
Vol 30 (6) ◽  
pp. 1276-1284 ◽  
Author(s):  
H. F. Schnier ◽  
M. Dingkuhn ◽  
S. K. De Datta ◽  
K. Mengel ◽  
J. E. Faronilo
Keyword(s):  
Nitrogen Uptake ◽  
Nitrogen Fertilization ◽  
Growth And Yield ◽  
Transplanted Rice ◽  
Direct Seeded

scholarly journals The Effect of Different Weed Management Strategies on the Growth and Yield of Direct-Seeded Dry Rice (Oryza sativa)

2016 ◽  
Vol 34 (1) ◽  
pp. 57-64 ◽  
Author(s):  
S. MUHAMMAD ◽  
I. MUHAMMAD ◽  
A. SAJID ◽  
L. MUHAMMAD ◽  
A. MAQSHOOF ◽  
...  
Keyword(s):  
Weed Control ◽  
Crop Yield ◽  
Weed Management ◽  
Management Strategies ◽  
Control Measures ◽  
Growth And Yield ◽  
Primary Concern ◽  
Herbicide Treatment ◽  
Direct Seeded ◽  
Hand Weeding

Weed management is a primary concern in direct seeded rice (DSR) cropping because weed growth becomes a major constraint on crop yield. A two year field study was set up to evaluate the effect of various weed control measures on crop growth, grain yield and grain quality of DSR. The experiment involved five different weed control measures: hand weeding, hoeing, inter-row tine cultivation, inter-row spike hoeing and herbicide treatment (Nominee 100 SC). The extent of weed control (compared to a non-weeded control) ranged from 50-95%. The highest crop yield was obtained using hand weeding. Hand weeding, tine cultivation and herbicide treatment raised the number of fertile rice tillers formed per unit area and the thousand grain weight. Tine cultivation provided an effective and economical level of weed control in the DSR crop.

Effect of nitrogen scheduling and weed management on weed density, growth and yield of direct-seeded rice (Oryza sativaL.)

2015 ◽  
Vol 16 (4) ◽  
pp. 643
Author(s):  
Santosh Kumar ◽  
R. K. Singh ◽  
R. N. Meena ◽  
S. P. Singh
Keyword(s):  
Weed Management ◽  
Growth And Yield ◽  
Weed Density ◽  
Density Growth ◽  
Direct Seeded
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