scholarly journals Preventive Weed Management in Direct-Seeded Rice

2017 ◽  
pp. 45-142 ◽  
Author(s):  
Adusumilli N. Rao ◽  
Daniel C. Brainard ◽  
Virender Kumar ◽  
Jagdish K. Ladha ◽  
David E. Johnson
2021 ◽  
Vol 53 (2) ◽  
pp. 135-141
Author(s):  
Sheela Barla ◽  
R.R. Upasani ◽  
Alfa Malika Beck

2016 ◽  
Vol 34 (1) ◽  
pp. 57-64 ◽  
Author(s):  
S. MUHAMMAD ◽  
I. MUHAMMAD ◽  
A. SAJID ◽  
L. MUHAMMAD ◽  
A. MAQSHOOF ◽  
...  

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.


2019 ◽  
Vol 51 (1) ◽  
pp. 6
Author(s):  
Y.M. Ramesha ◽  
S.R. Anand ◽  
D. Krishnamurthy ◽  
Manjunatha Bhanuvally

2016 ◽  
Vol 48 (3) ◽  
pp. 319
Author(s):  
Gaurav Jain ◽  
C.S. Singh ◽  
Ashok Kumar Singh ◽  
Arvind Kumar Singh ◽  
S.K. Singh

2011 ◽  
Vol 22 (3) ◽  
pp. 263 ◽  
Author(s):  
DAUD Devasinghe ◽  
KP Premarathne ◽  
UR Sangakkara

Author(s):  
Alisha Kumari ◽  
Rajan Kumar ◽  
Sweeti Kumari ◽  
Rinki Kumari Kumari

A field experiment was conducted during rainy (kharif) season of 2016 at Crop Research centre Pusa, Bihar to investigate the “Effect of Moisture Regimes and Weed Management on quality of Direct Seeded Rice”. The treatments consisted of three moisture regimes in main plots and five weed management practices in sub plots. The results showed that grain (3.62 t/ha) and straw yields (52.44 q/ha), harvest index (40.83%), P uptake (10.97 kg/ha) by rice grain were maximum with 3 days Disappearance of Ponded Water(DPW) which were significantly superior to 5 and 7 DPW but N (42.19 kg/ha) and P uptake (10.97 kg/ha) by rice grain, N (30.53 kg/ha), P (8.41 kg/ha) and K (74.47 kg/ha) uptake by straw were statistically at par with 5 DPW. With regard to weed management grain yield(35.62 q/ha) was maximum with W4 treatment of weed management which was significantly superior to W2, W1 and W5 but was statistically at par with W3 treatment while, straw yield (45.12 q/ha), N(41.37 and 29.75 kg/ha), P(10.72 and 8.18 kg/ha) and K(8.80 and 7.58 kg/ha) uptake by rice grain and straw were significantly superior to W1 and W5 and were comparable to W3 and W2 treatments.  In harvest index (40.97%), W4 treatment was significantly superior to all the treatments. N, P and K content in grain and straw did not vary significantly with varying moisture regimes weed management treatments.


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