scholarly journals ADAPTIVE RESEARCH ON RICE/POTATO ROTATION MODEL (SRI FOR RICE AND MINIMUM TILLAGE METHOD FOR POTATO) IN PADDY LAND OF PHU BINH DISTRICT, THAI NGUYEN PROVINCE

2021 ◽  
Vol 226 (09) ◽  
pp. 240-249
Author(s):  
Hoàng Văn Phụ ◽  
Hà Xuân Linh ◽  
Đặng Hoàng Hà
Keyword(s):  
Minimum Tillage ◽  
Paddy Land ◽  
Tillage Method ◽  
Potato Rotation ◽  
Rotation Model

Mô hình luân canh lúa/khoai tây theo phương pháp làm đất tối thiểu (SRI-GMP) được xây dựng và triển khai tại huyện Phú Bình, tỉnh Thái Nguyên trong giai đoạn 2018 - 2019. Nghiên cứu nhằm so sánh giữa canh tác lúa thông thường (độc canh lúa không áp dụng SRI là đối chứng); độc canh cây lúa có áp dụng SRI; và SRI-GMP. Áp dụng SRI-GPM thúc đẩy cân bằng sinh thái, giảm phát thải khí nhà kính, giúp người dân nâng cao nhận thức về bảo vệ môi trường và ứng phó với biến đổi khí hậu. Năng suất khoai tây đạt 25 tấn/ha làm tăng thu nhập từ 4,9 triệu đồng/ha, 210,5 nghìn đồng/ngày công và 1,09 đồng/đồng vốn đầu tư ở canh tác lúa độc canh thông thường lên 141,3 triệu đồng/ha, 644,4 nghìn đồng/ngày công và 2,75 đồng/đồng đối với vốn đầu tư khi áp dụng SRI-GPM tương ứng. SRI-GPM đã tạo ra sự kết nối hợp tác giữa nông dân, doanh nghiệp, nhà khoa học và chính quyền, tạo cơ hội cho nông dân tham gia vào chuỗi giá trị nâng cao giá trị gia tăng và ổn định kinh tế cho người dân địa phương.

scholarly journals Influence of Tillage Method on Management ofAmaranthusSpecies in Soybean

2017 ◽  
Vol 31 (1) ◽  
pp. 10-20 ◽  
Author(s):  
Jaime A. Farmer ◽  
Kevin W. Bradley ◽  
Bryan G. Young ◽  
Lawrence E. Steckel ◽  
William G. Johnson ◽  
...  
Keyword(s):  
Conventional Tillage ◽  
No Tillage ◽  
Tillage Systems ◽  
Deep Tillage ◽  
Minimum Tillage ◽  
Herbicide Resistant ◽  
Tillage System ◽  
Tillage Method ◽  
Residual Herbicide ◽  
Herbicide Programs

A field study was conducted in 2014 and 2015 in Arkansas, Illinois, Indiana, Ohio, Tennessee, Wisconsin, and Missouri to determine the effects of tillage system and herbicide program on season-long emergence ofAmaranthusspecies in glufosinate-resistant soybean. The tillage systems evaluated were deep tillage (fall moldboard plow followed by (fb) one pass with a field cultivator in the spring), conventional tillage (fall chisel plow fb one pass with a field cultivator in the spring), minimum tillage (one pass of a vertical tillage tool in the spring), and no-tillage (PRE application of paraquat). Each tillage system also received one of two herbicide programs; PRE application of flumioxazin (0.09 kg ai ha–1) fb a POST application of glufosinate (0.59 kg ai ha−1) plusS-metolachlor (1.39 kg ai ha–1), or POST-only applications of glufosinate (0.59 kg ha−1). The deep tillage system resulted in a 62, 67, and 73% reduction inAmaranthusemergence when compared to the conventional, minimum, and no-tillage systems, respectively. The residual herbicide program also resulted in an 87% reduction inAmaranthusspecies emergence compared to the POST-only program. The deep tillage system, combined with the residual program, resulted in a 97% reduction inAmaranthusspecies emergence when compared to the minimum tillage system combined with the POST-only program, which had the highestAmaranthusemergence. Soil cores taken prior to planting and herbicide application revealed that only 28% of theAmaranthusseed in the deep tillage system was placed within the top 5-cm of the soil profile compared to 79, 81, and 77% in the conventional, minimum, and no-tillage systems. Overall, the use of deep tillage with a residual herbicide program provided the greatest reduction inAmaranthusspecies emergence, thus providing a useful tool in managing herbicide-resistantAmaranthusspecies where appropriate.

Tillage, physical properties of Coto clay and the yields of plantain and sweet potato

1969 ◽  
Vol 71 (3) ◽  
pp. 307-311
Author(s):  
Winston Martínez-Rivera ◽  
Héctor M. Lugo-Mercado ◽  
José Badillo-Feliciano ◽  
James S. Beaver
Keyword(s):  
Physical Properties ◽  
Sweet Potato ◽  
Physical Property ◽  
The Other ◽  
Soil Resistance ◽  
Minimum Tillage ◽  
No Till ◽  
Potato Yields ◽  
Tillage Method ◽  
Tillage Methods

The only physical property of Coto clay found to be affected by the tillage method was soil resistance, which was greater for the no-till than for the other tillage treatments. The upper 10 cm were the most affected. Tillage methods did not affect plantain yields; thus, minimum tillage can be recommended for this crop.  On the other hand, significantly higher sweet potato yields were obtained when the soil was plowed and disced twice.

An in vitro rotation model composed of disposables for investigation of endothelialization of artificial vascular prostheses

2012 ◽  
Vol 60 (S 01) ◽  
Author(s):  
M Lescan ◽  
J Kobba ◽  
M Avci-Adali ◽  
B Neumann ◽  
N Perle ◽  
...  
Keyword(s):  
Vascular Prostheses ◽  
Rotation Model

Minimum Tillage on an Eroded Geary‐Like Soil 1

1966 ◽  
Vol 58 (2) ◽  
pp. 241-242
Author(s):  
K. W. Snelling ◽  
J. A. Hobbs
Keyword(s):  
Minimum Tillage

scholarly journals Linking Long-Term Changes in Soil Salinity to Paddy Land Abandonment in Jaffna Peninsula, Sri Lanka

Agriculture ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 211
Author(s):  
Tharani Gopalakrishnan ◽  
Lalit Kumar
Keyword(s):  
Sri Lanka ◽  
Soil Salinity ◽  
Agricultural Land ◽  
Sea Water ◽  
Land Use Changes ◽  
Soil Salinization ◽  
Landsat Images ◽  
Paddy Land ◽  
Semi Arid Region

Soil salinity is a serious threat to coastal agriculture and has resulted in a significant reduction in agricultural output in many regions. Jaffna Peninsula, a semi-arid region located in the northern-most part of Sri Lanka, is also a victim of the adverse effects of coastal salinity. This study investigated long-term soil salinity changes and their link with agricultural land use changes, especially paddy land. Two Landsat images from 1988 and 2019 were used to map soil salinity distribution and changes. Another set of images was analyzed at four temporal periods to map abandoned paddy lands. A comparison of changes in soil salinity with abandoned paddy lands showed that abandoned paddy lands had significantly higher salinity than active paddy lands, confirming that increasing salts owing to the high levels of sea water intrusion in the soils, as well as higher water salinity in wells used for irrigation, could be the major drivers of degradation of paddy lands. The results also showed that there was a dramatic increase in soil salinity (1.4-fold) in the coastal lowlands of Jaffna Peninsula. 64.6% of the salinity-affected land was identified as being in the extreme saline category. In addition to reducing net arable lands, soil salinization has serious implications for food security and the livelihoods of farmers, potentially impacting the regional and national economy.

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