scholarly journals Respons Pertumbuhan dan Hasil Beberapa Varietas Unggul Baru Padi Sawah dengan Jarak Tanam yang Berbeda melalui Pendekatan Teknologi Jajar Legowo Super

JURNAL PANGAN ◽  
2022 ◽  
Vol 30 (3) ◽  
pp. 147-154
Author(s):  
Yahumri Yahumri ◽  
Yartiwi Yartiwi ◽  
Ahmad Damiri ◽  
Rudi Hartono
Keyword(s):  

Teknologi jajar legowo super merupakan integrasi berbagai teknologi yang diharapkan dapat meningkatkan produktivitas komoditas padi. Komponen teknologi jarwo super terdiri dari budidaya jajar legowo, pemanfaatan alat mesin pertanian, benih unggul, pemupukan dengan dosis optimal menggunakan Perangkat Uji Tanah Sawah, pemanfaatan dekomposer M-Dec dalam pengelolaan limbah jerami, pemanfaatan pupuk hayati Agrimeth dalam seed treatment dan biopestisida untuk pengendalian organisme pengganggu tanaman. Tujuan pengkajian untuk membandingkan respons pertumbuhan dan daya hasil beberapa varietas unggul baru padi sawah pada sistem tanam jajar legowo 2:1 dengan jarak tanam yang berbeda melalui pendekatan paket teknologi budidaya jajar legowo super. Pengkajian dilakukan pada bulan Juli–Oktober tahun 2016 di Desa Tanjung Besar, Kecamatan Kedurang, Kabupaten Bengkulu Selatan, Provinsi Bengkulu, menggunakan rancangan acak kelompok faktorial. Faktor pertama Jarak Tanam (j) sebanyak 2 taraf dan faktor kedua penggunaan varietas unggul baru padi sawah (v) sebanyak 4 taraf. Masing-masing kombinasi perlakuan diulang sebanyak 6 kali. Hasil pengkajian menunjukkan bahwa varietas Inpari 10 dan Inpari 30 memberikan respons terbaik dalam mendukung pertumbuhan dan hasil yang ditanam dengan sistem tanam jajar legowo yaitu jarak tanam [(20x10) x40 cm] dengan jumlah anakan produktif masing-masing 17 dan 15 batang/rumpun, dan produktivitas gabah kering panen 7,57 ton/ha dan 7,20 ton/ha.

2013 ◽  
Vol 38 (1) ◽  
pp. 61-70 ◽  
Author(s):  
SMA Hossain ◽  
MA Baque ◽  
MR Amin

The Imidacloprid insecticide, Gaucho 70 WS at 1.5, 2.5, 3.5, 4.5 and 5.5 g/kg seed was used as seed treatment and monocrotophos 40 WSC at 1120 ml/ha was applied as foliar spray on CB9 cotton cultivar to suppress aphid, whitefly and thrips, and impact on their natural enemies during 2008-2011 at the Regional Cotton Research Station, Dinajpur, Bangladesh. The activity of natural enemies, such as ladybird beetle, lacewing, syrphid, and spider population on the sucking pests attacking cotton cultivar CB9 and yield of cotton were recorded. Imidacloprid significantly reduced aphid, whitefly, and thrips population on cotton crops compared to untreated control or foliar spray of monocrotophos 40 WSC at 1120 ml/ha. Ladybird beetles, lacewings, syrphids, and spiders were abundant in the field but their population decreased in the treated plots compared to untreated control. The CB9 cotton cultivar produced significantly higher yield (1.73 t/ha) with a benefit cost ratio 12.47 when seeds were treated with Imidacloprid at 5.5 g/kg fuzzy seed. This study indicated that Imidacloprid (Gaucho 70 WS) used as a seed treatment may be suggested to the cotton growers for controlling sucking pests. Bangladesh J. Agril. Res. 38(1): 61-70, March 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i1.15190


Author(s):  
A.V. Konstantinovich ◽  
◽  
A.S. Kuracheva ◽  
E.D. Binkevich

In conditions of climate change, when temperature and precipitation fluctuations occur more and more frequently during the growing season, it is necessary to obtain high quality seedlings with "immunity" to various stress factors, including high weediness, the damage from which is associated with a decrease in yield (by 25 -35%) and with a deterioration in the quality of agricultural products. Due to the imbalance in production technology, seedlings are often weakened, overgrown, with a low yield per unit area and survival rate in the field. One of the solutions to this problem is the use of PP for pre-sowing seed treatment to increase the competitiveness of seedlings in the field.


Author(s):  
Jim Fawcett ◽  
Zack Koopman ◽  
Lance Miller ◽  
Wayne Roush ◽  
Josh Sievers

2018 ◽  
Vol 2 (1) ◽  
pp. 53-60
Author(s):  
A.V. Cherenkov ◽  
◽  
S.K. Gruzinov ◽  
I.O. Kobos ◽  
◽  
...  

2020 ◽  
Vol 4 (41) ◽  
pp. 35-43
Author(s):  
ALEKSEY A. VASIL’EV ◽  
◽  
ALEKSEY N. VASIL’EV ◽  
DMITRIY BUDNIKOV ◽  
ANTON SHARKO

The use of electrophysical influences for pre-sowing treatment of seeds is an effective way to increase their sowing quality. The use of these methods is limited by the fact that their implementation requires new technological equipment in grain processing lines. This problem is solved more easily when pre-sowing processing is performed using installations for active ventilation and grain drying. (Research purpose) The research purpose is in determining the possibility of using active ventilation units and ultra-high-frequency convective grain dryers for pre-sowing grain processing and to evaluating the effectiveness of such processing using computer modeling. (Materials and methods) It is necessary to ensure the uniformity of processing with external influence the seeds placed in a dense layer. Authors carried out pre-sowing treatment of seeds on real installations. Treated seeds were sown in experimental plots and the results of treatment were evaluated. (Results and discussion) The article presents graphs of changes in grain temperature and humidity during processing. To check the feasibility of pre-sowing treatment, authors performed modeling of air-heat and ultra-high-frequency convective seed treatment processes. Based on the results of field experiments, air-heat treatment stimulates the development of secondary plant roots, contributes to an intensive increase in the green mass of plants; ultra-high-frequency convective seed treatment allows increasing the number of productive stems in plants, the number of ears in one plant. (Conclusions) Technological equipment designed for drying and active ventilation of grain can be effectively used for pre-sowing seed processing. In the course of field experiments, it was revealed the possibility of controlling the structure of the crop using different types of external influence on seeds during their pre-sowing processing.


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