Turkish Journal of Field Crops

Phone:

90 232 311 26 79

Email:

contact@field-crops.org

Address:

2. Beyler İş Hanı, No: 313 Kat: 3 Konak-İzmir

EFFECTS OF PLASTIC FILM MULCHING CULTIVATION SYSTEM ON SOME AGRONOMIC CHARACTERS OF RICE IN RELATION WITH THE INCREASE OF PADDY ACREAGE

Mithat Nuri Gevrek, Necmi Beşer, Klaus Dittert, Özgür Tatar

Abstract

The study was conducted at the Ege University, Faculty of Agriculture, Menemen Research, Application and Production Center for two years (2003 and 2004) and in the experimental fields of Trakya Agricultural Research Institute for one year (2004). Field experiments were established in Randomized the Complete Block Design (RCBD) in a split plot arrangement with three replications. Rice cultivars Baldo, Toag92 and Osmancık, were the first factor of the experiment. Growing techniques were the second factors as plastic film mulching technique - intermittent irrigation - transplanting system (PFMT-II-TS), regular irrigation -transplanting system (RI-TS), regular irrigation- broadcast sowing system (RI-BSS) while intermittent irrigation-broadcast sowing systems (II-BSS) was used as control. Colorless plastic film with 0.02 mm thickness (200 kg-ha) was used to cover paddy surface. Results can be summarized as followings: paddy rice yield, number of grain per plant and rate of crude protein (5830.0 kg-ha and 240 number plant1, 10.0 % respectively) were higher and statistically different (LSD 0.05) while plant height and sterility rate (80.6 cm and 5.7 % respectively) were lower and statistically different (LSD 0.05) in PFMT-II-TS application. Covering paddies with plastic film caused 5 days earlier flowering period and 86.0 % reduction in the number of weed plants per square meter and to 7.4° C increase in soil level temperature. In the intermittent irrigation- transplanting system with the intervention of the Plastic film mulching an increase in the yield has been observed when compared to the RI-TS system the rate is 8 %, II-BSS system it is 11%, RI-BSS system 17%.

Keyword: Rice paddy, plastic film mulching, growing techniques and quality ,

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.
Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding