نتایج جستجو برای: rice growing system therefore

تعداد نتایج: 2913202  

2016
Qun Kang Rui Li Qi Du Bowen Cheng Zhiqi Liao Chengcheng Sun Zhaohua Li

This study aimed to explore the ecological adaptability and the possibility of growing rice with floating bed on the dilute biogas slurry. The results of the experiments show that the growth stage, rice plant height, and rice yield and quality were significantly affected by multiple dilutions; rice plants cultivated with 45 multiple dilutions had better ecological adaptability than others. In t...

Cultivation of legume species as the second crop in rotation with rice and using plant growth promoting bacteria can be a good approach to improve rice production sustainability. This experiment was carried out to evaluate the effect of plant growth promoting bacteria on accelerating vegetative growth of crimson clover (Alborz 1) and rice (Hashemi) yield in a rice-based cropping system. A facto...

Journal: :Communications in agricultural and applied biological sciences 2004
Parissa Taheri Victoria Bonecarrere Monica Höfte

Blast disease, caused by hemibiotrophic fungus Pyricularia oryzae Sacc. (teleomorph: Magnaporthe oryzae (Hebert) Barr.), previously known as Magnaporthe grisea, is the most serious disease of rice and causes high yield losses in most rice growing regions every year. Blast is an endemic disease in all Iranian and Uruguayan rice fields, with yield losses up to 90 % that has been reported from som...

2018
Pepijn A J van Oort Sander J Zwart

This study is the first of its kind to quantify possible effects of climate change on rice production in Africa. We simulated impacts on rice in irrigated systems (dry season and wet season) and rainfed systems (upland and lowland). We simulated the use of rice varieties with a higher temperature sum as adaptation option. We simulated rice yields for 4 RCP climate change scenarios and identifie...

2017
Minmin Sun Yuan Zhang Jing Ma Wenping Yuan Xianglan Li Xiao Cheng

The Sanjiang Plain (SJP), one of the major rice producing regions in China, is an important source of methane (CH4) emissions. However, there have been large uncertainties in the estimates of CH4 emissions from this area during the past few years. In this study, we estimated CH4 emissions using a process-based model derived by rice area, CH4 flux, land surface temperature (LST), and the ratio o...

Journal: :The Plant cell 1989
S. A. Kay A. Nagatani B. Keith M. Deak M. Furuya N. H. Chua

To investigate the mechanisms of phytochrome action in vivo, we have overexpressed rice phytochrome in transgenic tobacco plants. A full-length rice phytochrome cDNA was fused to the cauliflower mosaic virus 35S promoter and transferred to tobacco. The progeny of some of the transgenic plants contain large amounts of rice phytochrome mRNA in green leaves. Extracts prepared from overexpressing p...

Journal: :journal of agricultural science and technology 2010
s. b. fakayode o. a. omotesho a. e. omoniwa

this study examined the nature and patterns of rice consumption in nigeria, using kwara state as a case study. the study methodology comprised a two stage sampling technique which was used to survey 110 rice consumer households across two villages and six towns in kwara state. analytical tools used in the study include descriptive statistics and the multinomial logit model. the major factors th...

Afraciab Ala Habibollah Ranjbar Mahmood Reza Salar Mehrdad Mansouri

Rapeseed as one the most crops is the basic needs of human feeding in order to produce oil. A field experiment was conducted to study the effects of different tillage system, seeding method and rates on yield and its components, as well as, seed oil percentage of rapeseed (Brassica napus L. cv. Hyola-401) during 2011-12 growing season at Rice Research Institute of Iran-Department of Ma...

Journal: :Remote Sensing 2015
Pardhasaradhi Teluguntla Dongryeol Ryu Biju George Jeffrey P. Walker Hector M. Malano

Rice is one of the major crops cultivated predominantly in flooded paddies, thus a large amount of water is consumed during its growing season. Accurate paddy rice maps are therefore important inputs for improved estimates of actual evapotranspiration in the agricultural landscape. The main objective of this study was to obtain flooded paddy rice maps using multi-temporal images of Moderate Res...

2013
Nathaniel B. Lyman Krishna S. V. Jagadish L. Lanier Nalley Bruce L. Dixon Terry Siebenmorgen

Future increases in global surface temperature threaten those worldwide who depend on rice production for their livelihoods and food security. Past analyses of high-temperature stress on rice production have focused on paddy yield and have failed to account for the detrimental impact of high temperatures on milling quality outcomes, which ultimately determine edible (marketable) rice yield and ...

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