Most dominated weed species in rice field is

1 Answer

Answer :

Ans.Echinochloa spp.

Related questions

Description : What is the Critical Period of Crop-Weed Competition for Upland rice condition?

Last Answer : Ans.Entire period of crop growth

Description : What is the Critical Period of Crop-Weed Competition for transplanted rice?

Last Answer : Ans.30-45 DAS

Description : Weed caused relatively more loss in rice productivity, when it is

Last Answer : Ans.Direct seeded

Description : Grassy weed in barley field can be effectively controlled by

Last Answer : Ans.Both Isoproturon and 2,4-D

Description : Common herbicide used in rice crop field?

Last Answer : Ans.Anilophos and Butachlor.

Description : Gas emitted from rice field is

Last Answer : Ans.CH4 (Methan).

Description : The nursery area required for providing seedlings for transplanting 1 ha rice field

Last Answer : Ans.1000 m2 (1/10 ha)

Description : BIPOLARIS is used to control weed

Last Answer : Ans.Johnson grass

Description : The most dominant aquatic weed Eichhornia crassipes is controlled by

Last Answer : Ans.Neochetina bruchi

Description : First biologically controlled weed is

Last Answer : Ans.Lantana camara

Description : Which of the following weed having herbicide resistance?

Last Answer : Ans.Avena fatua

Description : Stale seed bed technique of weed control is a

Last Answer : Ans.Cultural method

Description : The practice of flushing out germinable weed seeds before crop sowing is called

Last Answer : Ans.Stale seed bed

Description : What is the Critical Period of Crop-Weed Competition for sugarcane?

Last Answer : Ans.30-120 DAS

Description : Which of the following stages of a crop are more prone to weed competition?

Last Answer : Ans.Germination to seedling

Description : The total stem parasitic weed of Lucerne?

Last Answer : Ans.Cuscuta spp

Description : The total root parasitic weed of Tobacco?

Last Answer : Ans.Orabanchi spp.

Description : Semi stem parasitic weed of Mango?

Last Answer : Ans.Loranthus spp.

Description : Semi root parasitic weed of Sorghum and Sugarcane?

Last Answer : Ans.Striga spp.

Description : Weed that depends for its growth on its host plant?

Last Answer : Ans.Parasitic weed

Description : Undesirable, troublesome weed difficult to control

Last Answer : Ans.Noxious weed

Description : Problematic weed, whose seed once mixed with crop seed is extremely difficult to separate?

Last Answer : Ans.Objectionable weed

Description : Cropped along with wild land weed are known as?

Last Answer : Ans.Facultative weeds

Description : Stem parasitic weed of lucerne is

Last Answer : Ans.Cuscuta reflexa (Doddar)

Description : The objectionable weed of berseem is

Last Answer : Ans.Kasini (Chicorium intybus)

Description : Objectionable weed of wheat

Last Answer : Ans.Convolvulus arvensis

Description : Mimicry weeds of rice and wheat is

Last Answer : Ans.Phalaris and wild rice

Description : Water requirement of rice is

Last Answer : Ans.90-250 cm

Description : Irrigation method suitable for lowland rice and jute

Last Answer : Ans.Flooding

Description : Hydrothermal process of rice which saves vitamin B12?

Last Answer : Ans.Parboiling 2. Wheat

Description : Killer disease of rice are

Last Answer : Ans.Bacterial Leaf Blight (BLB) and Tungro virus

Description : Dead heart and white ear of rice is caused by

Last Answer : Ans.Yellow stem borer

Description : White eye of rice is caused by

Last Answer : Ans.Fe deficiency.

Description : Polish percentage of rice is

Last Answer : Ans.2%

Description : Super rice variety is

Last Answer : Ans.Lunishree

Description : Rice varieties suitable for Saline-alkaline soil are

Last Answer : Ans.CSR-10, CSR-13, CSR-27

Description : The deep water rice are

Last Answer : Ans.Punkaj, Jagannath

Description : The Blast resistance varieties of rice is

Last Answer : Ans.Tulsi, IR64

Description : The Gall midge resistance varieties of rice is

Last Answer : Ans.Phalguna, Surekha, Suraksha

Description : Anaerobic environment in rice soil is responsible for gaseous loss of fertilizer nitrogen by

Last Answer : Ans.Denitrification

Description : Aroma in rice is due to presence of

Last Answer : Ans.“Di-acetyl 1 propaline” chemical

Description : Nitrogen use efficiency in rice is around

Last Answer : Ans.30-40%

Description : In low land rice, fertilizer is applied in

Last Answer : Ans.Reduced zone only

Description : The most important critical stage of rice for irrigation

Last Answer : Ans.Tillering to flowering stage

Description : The nitrogen fixing bacterium found on root surface of rice

Last Answer : Ans.Azospirillum

Description : For correction of iron chlorosis in rice, following spray is recommended

Last Answer : Ans.1%solution of ferrous sulphate

Description : The recommended dose of N, P and K for rice crop

Last Answer : Ans.100:60:40 kg ha–1

Description : The best fertilizer for top dressing in rice?

Last Answer : Ans.Ammonium sulphate

Description : Rice prefer nitrogen uptake in

Last Answer : Ans.Ammonical form (NH4 ).

Description : Most prominent cropping pattern of rice in India?

Last Answer : Ans.Rice-Wheat