+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Nutrient uptake by wheat and associated weeds as influenced by management practices



Nutrient uptake by wheat and associated weeds as influenced by management practices



Tropical Agriculture 69(4): 391-393



A field experiment was conducted during November-May 1984 and 1985 to evaluate the effect of row spacing, seed rate, sowing method and week control measures on the uptake of nutrients by different categories of weeds and the availability of nutrients to the crop. Closer row spacing, higher seed rate and cross-sowing significantly decreased the nutrient removal by grass and broad-leaf weeds, as well as by a sedge, compared with wider row spacing, normal seed rate and one-direction sowing, and resulted in higher nutrient uptake by the crop. Uncontrolled weeds over a period of 90 days depleted on average 69, 15 and 52 kg N, P and K ha-1, resulting in 48, 41, and 54% crop loss in N, P and K in weedy plots, compared with the crop in weed-free conditions. The uptake of nutrients was greatest in grass weeds and least in the sedge; broad-leaved weeds removed nutrients at a moderate rate. Isoproturon at 0.5 and 1.0 kg a.i. ha-1 reduced the nutrient removal by the different weed categories appreciably, leading to increase in nutrient uptake by the crop.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 002172836

Download citation: RISBibTeXText


Related references

Nutrient uptake (N, P and K) by weeds and crop as influenced by weed management practices in late-planted sugarcane. Indian Journal of Sugarcane Technology 17(1/2): 72-74, 2002

Nutrient uptake by weeds and barley (Hordeum vulgare L.) cultivars as influenced by weed management practices. Annals of Agri Bio Research 8(1): 9-11, 2003

Nutrient uptake by weeds as influenced by organic manures, inorganic fertilizers and weed management practices in soybean Merrill. Acta Agronomica Hungarica 48(2): 141-148, 2000

Nutrient uptake by wheat (Triticum aestivum) and associated weeds as influenced by fertilizer levels and weed management. Indian Journal of Weed Science 32(1/2): 31-34, 2000

Nutrient uptake by wheat and Phalaris minor as influenced by weed management practices. Agricultural Science Digest 23(3): 195-198, 2003

Nutrient uptake by crop and weeds as influenced by integrated weed management practices in groundnut (Arachis hypogaea L.) based cropping system. Research on Crops 1(2): 159-162, 2000

Nutrient uptake by weeds in wheat as influenced by irrigation, weedicides and fertility levels. Abstracts of papers, annual conference of Indian Society of Weed Science, 1985: 34, .

Population, biomass and nutrient uptake of weeds in sunflower as influenced by weed management. Annals of Agricultural Research 24(2): 444-446, 2003

Nutrient uptake by weeds and crop as influenced by integrated weed management in groundnut. Farming Systems 9(3-4): 119-122, 1993

Effect of weed management practices on the nutrient uptake of sunflower and its associated weeds. New Agriculturist 6(1): 77-79, 1995

Nutrient uptake by pea (Pisum sativum L.) and associated weeds under different weed management practices. Integrated weed management for sustainable agriculture Proceedings of an Indian Society of Weed Science International Symposium, Hisar, India, 18-20 November 1993 (Vol. II): 49-51, 1993

Nutrient uptake and quality of rice as influenced by different nitrogen management practices. Research on Crops 4(3): 291-294, 2003

Uptake of nutrients by upland rice and associated weeds as influenced by nitrogen application schedules and weed management practices. Crop Research Hisar 3(2): 144-150, 1990

The effect of weed management practices on nutrient uptake of weeds in sweet potato. Orissa Journal of Horticulture 30(2): 110-112, 2002

Effect of integrated weed management practices on nutrient uptake by sunflower and associated weeds. Madras Agricultural Journal 76(4): 227-228, 1989