scholarly journals Trends and Variability of Wheat Crop in Pakistan

2019 ◽  
Vol 8 (2) ◽  
pp. 153-159
Author(s):  
Saleem Abid ◽  
M Asif Masood ◽  
M Zubair Anwar ◽  
Saleem Zahid ◽  
Irum Raza
Keyword(s):  
Growth Rate ◽  
Wheat Yield ◽  
Wheat Crop ◽  
Wheat Production ◽  
Khyber Pakhtunkhwa ◽  
Trend Model ◽  
Punjab Province ◽  
New Varieties ◽  
Khyber Pakhtunkhwa Province

The main focus of the study was to analyze trends and variability of wheat crop in Pakistan. Semi-log trend model was used to find trends and growth rate in area, yield and production of wheat crop whereas the variability was measured by Cuddy-Della Valle index of variability. The findings of the study illustrate that wheat area in Punjab, Sindh and Baluchistan was increased over the time whereas cultivated area of wheat in Khyber Pakhtunkhwa province was marginally decreased during 1981-85 to 2011-15. The results show that there was substantial increase in wheat yield and production in all four provinces of Pakistan. The increase in wheat yield may due to the adoption of new varieties of wheat in the country over the time. It was also concluded from the results that area and yield of wheat in Baluchistan recorded the highest degree of variability whereas in Punjab province area and yield of wheat crop were noticed the lowest degree of variability. Similarly, the maximum variability in wheat production was recorded for Baluchistan province followed by Sindh, Khyber Pakhtunkhwa, and Punjab. Mostly the variability in wheat production was due to the variability in wheat area and their yield.

scholarly journals Impact of Price and Price Variability on Acreage Allocation in Rice and Wheat Production in Bangladesh

2012 ◽  
Vol 10 (1) ◽  
pp. 23-30
Author(s):  
Basanta Kumar Barmon ◽  
Muntasir Chaudhury
Keyword(s):  
Growth Rate ◽  
Time Series ◽  
Time Series Data ◽  
Wholesale Price ◽  
Series Data ◽  
Wheat Crop ◽  
Price Variability ◽  
Wheat Production ◽  
Long Run ◽  
Short Run

The present study was conducted to estimate the impacts of price and price variability on acreage allocation of rice and wheat production in Bangladesh. Time series data of price and acreage allocation of rice and wheat production during 1983-84 to 2007-08, collected from Bangladesh Bureau of Statistics (BBS) were used in this study. Compound growth rate and Nerlovian models were used. The study indicated that the wholesale price of rice and wheat had significant impact on the allocation of land for rice and wheat production. Significant price variability was found both in case of rice and wheat crop in short-run (SR) and long-run (LR). The values of Nerlovian coefficients of adjustment were found low, which means that although the farmers were adjusting to the changing levels of price, price variability, yield, etc the adjustment was not rapid. Therefore, it may be concluded that the price of rice and wheat should be adjusted rapidly along with allocation of rice and wheat production in Bangladesh.DOI: http://dx.doi.org/10.3329/agric.v10i1.11061The Agriculturists 2012; 10(1): 23-30

Effects of lupin on soil properties and wheat production

1993 ◽  
Vol 44 (8) ◽  
pp. 1971 ◽  
Author(s):  
KY Chan ◽  
DP Heenan
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Properties ◽  
Soil Water ◽  
Wheat Yield ◽  
Soil Water Storage ◽  
Wheat Crop ◽  
Wagga Wagga ◽  
Organic Carbon Content ◽  
Wheat Production

Effect of lupin on wheat production and soil properties was evaluated on a red earth, at Wagga Wagga, N.S.W. Soil physical and chemical properties as well as soil surface aggregate stability, soil water distribution and extraction by wheat crops from a 10-year-old wheat/lupin (WL) rotation were compared with those of continuous wheat (WW), with (WW+N) and without (WW-N) nitrogen fertilizer application. Averaged wheat yield over the 1989-1990 period was 4.17, 2.95 and 3.06 t ha-1 respectively for WL, WW-N and WW+N. Despite the higher yield, important changes in soil properties have been detected in the soil under wheat/lupin rotation when compared with that under continuous wheat. The major effect was surface soil acidification and an associated loss of cations. Ten years of WL, compared with WW-N resulted in 0.2 unit reduction in pH (4 -35 v. 4.55) in 0.10-0.15 m with corresponding increases in extractable A1 and losses in exchangeable Ca2+ (17% as present in WW-N) and Mg+2 (12%). In the continuous wheat, annual application of 100 kg N ha-1 as urea resulted in much greater acidification (by 0.48 pH unit from 4.63 to 4.15 at 0.05-0.10 m) and larger losses in Ca2+ (up to 40%) and Mg2+ (up to 52%) in the top 0.2 m. Ten years of WL rotation reduced K+ by 10% in the top 0.2 m layer compared with both of the continuous wheat rotations, presumably due to higher export of K in lupin grains. Inclusion of lupin in the rotation also resulted in differences in the quality of soil organic matter. Despite similar total soil organic carbon content to WW-N, in the top 0.1 m, soil organic matter under WL had lower C/N ratio and higher polysaccharide content. Lower macroaggregate stability was found under WL compared to WW-N, but this did not result in lower soil water storage over the summer fallow during the two seasons of measurement. However, the wheat crop under WW utilized less stored subsoil water than that under WL, even under conditions of moisture stress.

scholarly journals Wheat Production under Long-term Application of Inorganic and Organic Fertilizers in Rice-Wheat System under Rainfed Conditions

2014 ◽  
Vol 9 ◽  
pp. 40-48
Author(s):  
Suresh K. Rai ◽  
Yajna G. Khadka
Keyword(s):  
Soil Fertility ◽  
Wheat Variety ◽  
Wheat Yield ◽  
Alluvial Soil ◽  
Residual Effect ◽  
Organic Fertilizers ◽  
Wheat Crop ◽  
Available Phosphorus ◽  
Wheat Production ◽  
Inorganic And Organic

Under rainfed rice-wheat cropping system, experiments were conducted on wheat variety Annapurna-2 from 1998 to 2002 to study the effect of continuous application of inorganic and organic fertilizers in longer run on wheat production and soil properties in alluvial soil of Khumaltar, Lalitpur at 1365 msal. Eleven different fertilizers combinations comprised of inorganic  and organic fertilizers were used. The results of the five-year experiment  indicate that the applications of optimal level of inorganic fertilizers could  supply the plant nutrients to wheat crop to produce sustainable yield. On the other hand, organic fertilizers could help to increase the crop yield and maintain soil fertility at the same time. Residual effect of available  phosphorus applied in previous rice crop had significant response on wheat yield. For maintaining soil fertility, application of FYM and incorporation of  crop residue into soil are worth practicable.Nepal Agric. Res. J. Vol. 9, 2009, pp. 40-48DOI: http://dx.doi.org/10.3126/narj.v9i0.11640

scholarly journals Analyzing the Climate Change Impact and Farmer’s Adaptability Strategies in Khyber Pakhtunkhwa, Pakistan

Proceedings ◽  
2020 ◽  
Vol 36 (1) ◽  
pp. 215
Author(s):  
Khuram Nawaz Sadozai ◽  
Munawar Raza Kazmi ◽  
Muhammad Israr Khan ◽  
Sonia Sonia
Keyword(s):  
Climate Change ◽  
Climate Change Impact ◽  
Management Practices ◽  
Wheat Yield ◽  
Adaptation Strategies ◽  
Climatic Variables ◽  
Primary Data ◽  
Wheat Crop ◽  
Khyber Pakhtunkhwa ◽  
Change Impact

The agriculture sector is deemed as more vulnerable to climate change as its variation can directly affect the crop’s productivity. However, climate change impact and farmers adaptation strategies were not figured out in Khyber Pakhtunkhwa Province, Pakistan by previous researchers and formed the rationale for this research endeavor. This research has assessed the Climate Change impact on wheat productivity and farmers adaptability strategies. The non-climatic variables (wheat yield and area under wheat cultivation) and climatic variables (temperature, precipitation and humidity) were taken into consideration. The Panel Data of thirty years (1985–2015) about non climatic and climatic variables was obtained from different secondary sources; however, primary data was collected from sampled farmers. The econometric diagnostic tests were encompassed to confirm the validity of the data. Chow test was used to underscore the structural breaks. Fixed Effect Model was adopted as suggested by Hausman Test. The salient findings express that temperature has inverse relationship with wheat productivity. This implies that by soaring one Celsius degree Centigrade (°C) temperature can plunge down the wheat productivity by 0.074 percent. Similarly, the association of precipitation was also observed negative with wheat. Contrary to this, humidity is observed as positively associated with wheat. The study concludes the substantial association of climate change with wheat crop, whereas, farmers had less awareness about the adoptability strategies. It is recommended that high temperature resistant wheat varieties may be provided to farmers and disseminates the exalted adaptation strategies with respect to climate change to overhaul their existing crop management practices.

Extent of Knowledge and Adoption of Recommended Wheat Production Practicesamong Wheat Growers in Malwa Region (M.P.)

2022 ◽  
Vol 58 (1) ◽  
pp. 40-43
Author(s):  
Mangi Lal Jat ◽  
D. K. Jaiswal ◽  
Y.S. Saharawat
Keyword(s):  
Production Technology ◽  
Wheat Crop ◽  
Knowledge Level ◽  
Crop Cultivation ◽  
Wheat Production ◽  
Medium Level ◽  
Long Time ◽  
New Varieties ◽  
Production Practices ◽  
Staple Diet

Wheat is an important source of nutrition in our staple diet. Although farmers in northernIndia are growing wheat for a long time many farmers are lacking good knowledge of wheatand its new varieties production practices. The study was conducted to know the extentof knowledge and adoption of recommended wheat production practices among wheatcultivating farmers of the Malwa region. Nine farmers (3 big, 3 medium and 3 small farmers)were selected randomly from each (thirty-six) selected village of nine blocks of Hosangabad,Hadra and Sehore districts making a total of 324 wheat growers. Among the practicewiselevel of knowledge regarding recommended wheat production technology;method of storage(mean score- 2.30) was ranked first and selection and preparation of land (mean score-2.25) was ranked second. On the whole, the highest number of the wheat growers (46.29%)had a medium knowledge level of recommended wheat production practices while 41.66%had a medium level of adoption on thebasis of their level of adoption of recommendedtechnological practices of wheat crop cultivation.

scholarly journals Mapping Wheat Dry Matter and Nitrogen Content Dynamics and Estimation of Wheat Yield Using UAV Multispectral Imagery Machine Learning and a Variety-Based Approach: Case Study of Morocco

2021 ◽  
Vol 3 (1) ◽  
pp. 29-49
Author(s):  
Ghizlane Astaoui ◽  
Jamal Eddine Dadaiss ◽  
Imane Sebari ◽  
Samir Benmansour ◽  
Ettarid Mohamed
Keyword(s):  
Random Forest ◽  
Nitrogen Uptake ◽  
Dry Matter ◽  
Vegetation Indices ◽  
Wheat Yield ◽  
Wheat Crop ◽  
Multispectral Imagery ◽  
Biophysical Parameters ◽  
Phenological Stages ◽  
Wheat Varieties

Our work aims to monitor wheat crop using a variety-based approach by taking into consideration four different phenological stages of wheat crop development. In addition to highlighting the contribution of Red-Edge vegetation indices in mapping wheat dry matter and nitrogen content dynamics, as well as using Random Forest regressor in the estimation of wheat yield, dry matter and nitrogen uptake relying on UAV (Unmanned Aerial Vehicle) multispectral imagery. The study was conducted on an experimental platform with 12 wheat varieties located in Sidi Slimane (Morocco). Several flight missions were conducted using eBee UAV with MultiSpec4C camera according to phenological growth stages of wheat. The proposed methodology is subdivided into two approaches, the first aims to find the most suitable vegetation index for wheat’s biophysical parameters estimation and the second to establish a global model regardless of the varieties to estimate the biophysical parameters of wheat: Dry matter and nitrogen uptake. The two approaches were conducted according to six main steps: (1) UAV flight missions and in-situ data acquisition during four phenological stages of wheat development, (2) Processing of UAV multispectral images which enabled us to elaborate the vegetation indices maps (RTVI, MTVI2, NDVI, NDRE, GNDVI, GNDRE, SR-RE et SR-NIR), (3) Automatic extraction of plots by Object-based image analysis approach and creating a spatial database combining the spectral information and wheat’s biophysical parameters, (4) Monitoring wheat growth by generating dry biomass and wheat’s nitrogen uptake model using exponential, polynomial and linear regression for each variety this step resumes the varietal approach, (5) Engendering a global model employing both linear regression and Random Forest technique, (6) Wheat yield estimation. The proposed method has allowed to predict from 1 up to 21% difference between actual and estimated yield when using both RTVI index and Random Forest technique as well as mapping wheat’s dry biomass and nitrogen uptake along with the nitrogen nutrition index (NNI) and therefore facilitate a careful monitoring of the health and the growth of wheat crop. Nevertheless, some wheat varieties have shown a significant difference in yield between 2.6 and 3.3 t/ha.

scholarly journals WATER USE EFFICIENCY, GROWTH AND YIELD OF WHEAT CULTIVATED UNDER COMPETITION WITH Setaria

2015 ◽  
Vol 33 (4) ◽  
pp. 679-687 ◽  
Author(s):  
M.Z. IHSAN ◽  
F.S. EL-NAKHLAWY ◽  
S.M. ISMAIL
Keyword(s):  
Drought Stress ◽  
Water Use Efficiency ◽  
Water Use ◽  
Harvest Index ◽  
Wheat Yield ◽  
Negative Association ◽  
Growth And Yield ◽  
Yield Losses ◽  
Wheat Production ◽  
Use Efficiency

ABSTRACT Understanding the critical period of weed competition is indispensable in the development of an effective weed management program in field crops. Current experiment was planned to evaluate the critical growth period ofSetaria and level of yield losses associated with delay in weeding in rain-fed drip irrigated wheat production system of Saudi Arabia. Field experiment was conducted to evaluate the effect of weeding interval (07-21, 14-28, 21-35, 28-42 and 35-49 days after sowing) and drought stress (75% and 50% of field capacity) on Setaria growth, wheat yield and water use efficiency. Season long weedy check and wellwatered (100% FC) plots were also maintained for comparison. Weeding interval and drought stress significantly (p ≤ 0.05) affected the growth and yield of Setaria and wheat. Drought stress from 75% to 50% FC resulted in reductions of 29-40% in Setaria height, 14-27% in Setaria density and 11-26% in Setaria dry biomass. All weeding intervals except 35-49 DAS significantly suppressedSetaria growth as compared with control. Delay in weeding increased weed-crop competition interval and reduced wheat yield and yield contributors. Therefore, the lowest yield of 1836 kg ha-1 was attained for weeding interval of 35-49 DAS at 50% FC. Water use efficiency and harvest index increased with decreasing FC levels but reduced with delay in weeding. Correlation analysis predicted negative association ofSetariadensity with wheat yield and yield contributors and the highest negative association was for harvest index (-0.913) and water use efficiency (-0.614). Early management of Setaria is imperative for successful wheat production otherwise yield losses are beyond economical limits.

Italian Ryegrass (Lolium Multiflorum) Management Options in Winter Wheat in Oklahoma

2007 ◽  
Vol 21 (1) ◽  
pp. 151-158 ◽  
Author(s):  
Chad S. Trusler ◽  
Thomas F. Peeper ◽  
Amanda E. Stone
Keyword(s):  
Winter Wheat ◽  
Plant Density ◽  
Control Strategies ◽  
Lolium Multiflorum ◽  
Wheat Yield ◽  
Italian Ryegrass ◽  
Wheat Crop ◽  
Management Options ◽  
Spike Density ◽  
Herbicide Treatments

An experiment was conducted at three sites in central Oklahoma to compare the efficacy of Italian ryegrass management options in no-till (NT) and conventional tillage (CT) winter wheat. The Italian ryegrass management options included selected herbicide treatments, wheat-for-hay, and a rotation consisting of double-crop soybean seeded immediately after wheat harvest, followed by early season soybean, and then by wheat. In continuous wheat, before application of glyphosate or tillage, Italian ryegrass plant densities in mid-September were 12,300 to 15,000 plants/m2in NT plots vs. 0 to 500 plants/m2in CT plots. When applied POST, diclofop controlled more Italian ryegrass than tralkoxydim or sulfosulfuron. In continuous wheat, yields were greater in CT plots than in NT plots at two of three sites. None of the Italian ryegrass management options consistently reduced Italian ryegrass density in the following wheat crop. Of the Italian ryegrass control strategies applied to continuous wheat, three herbicide treatments in NT at Chickasha and all treatments in NT at Perry reduced Italian ryegrass density in the following wheat crop. Italian ryegrass plant density in November and spike density were highly related to wheat yield at two and three sites, respectively. No management options were more profitable than rotation to soybean.

Sign in / Sign up

Export Citation Format

Share Document