RECLAMATION OF IRRIGATED LANDS OF SYRDARYA REGION EFFECT OF CONDITION ON AUTUMN WHEAT GRAIN YIELD

2020 ◽  
Vol 6 (2) ◽  
pp. 69-75
Author(s):  
Sabirjan Isayev ◽  
◽  
Elyor Malikov ◽  
Azim Gofirov
Keyword(s):  
Water Resources ◽  
Soil Fertility ◽  
Grain Yield ◽  
Soil Salinity ◽  
Groundwater Level ◽  
Water Scarcity ◽  
Wheat Grain ◽  
Irrigated Lands ◽  
Groundwater Mineralization ◽  
Region Effect

This article focuses on improving the reclamation of irrigated lands in Syrdarya region, increasing soil fertility, efficient use of available water resources in the context of water scarcity, irrigated land in the region from 2013 to 2019, groundwater level, groundwater mineralization, drainage results of data on reconstruction, soil salinity and winter wheat grain yield over the years

Winter wheat grain yield in response to different production practices and soil fertility in northern China

2018 ◽  
Vol 176 ◽  
pp. 10-17 ◽  
Author(s):  
Lifang Wang ◽  
Jutao Sun ◽  
Zhengbin Zhang ◽  
Ping Xu ◽  
Zhouping Shangguan
Keyword(s):  
Winter Wheat ◽  
Soil Fertility ◽  
Grain Yield ◽  
Northern China ◽  
Wheat Grain ◽  
Production Practices

scholarly journals Sustaining Wheat Productivity and Maintaining Soil Fertility in Maize-Wheat System

1970 ◽  
pp. 31-36
Author(s):  
Bhaba P Tripathi ◽  
Junu K Tuladhar
Keyword(s):  
Soil Fertility ◽  
Grain Yield ◽  
Organic Material ◽  
Field Experiments ◽  
Organic Materials ◽  
P Uptake ◽  
Research Station ◽  
Wheat Grain ◽  
High Quality ◽  
Total N

Field experiments on maize-wheat system were carried out in rainfed upland (bari) at Agricultural Research Station, Lumle for three years (1994/95-1996/97) to determine the effect of different quality organic materials on maize and wheat yields and soil properties. Wheat grain yield significantly differed over years and the highest mean grain yield (1.98 t ha-1) was recorded in the treatment of mixture of low and high quality organic materials (maize + leaf litter, farmyard manure). Maize and wheat grain as well as straw yield significantly differed over years. In all the three years, the mixture of low and high quality organic materials produced the highest grain yield of maize plus wheat ranging from 6.72 to 2.20 t ha-1 with mean yield of 4.43 t ha-1. Mean N uptake by wheat grain and straw ranged from 32.2 to 40.4 kg ha-1 and 13.8 to 16.0 kg ha-1, respectively in different treatments. Similarly, mean P uptake by wheat grain was the highest (25.4 kg ha-1) in the mixture treatment while mean P uptake by wheat straw was the highest (26.5 kg ha-1) in low quality organic materials. Mean soil pH after wheat harvest was the lowest (5.1) in the low quality organic material. Organic carbon and available P ranged from 3.4 to 3.7% and from 329 to 370 ppm, respectively in different treatments while total N and exchangeable K increased to 0.31% and 0.2 me/100g, respectively with the application of low quality organic material. The three years result showed that semi-decomposed organic materials were more efficient in improving and stabilizing production of wheat and maize yields in maize-wheat system as well as in maintaining N fertility than high quality organic materials.Key words: Maize-wheat system; Organic materials; Soil fertility; SustainabilityDOI: http://dx.doi.org/10.3126/narj.v4i0.4861Nepal Agriculture Research Journal Vol. 4&5, 2001/2002Page: 31-36Uploaded date: 8 June, 2011

Ensuring access to water in an emergency context: Towards an overexploitation and contamination of water resources?

2021 ◽  
pp. 096466392110316
Author(s):  
Chloé Nicolas-Artero
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Qualitative Methods ◽  
Water Scarcity ◽  
Water Rights ◽  
Environmental Crisis ◽  
Supply Network ◽  
Mining Pollution ◽  
Access To Water

This article shows how geo-legal devices created to deal with environmental crisis situations make access to drinking water precarious and contribute to the overexploitation and contamination of water resources. It relies on qualitative methods (interviews, observations, archive work) to identify and analyse two geo-legal devices applied in the case study of the Elqui Valley in Chile. The first device, generated by the Declaration of Water Scarcity, allows private sanitation companies to concentrate water rights and extend their supply network, thus producing an overexploitation of water resources. In the context of mining pollution, the second device is structured around the implementation of the Rural Drinking Water Programme and the distribution of water by tankers, which has made access to drinking water more precarious for the population and does nothing to prevent pollution.

Long-term liming improves soil fertility and soybean root growth, reflecting improvements in leaf gas exchange and grain yield

2021 ◽  
Vol 128 ◽  
pp. 126308
Author(s):  
João William Bossolani ◽  
Carlos Alexandre Costa Crusciol ◽  
José Roberto Portugal ◽  
Luiz Gustavo Moretti ◽  
Ariani Garcia ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Root Growth ◽  
Soil Fertility ◽  
Grain Yield ◽  
Leaf Gas Exchange ◽  
Soybean Root

scholarly journals Water Use Efficiencies of Different Maturity Group Soybean Cultivars in the Humid Mississippi Delta

Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1496
Author(s):  
Srinivasa R. Pinnamaneni ◽  
Saseendran S. Anapalli ◽  
Daniel K. Fisher ◽  
Krishna N. Reddy
Keyword(s):  
Glycine Max ◽  
Water Resources ◽  
Experimental Design ◽  
Grain Yield ◽  
Water Use ◽  
Production System ◽  
Mississippi Delta ◽  
Maturity Group ◽  
Glycine Max L ◽  
Water Use Efficiencies

Introducing alternative cultivars with enhanced water use efficiencies can help alleviate pressure on groundwater for crop irrigations in Mississippi (MS) Delta. A two-year field study was conducted in 2019–2020 to compare the water use efficiencies (WUE) of recently released and pre-released soybean {Glycine max (L.) Merr.} cultivars in maturity group (MG) III (‘P37A78’, ‘LG03-4561-14’), IV (‘Dyna-gro 4516x’, ‘DS25-1, DT97-4290’), and V (‘S12-1362’, ‘S14-16306’) in the MS Delta. The experimental design was a split-plot with cultivar as the first factor and the second factor was water variant irrigation (IR) and no irrigation (RF, rainfed), replicated three times. The MG IV cultivar Dyna-gro 4516x recorded the highest grain yield and WUE: grain yields were 4.58 Mg ha−1 and 3.89 Mg ha−1 under IR and RF, respectively in 2019, and 4.74 Mg ha−1 and 4.35 Mg ha−1 in 2020. The WUE were 7.2 and 6.9 kg ha−1 mm−1, respectively, in 2019 under IR and RF, and 13.4 and 16.9 kg ha−1 mm−1 in 2020. The data reveals that ‘Dyna-gro 4516x’ (MG IV), ‘LG03-4561-14’ (MG III), and ‘P37A78’ (MG III) are best adapted to the early soybean production system (ESPS) in MS Delta region for sustainable production for conserving water resources.

Comparisons of sensors to predict spring Wheat grain yield and protein content

2021 ◽  
Author(s):  
Donald Veverka ◽  
Amitava Chatterjee ◽  
Melissa Carlson
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Wheat Grain
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