Application of Rye Green Manure in Wheat Rotation System Alters Soil Water Content and Chemical Characteristics under Dryland Condition in Maragheh

A study about the effect of humic substance and green manure on soil physical characteristics and cassava production was conducted on a Sandy loam soil in Sukadana-East Lampung. Humic substance was obtained from Proper Humic, whereas green manure was obtained from crop residue and weed surrounding the experimental site. Humic substance applied was 15 liters ha-1 and green manure applied was 2 tons ha-1. The result of the experiment indicated that in general, humic substance and green manure applied had no significant effect on soil physical characteristics. However, there was a tendency that water content at field capacity (pF 2.54) and water available capacity increased as humic substance and green manure were applied. Similar tendency was also observed for water retained in soil where field soil water content at 7 consecutive no-raindays was slightly higher at soil with humic substance and green manure. With the application of humic substance and green manure, soil could hold water in a longer time. The effect of green manure on field soil water content was, however, slightly better than that of humic substance. Nevertheless, application of humic substance 15 l ha-1 increased significantly cassava growth and production and the effect was better than those from green manure with the dosage of 2 ton ha-1. Key words: cassava production, humic substance, water retention

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The Structure and Diversity of Nitrogen Functional Groups from Different Cropping Systems in Yellow River Delta

Microorganisms ◽

10.3390/microorganisms8030424 ◽

2020 ◽

Vol 8 (3) ◽

pp. 424 ◽

Cited By ~ 3

Author(s):

Huan He ◽

Yongjun Miao ◽

Lvqing Zhang ◽

Yu Chen ◽

Yandong Gan ◽

...

Keyword(s):

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Yellow River ◽

Cropping Systems ◽

Yellow River Delta ◽

N Cycling ◽

River Delta ◽

Ammonia Oxidizer ◽

Rotation System

The Yellow River Delta (YRD) region is an important production base in Shandong Province. It encompasses an array of diversified crop systems, including the corn–wheat rotation system (Wheat–Corn), soybean–corn rotation system (Soybean–Corn), fruits or vegetables system (Fruit), cotton system (Cotton) and rice system (Rice). In this study, the communities of ammonia oxidizer–, denitrifier– and nitrogen (N)–fixing bacteria in those cropping systems were investigated by Illumina Miseq sequencing. We found that Rice soil exhibited significantly higher diversity indices of investigated N–cycling microbial communities than other crop soils, possibly due to its high soil water content. Wheat–Corn soils had higher abundances of nitrification gene amoA and denitrification genes nirK and nirS, and exhibited higher soil potential nitrification rate (PNR), compared with Soybean–Corn, Cotton and Fruit soils. Consistently, redundancy analysis (RDA) showed that soil water content (SWC), electrical conductivity (EC), and total nitrogen (TN) were the most important influencing factors of the diversity and structure of the investigated N–cycling microbial.

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SOIL WATER CONTENT AFFECTS THE AVAILABILITY OF PHOSPHATE

Proceedings of the New Zealand Grassland Association ◽

10.33584/jnzg.1985.46.1696 ◽

1985 ◽

pp. 185-189

Author(s):

M.C.H.Mouat Pieter Nes

Keyword(s):

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Soil Solution ◽

Equivalent Reduction

Reduction in water content of a soil increased the concentration of ammonium and nitrate in solution, but had no effect on the concentration of phosphate. The corresponding reduction in the quantity of phosphate in solution caused an equivalent reduction in the response of ryegrass to applied phosphate. Keywords: soil solution, soil water content, phosphate, ryegrass, nutrition.

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Effect of inter-row cultivation on soil carbon dioxide emission in a peach plantation

Agrokémia és Talajtan ◽

10.1556/agrokem.59.2010.1.19 ◽

2010 ◽

Vol 59 (1) ◽

pp. 157-164 ◽

Cited By ~ 1

Author(s):

E. Tóth ◽

Cs. Farkas

Keyword(s):

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Carbon Dioxide Emission ◽

Nutrient Content ◽

Soil Disturbance ◽

Biological Properties ◽

Soil Tillage ◽

Favourable Effect ◽

Volumetric Soil Water Content

Soil biological properties and CO2emission were compared in undisturbed grass and regularly disked rows of a peach plantation. Higher nutrient content and biological activity were found in the undisturbed, grass-covered rows. Significantly higher CO2fluxes were measured in this treatment at almost all the measurement times, in all the soil water content ranges, except the one in which the volumetric soil water content was higher than 45%. The obtained results indicated that in addition to the favourable effect of soil tillage on soil aeration, regular soil disturbance reduces soil microbial activity and soil CO2emission.

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Evaluation of a Multi-Rod Probe Performance for Accurate Measurements of Soil Water Content

2020 Baltic URSI Symposium (URSI) ◽

10.23919/ursi48707.2020.9254059 ◽

2020 ◽

Author(s):

Justyna Szerement ◽

Aleksandra Woszczyk ◽

Agnieszka Szyplowska ◽

Marcin Kafarski ◽

Arkadiusz Lewandowski ◽

...

Keyword(s):

Water Content ◽

Soil Water ◽

Soil Water Content

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Effects of soil water content and temperature on Bt protein degradation in leaves at thinning stage and buds of Bt cotton

CHINESE JOURNAL OF ECO-AGRICULTURE ◽

10.3724/sp.j.1011.2014.30974 ◽

2014 ◽

Vol 22 (3) ◽

pp. 300-307

Author(s):

Meijun ZHANG ◽

Wude YANG ◽

Meichen FENG ◽

Yun DUAN ◽

Mingming TANG ◽

...

Keyword(s):

Protein Degradation ◽

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Bt Cotton ◽

Bt Protein

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Use of storage water in Larix principis-ruprechtii and its response to soil water content and potential evapotranspiration: a modeling analysis

Chinese Journal of Plant Ecology ◽

10.3724/sp.j.1258.2011.00411 ◽

2011 ◽

Vol 35 (4) ◽

pp. 411-421 ◽

Cited By ~ 3

Author(s):

Lin SUN ◽

Wei XIONG ◽

Wei GUAN ◽

Yan-Hui WANG ◽

Li-Hong XU

Keyword(s):

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Potential Evapotranspiration ◽

Modeling Analysis

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Evapotranspiration Measurement and Irrigation Scheduling for Several Tropical Fruit Crops Using the EnviroScan System

HortScience ◽

10.21273/hortsci.33.3.549f ◽

1998 ◽

Vol 33 (3) ◽

pp. 549f-550

Author(s):

Mongi Zekri ◽

Bruce Schaffer ◽

Stephen K. O'Hair ◽

Roberto Nunez-Elisea ◽

Jonathan H. Crane

Keyword(s):

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Water Use ◽

National Parks ◽

Quantitative Information ◽

Irrigation Scheduling ◽

Management Tool ◽

Fruit Crops ◽

Tropical Fruit

In southern Florida, most tropical fruit crops between Biscayne and Everglades National Parks are irrigated at rates and frequencies based on experience and observations of tree growth and fruit yield rather than on reliable quantitative information of actual water use. This approach suggests that irrigation rates may be excessive and could lead to leaching of agricultural chemicals into the groundwater in this environmentally sensitive area. Therefore, a study is being conducted to increase water use efficiency and optimize irrigation by accurately scheduling irrigation using a very effective management tool (EnviroScan, Sentek Environmental Innovations, Pty., Kent, Australia) that continuously monitors soil water content with highly accurate capacitance multi-sensor probes installed at several depths within the soil profile. The system measures crop water use by monitoring soil water depletion rates and allows the maintenance of soil water content within the optimum range (below field capacity and well above the onset of plant water stress). The study is being conducted in growers' orchards with three tropical fruit crops (avocado, carambola, and `Tahiti' lime) to facilitate rapid adoption and utilization of research results.

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