نتایج جستجو برای: fallow lands

تعداد نتایج: 12953  

Journal: : 2021

Soil samples and physical size-density fractions isolated from them (silt particle size less than 1 µm, light fraction (LF) with a density of 2 g/cm 3 the residue) ordinary chernozem were studied in three contrasting variants experimental fields Kamennaya Steppe agrolandscape Voronezh region: mowed steppe, long-term permanent bare fallow corn – main differences which are tillage (cultivated not...

2011
Ryan W. Higginbotham Stephen S. Jones Arron H. Carter

In Washington, over fifty percent of the wheat produced under rainfed conditions receives less than 300 mm of annual precipitation. Hence, a winter wheat-summer fallow cropping system has been adopted to obtain adequate moisture for winter wheat production. Current tilled fallow systems are exposed to significant soil degradation from wind and water erosion. As a result, late-planted no-till fa...

2017
Bhagawat Rimal Lifu Zhang Dongjie Fu Ripu Kunwar Yongguang Zhai Andrew Millington Harini Nagendra Monika Kopecka Karen C. Seto

The exodus of people from rural areas to cities brings many detrimental environmental, social and cultural consequences. Monitoring spatiotemporal change by referencing the historical timeline or incidence has become an important way to analyze urbanization. This study has attempted to attain the cross-sectional analysis of Kathmandu valley that has been plagued by rampant urbanization over the...

Journal: :desert 2008
h. r. azimzadeh m. r. ekhtesasi h. gh. refahi h. rohipour m. gorji

wind erosion is a significant problem on 20 million ha of iran, especially in central plains and coastal areas. winderosion samplers, meteorological equipments and measurement procedure have been developed over the last twocenturies to measure the particles moving across the field in modes of creep, saltation and suspension. in recentresearch as the first technical measurement in iran, wind ero...

Journal: :Agrica 2022

The fallow system is a of restoring soil fertility by leaving the uncultivated. Almost all traditional farming systems practice system. This study aims to determine chemical properties and level on Bera land in Wolokelo Village. Research with this exploratory method, sampling vegetable field without using period, period 5 years 10 years. was conducted from July October 2020. variables observed ...

Journal: :E3S web of conferences 2023

Development of virgin and fallow lands in Kazakhstan has highlighted a number problems the economy republic. Introduction huge territories into land turnover extreme conditions required search creation irrigation system North-Kazakhstan region. Authors note that region, having difficult natural-climatic caused by sharply continental climate, there was deficit fresh artesian water. Therefore, on...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید