نتایج جستجو برای: cropping system

تعداد نتایج: 2237513  

Journal: :WSEAS TRANSACTIONS ON ENVIRONMENT AND DEVELOPMENT 2021

Journal: :Japanese Journal of Farm Work Research 1984

Journal: :Crop and environment 2022

Spatially explicit global cropping system data products, which provide critical information on harvested areas, crop yields, and other management variables, are imperative to tackle current grand challenges such as food security climate change. These datasets also very useful for researchers they can support various scientific analyses in research projects. Yet, effectively searching, navigatin...

2012

Efficient utilization of existing water is a pressing need for Pakistan. Due to rising population, reduction in present storage capacity and poor delivery efficiency of 30 to 40% from canal. A study to evaluate an irrigation system in the cotton-wheat zone of Pakistan, after the watercourse lining was conducted. The study is made on the basis of cropping pattern and salinity to evaluate the sys...

2012
Adam S. Davis Jason D. Hill Craig A. Chase Ann M. Johanns Matt Liebman

Balancing productivity, profitability, and environmental health is a key challenge for agricultural sustainability. Most crop production systems in the United States are characterized by low species and management diversity, high use of fossil energy and agrichemicals, and large negative impacts on the environment. We hypothesized that cropping system diversification would promote ecosystem ser...

2016
Shulan Zhang Renjie Wang Xueyun Yang Benhua Sun Qinghui Li

Soil aggregation was studied in a 21-year experiment conducted on an Anthrosol. The soil management regimes consisted of cropland abandonment, bare fallow without vegetation and cropping system. The cropping system was combined with the following nutrient management treatments: control (CONTROL, no nutrient input); nitrogen, phosphorus and potassium (NPK); straw plus NPK (SNPK); and manure (M) ...

2016
Weiqin Wang Qian Chen Saddam Hussain Junhao Mei Huanglin Dong Shaobing Peng Jianliang Huang Kehui Cui Lixiao Nie

Double direct-seeding for double rice cropping is a simplified, labor saving, and efficient cropping system to improve multiple-crop index and total rice production in central China. However, poor crop establishment of direct-seeded early rice due to chilling stress is the main obstacle to wide spread of this system. A series of experiments were conducted to unravel the effects of pre-sowing se...

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