Zobrazeno 1 - 10
of 703
pro vyhledávání: '"partial factor"'
Autor:
V. V. Nadolski
Publikováno v:
Vestnik MGSU, Vol 19, Iss 9, Pp 1444-1453 (2024)
Introduction. The method of reliability coefficients with fixed values (declared in regulatory documents) is used as a basic method of limit state verification. However, there is a more general formulation of the semi-probabilistic method, within whi
Externí odkaz:
https://doaj.org/article/f8c8ca8cdfa649ff8a8cc4ec3eb591f6
Publikováno v:
Guan'gai paishui xuebao, Vol 43, Iss 7, Pp 11-18 (2024)
【Objective】 Irrigation and nitrogen fertilization are critical to maintaining agricultural production in most regions in China. The purpose of this paper is to investigate the effect of water-nitrogen coupling under different irrigation methods o
Externí odkaz:
https://doaj.org/article/bdc19758ddec4f1eb56df513ac0aaf2f
Publikováno v:
Guan'gai paishui xuebao, Vol 43, Iss 3, Pp 19-26 (2024)
【Background and Objective】 Northwestern China is the national hub of potato production, with irrigation and fertilization being the key factors affecting the yield, water and fertilizer use efficiency of the potato. The objective of the paper is
Externí odkaz:
https://doaj.org/article/2c2ff8b66f4940f79526f3cd5c7d4644
Publikováno v:
Agricultural Water Management, Vol 298, Iss , Pp 108850- (2024)
Irrigation and fertilization are the main measures used by farmers to maintain crop yield and quality, especially in arid and semi-arid regions. To investigate the compensation of cotton yield loss due to deficit drip irrigation in non-mulched fields
Externí odkaz:
https://doaj.org/article/e6dc990843094c5080ece3440ea6e36b
Autor:
George A. Awuni, Darrin M. Dodds, Daniel B. Reynolds, Peter A. Asungre, Iddrisu Yahaya, George Y. Mahama, Thomas Bella, Simon Abongo, Peter D. Goldsmith
Publikováno v:
Frontiers in Agronomy, Vol 6 (2024)
IntroductionPhosphorus (P) and potassium (K) deficiencies are increasingly being reported in Ghana’s interior savanna soils. Smallholder farmers consider soybeans as a “zero-input” crop resulting in low yields and profitability. Studies indicat
Externí odkaz:
https://doaj.org/article/27f0501fa69546ccb4a6399a06d47510
Autor:
Pingru He, Shuang’en Yu, Jihui Ding, Tao Ma, Jin’gang Li, Yan Dai, Kaiwen Chen, Suhan Peng, Guangquan Zeng, Shuaishuai Guo
Publikováno v:
Agricultural Water Management, Vol 297, Iss , Pp 108840- (2024)
Aiming at the problems of reduced winter wheat yield and aggravation of nitrogen leaching pollution caused by the waterlogging in the Middle-Lower Yangtze Plain, China, a two-year field experiment with three farmland water levels (W40, W60, W80) and
Externí odkaz:
https://doaj.org/article/00844a584c9e45c7b1be1bfca127d886
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 47 (2024)
A large number of post-tensioned concrete bridges were built in the second half of the last century. They have often been insufficiently maintained during their lifetime (usually around 50 years). Nowadays, these structures exhibit significant deteri
Externí odkaz:
https://doaj.org/article/58c9def6fb84458885becbed7fa73c62
Autor:
Xuchen Liu, Junming Liu, Chao Huang, Huihao Liu, Ye Meng, Haiqing Chen, Shoutian Ma, Zhandong Liu
Publikováno v:
Agricultural Water Management, Vol 295, Iss , Pp 108765- (2024)
Long-term rotary tillage limit water infiltration and crop productivity in North China Plain (NCP). The practice of subsoiling to fracture plow pans has made beneficial impacts on soil surface structure and water infiltration. Further, appropriate ir
Externí odkaz:
https://doaj.org/article/be553be916364ff6ac367bbd09519d28
Autor:
Yonglin Jia, Zhe Xu, Dongliang Zhang, Wei Yang, Yanhong Ding, Changjian Li, Lihua Gao, Kadambot H. M. Siddique, Zhongyi Qu
Publikováno v:
Agronomy, Vol 14, Iss 9, p 2028 (2024)
Biochar is a widely recognized soil amendment used to improve soil physicochemical properties and crop productivity. However, its compositive effects on soil water, fertilizer, and carbon in cropping systems are not extensively understood. A two-year
Externí odkaz:
https://doaj.org/article/fb430bfd6af4405b95ea1595a9c936e2
Publikováno v:
Agronomy, Vol 14, Iss 8, p 1845 (2024)
Field zones at risk of low nitrogen use efficiency (NUE) can be identified by analyzing in-field spatial variability. This hypothesis was validated by analyzing soil mineral nitrogen (Nmin) and several plant and soil N management indices. The researc
Externí odkaz:
https://doaj.org/article/06e9bcfe30444e3e87df4084a080c60d