نتایج جستجو برای: rainfed and deficit irrigation
تعداد نتایج: 16839624 فیلتر نتایج به سال:
Zhou, X. B. and Y. h. Chen, 2011. Yield response of winter wheat to row spacing under irrigated and rainfed conditions. Bulg. J. Agric. Sci., 17: 158-166 In China, wheat (Triticum aestivum L.) is cultivated across a wide range of climatic conditions. The average rainfall was recorded at 696.6 mm per year from 1971 to 2008 at Taian in northern China. Considerable variability in the row spacing (...
Abstract Large distribution of roots in topsoil layers allow more uptake soil water and nutrients during the vegetative growth, but it may be disadvantageous if deficit develops reproductive stage. The relationship between (0–0.4 m) use, dry matter nitrogen (N) accumulations, grain yield was examined winter wheat (Triticum aestivum L.) with contrasting root size topsoil. Two old landraces (CW13...
This experiment was conducted to determine evapotranspiration, crop coefficient and water use efficiency of cucumber and tomato for a period of six months in the Resarch Greenhouse of Urmia University. Daily evapotranspiration of cucumber, tomato and reference crop was measured using lysimeter method. Based on the results, cucumber evapotranspiration for growth period of 130 days was 272.4 mm a...
Interspecific interactions and recovery growth play an important role in crop growth, development ultimately yield intercropping systems. However, the impact of different water nitrogen levels on production, interspecific between intercrops, late-maturing crops is still unclear. A two-year field experiment was conducted Yangling, Shaanxi province, to investigate dynamics interactions, effects y...
The Thar Desert occupies about two-third part in the State of Rajasthan. Traditionally, agriculture in this region depends on the scanty rainfall. Irrigation was introduced in ths area by commissioning Indira Gandh Nahar Pariyojona (IGNP). The total irrigation potential is estimated as 13.87 lakh hectares. Canal irrigation has brought a significant change in the cropping pattern. The traditiona...
to better understand the potential for improving biomass accumulation and radiation use efficiency (rUE) of winter wheat under deficit irrigation regimes, in 2006–2007 and 2007–2008, an experiment was conducted at the luancheng Experimental Station of Chinese academy of Science to study the effects of deficit irrigation regimes on the photosynthetic active radiation (Par), biomass accumulation,...
Optimum irrigation is very important for nursery stock management of F1-hybrid oil palm (Elaeis guineensis Jacq.), constituting a major production cost. Generally, over watering of nursery stock can be a cause of loss of productivity. The aim of this study was to investigate the physiological and biochemical responses of oil palm nursery stock to reduced soil water content (SWC) and during the ...
the objective of this research was to investigate the effects of deficit irrigation on physiological and agronomic terms of eggplant to maximize the water use efficiency (wue) without affecting the final yield and fruit quality parameters under arid environment. therefore, two field experiments were conducted at two different sites: ghor al-safi, jordan valley and sail al-karak, karak valley, ka...
The inconsistency of the Indian monsoon has constantly threatened country’s food production, especially key crops such as rice. Crop planning measures based on rainfall patterns during rice-growing season can significantly improve sustainable water usage for water-intensive This study examines variability monsoonal in rainfed and irrigated rice-cultivating regions to utilization irrigation wate...
In order to study the effect of physiological and biochemical responses of tomato cv. Rio Grande to foliar spray of Megafol under water deficit stress, an experiment was carried out in a split plot based on randomized complete block design with three replicates in Research Filed of university of Zanjan as during 2015. Treatments consisted arrangement of three irrigation levels (starting irrigat...
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