Showing papers in "Field Crops Research in 2017"

TL;DR: This paper conducted a meta-analysis to quantify the effect of AWD on rice yields and water use and identified soil properties and management practices that favor AWD yields and promote low water use relative to continuous flooding (CF-control).

TL;DR: Information on mechanisms leading to heat stress induced sterility is biased towards rice, wheat and sorghum, while the same across other field crops is limited, so increasing research efforts in this direction is critical and timely.

TL;DR: In this article, the authors reviewed the current knowledge of high temperature and elevated atmospheric CO2 on whole-grain and functional properties of wheat and discussed the utility of contemporary crop models for investigating the impacts of climate change on wheat quality; and discussed opportunities for advancing model capability.

TL;DR: In this paper, a high-throughput phenotyping platform was used to dynamically monitor normalized difference vegetation index (NDVI) during the growing season for the contrasting wheat cultivars and managements.

TL;DR: The Agricultural Production Systems Simulator (APSIM) as mentioned in this paper was used to simulate the performance of cropping systems in Asia from several perspectives: crop phenology, production, water use, soil dynamics (water and organic carbon) and crop CO 2 response, as well as its ability to simulate cropping sequences without resetting of soil variables.

TL;DR: In this paper, the potential of nadir and off-nadir ground-based spectro-radiometric measurements to remotely sense five plant traits relevant for field phenotyping was evaluated over fourteen sugar beet ( Beta vulgaris L) cultivars, two years and three study sites.

TL;DR: In this paper, a seven-year field experiment was conducted to evaluate the effects of the rate of N application on crop yield, NUE, nitrate residue (NR), and nitrate leaching in an intensive wheat/maize rotation system on the Loess Plateau of China.

TL;DR: The results showed that at soybean flowering stage, the R:FR ratio at the top of soybean canopy was reduced 17–21% more than the photosynthetically active radiation (PAR) under intercropping compared to monoculture, with 15–19% more reduction under 1M1S than 2M2S, and the reduction in grain yield was mainly caused by the reduced number of grains produced by the intercropped soybean plants, while the grain size remained unchanged.

TL;DR: In this paper, the advantages and effects of aboveground and belowground interactions of intercrops for light interception were analyzed in maize-soybean relay intercropping systems.

TL;DR: In this paper, the effects of biochar on crop productivity, soil properties and phosphorous use efficiency (PUE) when applied with organic P sources as either farmyard manure (FYM) or poultry manure (PM) and diammonium phosphate (DAP) chemical fertilizer were investigated.

TL;DR: In this article, a field experiment was performed in the Taihu Region with five treatments (two surface split broadcasting treatments: a current traditional practice under UDP (CTDP) and a reduced N practice with 225 kg N−1 (RN), and a CK treatment with no urea) to investigate the NH3 volatilization, grain yield and N use efficiency in terms of the N recovery efficiency.

TL;DR: Land Equivalent Ratios in intercropping systems are greater under low soil fertility conditions than in sole crops and within-row maize-legume intercrops is more productive than distinct row systems.

TL;DR: In this paper, a 20-year experiment was carried out to assess the long-term effects of substituting mineral fertilizer with organic manure on the yield, P use efficiency, and P balance.

TL;DR: In this paper, 15 wheat growth models of a larger MME were improved through re-parameterization and/or incorporating or modifying heat stress effects on phenology, leaf growth and senescence, biomass growth, and grain number and size using detailed field experimental data from the USDA Hot Serial Cereal experiment (calibration data set).

TL;DR: In this article, the authors used the widely validated cropping systems model APSIM to simulate wheat yield and flowering date, with reductions in yield applied for frost and heat damage based on air temperatures during sensitive periods.

TL;DR: In this article, the authors developed a novel protocol to ensure an ample N supply during the entire crop season (full-N treatment), which was applied to field-grown irrigated soybean in Balcarce (Argentina) and Nebraska (USA), where measured full-N seed yields were ±15% of their simulated yield in 92% of the cases.

TL;DR: Results indicate that plants grown under safe AWD conditions at this site have an increased grain mass compared to plants growing under CF, and this may be partly due to a high number of productive tillers.

TL;DR: In this paper, a study was conducted to optimize irrigation water use, grain yield, WUE, and economic return of super high yield maize in a drip irrigation and plastic film mulch system in Xinjiang.

TL;DR: In this paper, the effects of a mixture of CRU and uncoated urea (N ratios 7:3, respectively) on crop yields, economic benefits, N budgets, and soil fertility in a wheat-maize rotation system over an 8-year period in Shandong Province, China.

TL;DR: The authors assessed the sensitivity of European wheat yields to extreme weather related to phenology (sowing, heading) in cultivar trials across Europe (latitudes 37.21° to 61.34° and longitudes −6.02° to 26.24°) during the period 1991-2014.

TL;DR: In this article, the authors evaluate whether simulation of Tc improves the ability of crop models to simulate heat stress impacts on wheat under irrigated conditions and find that using Tc to account for heat stress effects did improve simulations compared to using only Tair to a relatively minor extent, but the models that additionally use Tc on various other processes as well did not have better yield simulations.

TL;DR: In this paper, the effect of sowing date and nitrogen application rates on maize dry matter, grain yield and nitrogen use efficiency under rainfed and irrigated condition was investigated under two planting dates, namely, timely and late sowing scenarios.

TL;DR: The data suggest that for both sowing dates moderate PPD is a promising option, which allows light interception and penetration to the lower canopy, efficient N utilization and assimilate distribution to reproductive structures.

TL;DR: In this article, two types of N fertilizer, commercial compound fertilizer (CF) and ammonia bicarbonate (AB), were placed mechanically at 10 cm of soil depth or broadcasted manually (B), (written as CFM, CFB, ABM and ABB, respectively).

TL;DR: In this paper, the effects of straw and straw-derived biochar amendments on soil properties, net global warming potential (NGWP) and net greenhouse gas intensity (NGHGI) were compared.

TL;DR: The northwest inland of China is currently facing major issues including stagnated cotton yields, serious plastic film pollution, continuous degradation in fiber quality, substantial increases in the cost of cotton production and continuously declining profits, so cotton cultivation strategies in the region need to be further optimized.

TL;DR: In this article, the authors attempted to build the threshold by using dataset of literature review and field experiments, which showed that the optimal N fertilizer rate should be around 185 kg N/N/1 for the wheat cultivation with achieved yield at 7000 kg/n/n−1.

TL;DR: The mutant plant showed yield advantages considering its shorter growth duration, indicating the higher photosynthetic capacity and improved canopy light distribution with reduced chlorophyll synthesis, and could potentially be used to improve photosynthetics efficiency.

TL;DR: In this paper, the effects of intercropping with legume companion plants on weed regulation and cash crop yields were analyzed, and their sources of variability were quantified by a meta-analysis.

TL;DR: In this paper, the authors established the relations between NR, N nutrition index (NNI) and relative yield (RY) at different crop growth stages in Japonica and Indica rice (Oryza sativa L.) eco-types and to estimate time-course NR for recommending supplemental N fertilization on Nc dilution curve basis.