Crop water needs
Water use and onion crop production in no-tillage and conventional cropping systems
... irrigation water management by treatment, with irrigations carried out at the right time (soil-water tension 25-30 kPa) and in adequate amount to meet the crop water needs, ...of ...
4
Water needs and equivalence relations for different irrigated crops in the São Francisco basin
... set crop water needs, and it is based on the combination of climatic elements such as maximum and minimum temperature, sunshine hours or solar radiation, wind speed and relative humidity (ALENCAR; ...
11
Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
... of crop water needs is carried out through water balance, taking into account rainfall and flows in the soil and between soil and atmosphere (Araujo et ...estimate water availability in ...
7
Relating water productivity and crop evapotranspiration
... An high WP may also be obtained when a crop is water stressed (up to acceptable limits); then the yield is reduced as well as the denominator terms in Eq. 5. But such an high productivity is obtained with ...
19
STATE-SPACE APPROACH FOR THE ANALYSIS OF SOIL WATER CONTENT AND TEMPERATURE IN A SUGARCANE CROP
... among observations and disregard their location intra-field, these newly applied methods in soil science, take advantage of the spatial dependence making use of the location of each observation. Several statistical ...
7
Evapotranspiration, crop coefficient and water use efficiency of coriander grown in tropical environment
... The values of meteorological variables during the four experimental campaigns with the coriander crop in the studied region are presented in Table 1. Seasonal rainfall during the winter growing season was highest ...
7
Effects of glyphosate-resistant crop cultivation on soil and water quality - Portal Embrapa
... We have provided an abbreviated survey of the potential impacts (risks and benefits) of GRCs on soil and water quality. Clearly, we and many of the authors who have written on this topic empha- size that risks and ...
9
AND IRRIGATION IN RELATION TO YIELD AND WATER USE OF THE BELL PEPPER CROP
... the water received by the crop is provided by ...of water and, in order to have higher productivity, an adequate water supply and a relatively moist soil during the entire development process ...
6
Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil
... The crop coefficient values (kc) consid- ered were extracted from ...coffee crop evapotranspiration (ETc) presents high variability in Minas Gerais ...smallest water requirements of coffee ...coffee ...
8
WATER DEMAND, CROP COEFFICIENT AND UNCOUPLING FACTOR OF COWPEA IN THE EASTERN AMAZON
... the water balance method in the field as the volume of vegetated soil is properly insulated and therefore, all inputs and outputs of water in this system are controlled (SANTOS et ...the water ...
11
Water use, transpiration and crop coefficients for irrigated hedgerow olives grown in Southern Portugal
... Average daily temperature was 22, 7 ºC during summer (1 June-30 September) while daytime average temperature for the same period was 26,3ºC (Table 1). Estimations of average daily and daytime net radiation (NR), vapour ...
6
Climate change in Guadiana river basin and its impacts on crop water demand
... on crop water and irrigation ...soil water balance simulations to evaluate the trend of irrigation water requirements considering maximum potential ...estimated crop irrigation ...
10
EFFECT OF DIFFERENT LEVELS OF WATER DEFICIT ON RAPESEED (Brassica napus L.) CROP
... to water deficit is justified by changes in availability of precursors to fulfil the grain, as reproductive organs and grains are built of resources either recently achieved or previously amassed in the vegetative ...
13
Brazilian maize genotypes sensitivity to water deficit estimated through a simple crop yield model
... to water deficit, using a simple agrometeorological crop yield ...model. Crop actual yield and agronomic data of 26 genotypes were obtained from the Maize National Assays carried out in ten ...
8
Water use, transpiration, and crop coefficients for olives (cv. Cordovil), grown in orchards in Southern Portugal
... the water stress coefficient from May to ...sustained water stress to values close to 77% of treatment ...from water extracted from outside of the area wetted by the drip irrigation ...before ...
13
Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system
... with water for 12 h and analysed in a centrifuge Kokusan H-1400pF ® , four samples at a time, for 30 min under seven speed lev- els: 600, 700, 800, 1300, 1800, 2400 and 9100 rpm (equiva- lent to 0, ...soil ...
14
PRODUCTIVE PERFORMANCE OF MAIZE CROP IRRIGATED WITH AND WITHOUT WATER DEFICIT IN DIFFERENT PLANT ARRANGEMENTS
... different water regimes, on dry grain production of the maize hybrid AG -1051, in Teresina, ...50% crop evapotranspiration (ETc) ...and water use efficiency were ...Under water deficit ...
13
WATER CONSUMPTION AND SOIL MOISTURE DISTRIBUTION IN MELON CROP WITH MULCHING AND IN A PROTECTED ENVIRONMENT
... total water depth. It is also important to observe the soil-water relations as soil water distribution and wetted volume ...the water spatial distribution around the melon root system in two ...
10
Growth and yield of cowpeasunflower crop rotation under different irrigation management strategies with saline water
... saline water on growth and yield of cowpea and sunflower in a crop ...using water of ...entire crop cycle; T5, T6 and T7, use of A2, A3 and A4 water, respectively, only in the flowering ...
7
Crop coefficient and water consumption of eggplant in no-tillage system and conventional soil preparation
... of water retention in the soil. The break in continuity of water flow, promoted by mulching the soil surface formed in no-tillage, reduces water loss by evaporation, keeping the higher moisture in ...
10