scholarly journals Summer Drip Irrigation Requirements for Cucumber

1969 ◽  
Vol 67 (3) ◽  
pp. 328-334
Author(s):  
Megh R. Goyal ◽  
William F. Allison
Keyword(s):  
Crop Yield ◽  
Drip Irrigation ◽  
Water Requirement ◽  
Plastic Mulch ◽  
Crop Performance ◽  
Irrigation Requirements

Cucumbers (Variety Poinsett 76) were drip irrigated during March, 1980 at Fortuna Substation to evaluate the water requirement and effect of silver coated plastic mulch on crop performance. The moist treatment gave significant increases in crop yield at the 5% level compared with wet and dry treatments. The use of plastic mulch further increased production by 4.6 tons per hectare.

Effect of Irrigation Methods and Mulching on Growth and Seed Yield of Semialata

2020 ◽  
Vol 7 (01) ◽  
Author(s):  
SK SRIVASTAVA ◽  
PAWAN JEET
Keyword(s):  
Seed Yield ◽  
Drip Irrigation ◽  
Growth Parameters ◽  
Block Design ◽  
Water Requirement ◽  
Furrow Irrigation ◽  
Plastic Mulch ◽  
Randomized Block Design ◽  
Daily Water ◽  
Black Plastic

A study was conducted to assess the effect of drip irrigation and plastic mulch on growth and seed yield of Semialata. Two types of plastic mulch (green and silver/black) were tested at three levels of irrigation (120%, 100% and 80%) by drip irrigation and one level (100%) by furrow irrigation. The daily water requirement of Semialata was estimated by the equation ETcrop= ETox crop factor. ETcrop is crop water requirement mm/day. ETo (reference evapotranspiration, mm/day) was calculated by FAO calculator which uses temperature and humidity data. In this experiments there were twelve treatments were considered. The treatments were replicated thrice. The experiment was laid in randomized block design. It was observed that drip irrigation with or without plastic mulch is yielding better results in terms of growth parameters and seed yield as compared to furrow irrigation without plastic mulch. It was also observed that maximum suppression (67.58%) of weeds resulted with drip irrigation and silver/black plastic mulch at 80% level of irrigation.

scholarly journals Assessing the impact of shallow subsurface pipe drainage on soil salinity and crop yield in arid zone

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12622
Author(s):  
Haichang Yang ◽  
Weiye Chen ◽  
Yun Chen ◽  
Fenghua Zhang ◽  
Xiaohu Yang
Keyword(s):  
Crop Yield ◽  
Soil Salinity ◽  
Drip Irrigation ◽  
Soil Salinization ◽  
Water Salinity ◽  
Growth Stages ◽  
Plastic Mulch ◽  
Soil Layers ◽  
Shallow Subsurface ◽  
The Impact

Purpose Soil salinization is one of the key problems of sustainable development of arid agricultural land. Exploring the use of shallow subsurface pipe drainage to improve soil salinization. Methods This study investigates the desalinization effect of shallow subsurface pipe drainage, in combination with drip irrigation under plastic mulch, in an arid region in China. Field data collection was conducted in 2010. Soil salinity at a range of soil depths, water EC and pH of subsurface pipe drainage and crop yield during crop growth stages in salinized farmlands were measured. Results and Conclusion The results show that soil salinity was reduced significantly on mildly (1–3 dS m−1) and moderately (3–6 dS m−1) salinized farmlands. The highest desalinization rate of mildly and moderately salinized soils was 51% and 91% respectively. The desalinization in upper soil layers, to a depth of 60 cm, was more significant than that in lower soil layers. Drainage water salinity was much higher than irrigation water salinity. Crop yield on mildly and moderately salinized land increased about 25% and 50%, respectively. This indicates that the combination of drip irrigation and shallow subsurface pipe drainage on farmlands is potential feasible to desalt farmlands and to improve crop yield. The study has led to a desalinization of 330 ha year−1 in Xinjiang.

scholarly journals Pan evaporation and sensor based approaches of irrigation scheduling for crop water requirement, growth and yield of okra

2021 ◽  
Vol 23 (4) ◽  
pp. 389-395
Author(s):  
VIKAS SHARMA ◽  
P.K. SINGH ◽  
S.R. BHAKAR ◽  
K.K. YADAV ◽  
S.S. LAKHAWAT ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Crop Yield ◽  
Drip Irrigation ◽  
Irrigation Scheduling ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Pan Evaporation ◽  
Crop Water ◽  
Use Efficiency

The results of this study revealed that the pan evaporation and sensor based irrigation scheduling along with fertigation scheduling significantly affected the plant height, fruit weight, fruit length, crop water requirement, crop yield and water use efficiency of okra crop. The pan evaporation and crop evapotranspiration (ETc) values significantly vary over different stages of okra crop. The maximum and minimum average daily pan evaporation was recorded 8.4 mm day-1 and 4.5 mm day-1 at mid stage and late stage of okra crop respectively while, the maximum average daily ETc was recorded 7 mm day-1 at mid stage of okra crop. A approach of irrigation scheduling with 100 per cent field capacity, based on soil moisture sensor under automated drip irrigation system along with 100 per cent RDF through fertigation in equal splits at 4 day intervalor 80 % per cent of volume of crop water requirement based on pan evaporation under automated drip irrigation along with 100 per cent RDF through fertigation in equal splits at 2 day interval, can be used for irrigating okra crop with significant water saving, crop yield and water use efficiency under limited availability of daily weather datain climatic condition of Udaipur district of Rajasthan.

Water Requirements of Drip-Irrigated Maize (Zea mays L.) with Plastic Mulching in Heilongjiang, Northeast China

2019 ◽  
Vol 62 (6) ◽  
pp. 1697-1704
Author(s):  
Songjun Han ◽  
Di Xu ◽  
Yingduo Yu ◽  
Jiandong Wang ◽  
Yanqun Zhang
Keyword(s):  
Drip Irrigation ◽  
Northeast China ◽  
Crop Coefficient ◽  
Temporal Variations ◽  
Water Requirement ◽  
Irrigation Requirement ◽  
Large Area ◽  
Plastic Mulch ◽  
Water Requirements ◽  
Plastic Mulching

Abstract. A large area of rainfed maize ( L.) is planned to be replaced by maize under drip irrigation with plastic mulching (MDI) in Heilongjiang, northeast China, through a “water-saving and grain-increasing action” project. However, knowledge is lacking on the water requirements of maize under MDI. On the basis of a locally developed crop coefficient for a site, the spatial and temporal variations in crop water requirement (ETc) and net irrigation requirement (Nir) of maize under MDI in Heilongjiang were evaluated. The average ETc and Nir of maize under MDI in the period from 1960 to 2017 for 29 meteorological stations were 279 to 388 mm and 73 to 198 mm, respectively, which are approximately 10% and 15% lower than the ETc and Nir under conventional surface irrigation (NSI). The differences in ETc and Nir between the two irrigation technologies are significant in the southwestern region, which demonstrates that the intensive planning of MDI in the southwest is justified. The gross irrigation requirement of maize under MDI in an excessive drought year is estimated as 437 million m3 for the project, which is 137 million m3 less than the irrigation requirement using NSI.HighlightsAverage ETc and Nir of maize under MDI are approximately 10% and 15% lower than those under NSI.The differences in ETc and Nir are significant in the southwestern region of Heilongjiang.The estimated gross irrigation requirement of maize under MDI is much less than that under NSI. Keywords: Crop coefficient, Drip irrigation, Maize, Northeastern China, Plastic mulch, Water requirement.

scholarly journals Effects of Plastic Mulch Types on Crop Performance of Drip Irrigated Winter and Summer Peppers

1969 ◽  
Vol 68 (3) ◽  
pp. 297-305
Author(s):  
Megh R. Goyal ◽  
Rubén Guadalupe Luna ◽  
Luis E. Rivera ◽  
E. R. De Hernández
Keyword(s):  
Plant Growth ◽  
Fruit Quality ◽  
Drip Irrigation ◽  
Growth Parameters ◽  
Growth Yield ◽  
Fruit Weight ◽  
Performance Characteristics ◽  
Plastic Mulch ◽  
Crop Performance ◽  
Black Plastic

Plant growth, yield, fruit quality and fruit performance characteristics were evaluated for transparent (T1)-, white (T2)-, black (T3)-, silver coated black plastic (T4) mulched, organic mulched, (T5) and non-mulched (T6) peppers (var. Cubanelle) under drip irrigation during winter and summer of 1981-82. Values of plant growth parameters, fruit weight, fruit width and length were significantly higher at 5% level during the winter than during the summer in each treatment thus resulting in increased winter pepper yield. T1 plots caused lowest pepper yield at 5% compared to yield of T2, T3, T4, T5 and T6. The percentage of defective peppers was highest at 5% level during the summer than during the winter. Second harvest had highest fruit weight at 5% level in comparison with third and fourth harvests during the winter and summer.

scholarly journals Model Validation of Aqua Crop for Brinjal (Solanum melongena) Crop at Madakasira Region, Anantapur District, Andhra Pradesh

2021 ◽  
pp. 30-41
Author(s):  
P. Sivamma ◽  
N. Naga Hari Sairam ◽  
G. Raghavendra ◽  
M. Muralee Krishna ◽  
S. V. Swapna Priya ◽  
...  
Keyword(s):  
Crop Yield ◽  
Drip Irrigation ◽  
Andhra Pradesh ◽  
Simulation Models ◽  
Water Requirement ◽  
Crop Water Requirement ◽  
Crop Water ◽  
Flood Irrigation ◽  
Crop Simulation ◽  
Crop Simulation Models

Crop simulation models plays a vital role for estimating the effects of soil, water, nutrients on grain and biomass yields and water productivity of different crops. Among the various crop simulation models, Aqua Crop model was adopted for the predicting the crop water requirement in the Madakasira region, Anantapur district, Andhra Pradesh. The Brinjal crop was selected for the study and was irrigated through two different methods i.e., drip and flood irrigation. The model generated the crop yield and crop water requirement for the drip and flood irrigation of Brinjal crop was compared with the actual field results of crop yield and crop water requirement. The simulated crop yield and crop water requirement for the Brinjal crop under flood irrigation was 5.23 t/ha and 326 mm. The actual crop yield and crop water requirement for the Brinjal crop under flood irrigation was 4.2 t/ha and 335 mm. The simulated crop yield and crop water requirement for the Brinjal crop under Drip irrigation was 5.76 t/ha and 318.3 mm.  The actual crop yield and crop water requirement for the Brinjal crop under drip irrigation was 4.8 t/ha and 290 mm.  From the results, it was clear that the model simulated the actual conditions of the crop. The benefit cost ratio was done for the experimental field data which clearly shows that the crop yield under drip irrigation has achieved the higher cost benefit ratio. Therefore, Aqua Crop model was suitable for simulating the crop conditions under any circumstances.

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