Effects of Plastic Mulching Modes on Soil Moisture and Grain Yield in Dryland Winter Wheat

2015 ◽  
Vol 41 (5) ◽  
pp. 787 ◽  
Author(s):  
Shou-Xi CHAI ◽  
Chang-Gang YANG ◽  
Shu-Fang ZHANG ◽  
Heng-Hong CHEN ◽  
Lei CHANG
Agronomy ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 37 ◽  
Author(s):  
Yan Liang ◽  
Shahbaz Khan ◽  
Ai-xia Ren ◽  
Wen Lin ◽  
Sumera Anwar ◽  
...  

Dryland winter wheat in the Loess Plateau is facing a yield reduction due to a shortage of soil moisture and delayed sowing time. The field experiment was conducted at Loess Plateau in Shanxi, China from 2012 to 2015, to study the effect of subsoiling and conventional tillage and different sowing dates on the soil water storage, Nitrogen (N) accumulation, and remobilization and yield of winter wheat. The results showed that subsoiling significantly improved the soil water storage (0–300 cm soil depth) and increased the contribution of N translocation to grain N and grain yield (17–36%). Delaying sowing time had reduced the soil water storage at sowing and winter accumulated growing degree days by about 180 °C. The contribution of N translocation to grain yield was maximum in glume + spike followed by in leaves and minimum by stem + sheath. Moreover, there was a positive relationship between the N accumulation and translocation and the soil moisture in the 20–300 cm range. Subsoiling during the fallow period and the medium sowing date was beneficial for improving the soil water storage and increased the N translocation to grain, thereby increasing the yield of wheat, especially in a dry year.


2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Jacob T. Bushong ◽  
D. Brian Arnall ◽  
William R. Raun

Preplant irrigation can impact fertilizer management in winter wheat. The objective of this study was to evaluate the main and interactive effects of preplant irrigation, N fertilizer application timing, and different N, P, and K fertilizer treatments on grain yield and WUE. Several significant two-way interactions and main effects of all three factors evaluated were observed over four growing seasons for grain yield and WUE. These effects could be described by differences in rainfall and soil moisture content among years. Overall, grain yield and WUE were optimized, if irrigation or adequate soil moisture were available prior to planting. For rain-fed treatments, the timing of N fertilizer application was not as important and could be applied before planting or topdressed without much difference in yield. The application of P fertilizer proved to be beneficial on average years but was not needed in years where above average soil moisture was present. There was no added benefit to applying K fertilizer. In conclusion, N and P fertilizer management practices may need to be altered yearly based on changes in soil moisture from irrigation and/or rainfall.


1997 ◽  
Vol 77 (2) ◽  
pp. 207-213 ◽  
Author(s):  
G. Opoku ◽  
T. J. Vyn

Corn (Zea mays L.) yield reduction following winter wheat (Triticum aestivum L.) in no-till systems prompted a study on the effects of tillage and residue management systems on corn growth and seedbed conditions. Four methods for managing wheat residue (all residue removed, straw baled after harvest, straw left on the soil surface, straw left on the soil surface plus application of 50 kg ha−1N in the fall) were evaluated at two tillage levels: fall moldboard plow (MP) and no-till (NT). No-till treatments required at least 2 more days to achieve 50% corn emergence and 50% silking, and had the lowest corn biomass at 5 and 7 wk after planting. Grain yield was similar among MP treatments and averaged 1.1 t ha−1 higher than NT treatments (P < 0.05). Completely removing all wheat residue from NT plots reduced the number of days required to achieve 50% corn emergence and increased grain yields by 0.43 and 0.61 t ha–1 over baling and not baling straw, respectively, but still resulted in 8% lower grain yields than MP treatments. Grain yield differences among MP treatments were insignificant regardless of the amount of wheat residue left on the surface or N application in the fall. Early in the growing season, the NT treatments where residue was not removed had lower soil growing degree days (soil GDD) compared with MP (baled) treatment, and higher soil moisture levels in the top 15 cm compared with all other treatments. The application of 50 kg N ha−1 in the fall to NT (not baled) plots influenced neither the amount of wheat residue on the soil surface, nor the soil NO3-N levels at planting. Our results suggest that corn response in NT systems after wheat mostly depends on residue level. Key words: Winter wheat, straw management, no-till, corn, soil temperature, soil moisture


2018 ◽  
pp. 31-35
Author(s):  
S Abdurakhmonov ◽  
I Abdullayev

In the experiments conducted on typical serozem soils in the Tashkent region, two soil moisture levels of 60-70-60 and 70-80-70% of LFMC were studied, and two norms of mineral fertilizers NPK: 200-140-100 and 150-105-75 kg/ha with additional application of bentonite clays in the amount of 1500-3000-4500 kg/ha for plowing before sowing of winter wheat. The obtained data show that when watering with soil moisture 60-70-60% of LFMC with application of mineral fertilizers with NPK norms: 200-140-100 and 150-105-75 kg/ha and application of bentonite clays in the amount of 1500, 3000 and 4500 kg/ha, the saving of irrigation water in comparison with the control variant, respectively, amounted to 770 m3/ha, 810 m3/ha and 850 m3/ha, and the grain yield increase of 6,9-8,8-10,1 c/ha from the norm of mineral NPK fertilizers: 200-140-100 kg/ha, and an increase in the grain yield of 11,3-13,4-14,7 centner/ha from the norm of mineral fertilizers NPK: 150-105-75 kg/ha. Carrying out irrigations with soil moisture of 70-80-70% of LFMC with the use of mineral fertilizers together with bentonite clay in the amount of 1500-3000-4500 kg/ha, the saving of irrigation water in comparison with the control was 630 m3/ha, 790 m3/ha and 890 m3/ha, where the increase in the grain yield increased 6,3-8,9-10,7 c/ha with the norm of mineral fertilizers NPK: 200-140-100 kg/ha, and 10,4-12,9-14,6 centners per hectare with the norm of mineral fertilizers NPK: 150-105-75 kg/ha.


2016 ◽  
Vol 42 (11) ◽  
pp. 1677 ◽  
Author(s):  
Su-Mei ZHOU ◽  
Ke-Ke ZHANG ◽  
Man ZHANG ◽  
Lei LI ◽  
Chun-Li ZHANG ◽  
...  

2011 ◽  
Vol 37 (1) ◽  
pp. 182-189 ◽  
Author(s):  
Shu-Ping XIONG ◽  
Xiao-Chun WANG ◽  
Xin-Ming MA ◽  
Peng ZHAO ◽  
Lu WANG ◽  
...  

Agriculture ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 105 ◽  
Author(s):  
Iwona Jaskulska ◽  
Dariusz Jaskulski ◽  
Marek Różniak ◽  
Maja Radziemska ◽  
Lech Gałęzewski

Zonal tillage, including strip-till, can have a positive effect on soil properties, seed germination, plant emergence, growth, and yield of crops. The aim of this two-factor field experiment was to compare different technologies of basic soil tillage, fertilisation, and sowing of winter wheat carried out after two post-harvest agrotechnical practises in a region with low rainfall. The three treatments of the first factor were: conventional technology (CT)—plough tillage, pre-sowing fertilisation, seedbed preparation and sowing; reduced technology (RT)—plough tillage replaced with deep loosening and (ST)—one pass strip-till technology using a hybrid machine. Agrotechnical practises carried out after the harvest of the previous crop were the second factor treatments, i.e., crushed straw and shallow tillage (TS), mulch from crushed straw (MS). The measurement of the treatment effects included changes in soil moisture, plant emergence, yield components and their correlation, grain yield, and the dependence of the yield components on soil moisture. Wheat growing in ST technology resulted in a higher soil moisture than in RT and CT. Only immediately after winter was the soil moisture similar. Grain yield in ST was similar as in CT and significantly, up to 10.4%, higher than in RT. The higher ST grain yield resulted from uniform plant emergence, greater ear density, and grain weight per ear. The correlation between yield components was weaker in ST than in CT and RT. The positive dependence of the size of the crop components on soil moisture was also weaker. The agrotechnical practises performed right after the previous crop harvest affected neither the soil moisture during the growing season of winter wheat, nor the grain yield and its components.


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