Plastic film mulch for half growing-season maximized WUE and yield of potato via moisture-temperature improvement in a semi-arid agroecosystem
Effects of plastic mulching in ridges and furrows for varying durations on yield and water use efficiency (WUE) in potato were investigated in rainfed areas of north-western China in 2009 and 2010. The experiment comprised four mulched treatments (M50, M65, M80/85, and Mw – indicating plastic film mulch for 50, 65, and 80/85 d after sowing, and whole growth season, respectively – after which mulch in furrows was removed) and a non-mulched control. The results showed that film mulching warmed topsoil and increased topsoil water content. The daily mean topsoil temperature in mulched plots was 2.5–3.2°C higher than that in controls during the early growing season (sowing–emergence), the difference became less as the plant canopy grew; on some days later in the season, the difference was even negative (i.e. the topsoil temperature in mulched was lower than in control plots). Seedlings under mulching emerged 8.1–11.7 d earlier than those in controls due to the increased topsoil temperature and moisture in the early season. Mulching also prolonged the duration from seedling to maturity by 0.7–15.0 d and significantly increased plant height, leaf area index, and dry matter. Compared to non-mulched plots, yields in mulched plots increased by 33.9–92.5% and 62.9–77.8% in 2009 and 2010, respectively, and corresponding WUEs improved by 41.4–112.6% and 45.9–70.6%. Both tuber yield and WUE were highest in M65. The data indicate that mulching for about 65 d after sowing was ideal to optimize soil moisture and soil temperature and in turn to improve potato productivity and WUE in this semi-arid rainfed region.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Romic, D. & Romic, M. & Borosic, J. & Poljak, M., 2003. "Mulching decreases nitrate leaching in bell pepper (Capsicum annuum L.) cultivation," Agricultural Water Management, Elsevier, vol. 60(2), pages 87-97, May.
- Kar, Gouranga & Kumar, Ashwani, 2007. "Effects of irrigation and straw mulch on water use and tuber yield of potato in eastern India," Agricultural Water Management, Elsevier, vol. 94(1-3), pages 109-116, December.
- Tiwari, K. N. & Singh, Ajai & Mal, P. K., 2003. "Effect of drip irrigation on yield of cabbage (Brassica oleracea L. var. capitata) under mulch and non-mulch conditions," Agricultural Water Management, Elsevier, vol. 58(1), pages 19-28, January.
- Xie, Zhong-kui & Wang, Ya-jun & Li, Feng-min, 2005. "Effect of plastic mulching on soil water use and spring wheat yield in arid region of northwest China," Agricultural Water Management, Elsevier, vol. 75(1), pages 71-83, July.
- Wang, Xiao-Ling & Li, Feng-Min & Jia, Yu & Shi, Wen-Quan, 2005. "Increasing potato yields with additional water and increased soil temperature," Agricultural Water Management, Elsevier, vol. 78(3), pages 181-194, December.
- Chakraborty, Debashis & Nagarajan, Shantha & Aggarwal, Pramila & Gupta, V.K. & Tomar, R.K. & Garg, R.N. & Sahoo, R.N. & Sarkar, A. & Chopra, U.K. & Sarma, K.S. Sundara & Kalra, N., 2008. "Effect of mulching on soil and plant water status, and the growth and yield of wheat (Triticum aestivum L.) in a semi-arid environment," Agricultural Water Management, Elsevier, vol. 95(12), pages 1323-1334, December.
When requesting a correction, please mention this item's handle: RePEc:eee:agiwat:v:104:y:2012:i:c:p:68-78. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Dana Niculescu)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.