Effects of plastic film mulching on soil temperature and moisture and on yield formation of spring wheat

Abstract

Abstract: Field experiments were carried out to study the effects of plastic film mulching on soil temperature and moisture, and on yield formation of spring wheat. The results showed that plastic film mulching could increase soil temperature with "U" variances in the whole growth period of spring wheat. Plastic film mulching could also increase soil available water by restraining evaporation and elevating deep water to the layer useable for roots. The promotion of soil temperature and soil water content under plastic film mulching was favorable to the development and water use of spring wheat in its earlier stage. Root developments were restrained when mulching in later stage of spring wheat, with decreases in crop water consumption and water use efficiency, and there was no significant effects on yield formation.The spring wheat yields under control (CK), pre sowing irrigation (W), mulching for whole stage (M), pre sowing irrigation adding mulching for 30 days (WM30), pre sowing irrigation adding mulching for 60 days (WM60), and pre sowing irrigation adding mulching for whole stage (WMw) were 2554, 2424, 2750, 3138, 3305, and 3123 kg·hm^-2, respectively, and the optimum mulching time was at 40～60 days.

CLC Number:

S158

WANG Jun, LI Fengmin, SONG Qiuhua, LI Shiqing. Effects of plastic film mulching on soil temperature and moisture and on yield formation of spring wheat[J]. Chinese Journal of Applied Ecology, 2003, (2): 205-210.

References

[1] Chaudhary TN,Chopra UK.1983.Effect of soil covers on growth and yield of irrigated wheat planted at two dated.Field Crop Res,6:293～304
[2] Gan YT,Stobbe EH.1996a. Mainstem leaf stage and its relation to single plant grain yield in spring wheat.Crop Sci,36:628～632
[3] Gan YT,Stobbe EH.1996b. Seedling vigor and grain yield of ‘Roblin'wheat affected by seed size.Agron J, 88:456～460
[4] Gao ZQ, Yin J, Miao GY,et al.1999.Effects of tillage and mulch methods on soil moisture in wheat fields of Loess Plateau, China.Pedosphere,9(2):161～168
[5] Li FM, Guo AH,Wei H.1999.Effects of plastic film mulch on yield of spring wheat.Field Crop Res,63(1):79～86
[6] Li F-M (李凤民),Guo A-H (郭安红),Luo M (雒梅),et al. 1997. Effect of water supply from deep soil on dry matter production of winter wheat.Chin J Appl Ecol(应用生态学报), 8(6): 575～579 (in Chinese).
[7] Li F-M(李凤民),Yan X(鄢),Wang J(王俊),et al.2001. The mechanism of yield decrease of spring wheat resulted from plastic film mulching.Sci Agric Sin(中国农业科学), 34(3): 330～333 (in Chinese)
[8] Li F-M (李凤民),Zhao S-L (赵松岭),Duan S-S (段舜山),et al.1995.Preliminary study on limited irrigation for spring wheat field in semi-arid region of Loess Plateau.Chin J Appl Ecol(应用生态学报), 6(3): 259～264 (in Chinese)
[9] Liu J-C(刘金城),Yang J-Q(杨晶秋),Bai C-Y(白成云). 1991.The decomposition and accumulation of soil organic matter under film mulching.Acta Agric Boreali-Sin(华北农学报),6(1):99～104(in Chinese).
[10] Niu JY, Gan JW, Zhang JW,et al.1998.Postanthesis dry matter accumulation and redistribution in spring wheat mulched with plastic film.Crop Sci,38:1562～1568
[11] Shan L(山仑).1983. The studies on plants and water relationship and the promotion to dryland agricultural productivity in Northwest China.Plant Physiol Commu(植物生理学通讯), 5:7～10 (in Chinese)
[12] Shan L(山仑),Chen G-L (陈国良). 1993. Methods and Practices of Dry-land Agriculture in Loess Plateau. Beijing:Science Press.(in Chinese)
[13] Wang H-Q (王虎全),Han S-M(韩思明), Tang S-H(唐栓虎), Li G(李岗), Xie H-M(谢惠民). 1998. Superhigh yield cultivation technique of winter wheat film mulched for whole growing process in Weibei dryland.Chin J Agric Res Arid Area(干旱地区农业研究),16(1):24～30 (in Chinese)
[14] Wang S-S (王树森),Deng G-Y(邓根云).1991.A study on the mechanism of soil temperature in creasing under plastic mulch.Sci Agric Sin(中国农业科学),24(3):74～78 (in Chinese).
[15] Zhu Z-X (朱自玺),Niu X-Z (牛现增),Fu X-J (付湘军). 1987. The analysis on the water use of winter wheat.Agrometeorology(农业气象),13(2):29～32 (in Chinese)