The Effect of Integrated management of Conservation Tillage and Lathyrus sativus Cover Cropping on Cucurbita pepo Yield and Selected Soil Quality Indicators

پژوهشهای زراعی ایران

Article 7, Volume 16, Issue 2 - Serial Number 50, July 2018, Pages 421-434   

Document Type: Research Article

DOI: 10.22067/gsc.v16i2.63807

Authors

E Esfandiary ekhlas; M Nael^* ; J Hamzei

Bu-Ali Sina University

Abstract

Introduction
Minimum tillage (MT) and no-tillage (NT) are collectively described as conservation tillage. Conservation tillage reduces production costs, saves water, increases soil organic matter, prevents soil erosion, mitigates greenhouse gases from the soil, improves air quality, protects wildlife habitat and biodiversity, improves production and ensures environmental safety. Cover crops are considered as a support for sustainable cropping system. Some researchers have declared that using cover crops or maintaining sufficient residues of previous crops increase soil fertility and soil organic matter levels in the long term. According to strategic importance of organic matter and the significant role of tillage practices and crop residue management on crop production and soil quality improvement, a 4-year field experiment was conducted to determine Cucurbita pepo yield, yield components and selected soil quality indices, under different tillage and cover crop managements.
Materials and Methods
A four-year field experiment (2011-2014) was carried out at Bu-Ali Sina University Experimental Field in Dastjerd, Hamadan, as a factorial randomized complete block design with three replications. The area is located at 37 km of Hamadan, between 48◦31' E and 35◦01' N with 330 mm annual rainfall and 1690 m altitude. Treatments consist of three levels of tillage practices (including, NT: no-tillage (direct seeding), MT: minimum tillage (chisel plowing + disk) and CT: conventional tillage (moldboard plowing + disk)) and two levels of cover cropping (including, C1: with legume cover crop (lathyrus sativus) and C0: without cover crop) and were applied for four consecutive years. Pumpkin (Cucurbita pepo)was planted in the fourth year. Plant and soil samples were analyzed for grain yield, seed numbers per fruit, fruit diameter, 1000-grain weight, fruit yield, soil porosity, bulk density and alkaline phosphatase activity in 2014. Data obtained were analyzed using statistical software SAS ver. 9.4 and the means were compared using LSD test at 5 % probability level.
Results and Discussion
The highest levels of grain yield (142 g m-2), seed numbers per fruit (348), fruit diameter (78.2 cm), fruit yield (3.53 kg), soil porosity (%53.7), and alkaline phosphatase activity (3413 μg ρNP g-1 h-1) were observed in minimum tillage with Legume cover crop treatment (MT-C1); the lowest amounts of aforementioned traits, however, were obtained in CT-C0 treatment. Conservation tillage treatments (no-till and minimum tillage) with Lathyrus as cover crop demonstrated the lowest soil bulk density (average 1.1 g cm-3) and the highest porosity (average 53.7%) compared to other treatments. In conventional tillage without cover crop (CT-C0) the highest soil bulk density (1.42 g cm-3) and the lowest soil porosity (40.8 %) were observed; these indicators were not statistically different from that of minimum tillage without cover crop treatment (MT-C0). Furthermore, NT-C0 and MT-C0 showed no difference for the two same indicators. No-tillage with cover crop treatment (NT-C1) demonstrated the highest phosphatase activity (3413 μg ρNP g-1 h-1). Moreover, this treatment was statistically similar to MT-C1 and CT-C1 in this respect. On the contrary, this index was significantly lowest (1861 μg ρNP g-1 h-1) in the traditional management (CT-C0). Cover crops increase available nutrients, microbial population, microbial biomass activity and moderate soil temperature by enhancing soil organic matter. Conservation tillage on its part further improves these effects by preventing the rapid decomposition of organic matter, which eventually increases pumpkin yield and yield components as well as soil quality indicator.
Conclusions
Generally, after four years of applying different tillage practices with legume cover cropping, it was concluded that incorporation of Lathyrus sativus cover cropping with conservation tillage (either no-tillage or minimum tillage) is the most appropriate management for the studied area (Hamadan) in view of pumpkin yield and soil quality improvement.

Keywords

Alkaline phosphatase; Bulk density; Conservation tillage; grain yield; Soil porosity

References

1. Barzegar, A. R., Asoodar, M. A., Khadish, A., and Hashemi, A. M. 2003. Soil physical characteristics and chickpea yi eld responses to tillage treatments. Soil and Tillage Research 71: 49-57.

2. Bergkvist, G., Stenberg, M., Wetterlind, J., Bath, B., and Elfstrand, S. 2011. Clover cover crops under-sown in winter wheat increase yield of subsequent spring barley Effect of N dose and companion grass. Field Crops Research 120: 292-298.

3. Blake, G. R., and Hartge, K. H. 1986. Bulk density. P 363-375. In: A. Klute. (Eds.), Method of Soil Analysis. Part1. Physical and Mineralogical Methods, 2th ed. Agronomy monographs, 9. ASA-SSSA, Madison, WI.

4. Bogunovic, I., Pereira, P., Kisica, I., Sajkoa, K., and Srakac, M. 2018. Tillage management impacts on soil compaction, erosion and crop yield in Stagnosols (Croatia). Catena 160: 376-384.

5. Bond, W. R., Turner, J., and Grundy, A. C. 2003. A review of non-chemical weed management. H.D.R.A. the organic organization. Ryton Organic Garden, U.K.

6. Campiglia, E., Caporali, F., Radicetti, E., and Mancinelli, R. 2010a. Hairy vetch (Vicia villosa Roth.) Cover crop residue management for improving weed control and yield in no-tillage tomato (Lycopersicon esculentum Mill). European Journal of Agronomy 33: 94-102.

7. Campiglia, E., Mancinelli, R., Radicetti, E., and Caporali, F. 2010b. Effect of cover crops and mulches on weed control and nitrogen fertilization in tomato (Lycopersicom esculentum Mill). Journal of Crop Protection 29: 354-363.

8. Courtney, R. G., and Mullen, G. J. 2008. Soil quality and barley growth as influenced by the laud application of two compost types. Bioresource Technology 99: 2913-2918.

9. Dick, W. A., and Tabatabai, M. A. 1993. Significance and potential uses of soil enzymes. In: Metting, F.B. (Ed.), Soil Microbial Ecology: Application in Agricultural and Environmental Management. Marcel Dekker, New York: 95-125.

10. Esfandiary Ekhlas, E. S. 2016. Effect of different tillage systems, cover crop and intercropping on some of soil quality indicators in Dastjerd region, Hamadan. MS Thesis. Bu-Ali Sina University, Hamedan. (in Persian with English abstract).

11. Garand, M. J., Simard, R. R., MacKenzie, A. F., and Hamel, C. 2001. Underseeded clover as a nitrogen source for spring wheat on a gleysol. Canadian Journal of Soil Science 81: 93-102.

12. Hiltbrunner, J., Streit, B., and Liedgens, M. 2007. Are seeding densities an opportunity to increase grain yield of winter wheat in a living mulch of white clover. Field Crops Research 102: 163-171.

13. Hooker, K. V., Coxon, C. E., Hackett, R., Kirwan, L. E., O’Keeffe, E., and Richards, K. G. 2008. Evaluation of cover crop and reduced cultivation for reducing nitrate leaching in Ireland. Journal of Environmental Quality 37: 138-145.

14. Hu, C., and Cao, Z. 2007. Size and activity of the soil microbial biomass and soil enzyme activity in long-term field experiments. World Journal of Agricultural Sciences 1: 63-70.

15. Iran Weather. 2014. Retrieved august 20, 2016, from http://www.accuweather.com/en/ir/iran-weather.

16. Isik, D., Kaya, E., Ngouajio, M., and Mennan, H. 2009. Weed suppression in organic pepper (Capsicum annum L.) with winter cover crops. Crop Protection 28: 356-363.

17. Jahan, M., Amiri, M. B., Aghhavari Shajari, M., and Tahami, M. K. 2013. Investigation of the pumpkin (Cucurbita pepo L.) production quantity and quality influence by Lathyrus sativus and Trifolium resopinatum cover crops, inoculation with plant growth stimulating rhizobacteria and application of organic fertilizers. Iranian Journal of Field Crops Research 11 (2): 337-356. (in Persian).

18. Jahan, M., Nasiri Mahalati, M., Salari M. D., and Ghorbani, R. 2010. The effects of the use of manure and application of biofertilizers on qualitative and quantitative characteristics pumpkin (Cucurbita pepo L.). Iranian Journal of Field Crops Research 8 (4): 726-737. (in Persian with English abstract).

19. Khorrami Vafa, M. 2007. Ecology study of maize and pumpkin (Cucurbita pepo) intercropping. Ph.D Thesis. University of Tabriz, Iran.

20. Kocheki, A. R., and Banayan aval, M. 1994. Physiology of crop yield (translation). Jahad Daneshgahi of Mashhad. Iran. (in Persian).

21. Larkin, R. P., Griffin, T. S., and Honeycutt, C. W. 2010. Rotation and cover crop effects on soil borne potato diseases, tuber yield, and soil microbial communities. Plant Disease 94: 1491-1502.

22. Liebman, M., and Davis, A. S. 2000. Integration of soil, crop and weed management in low external- input farming system. Weed Research 40: 27-47.

23. Limon Ortega, A., Sawyer, K. D., Drabber, R. A., and Francis, C. A. 2002. Soil attributes in a furrow irrigated bed plaiting system in north. West Mexico. Soil and tillage Research 63: 123-132.

24. Mafakheri, S., Ardakani, M. R., Meighani, F., Mirhadi, M. J., and Vazan, S. 2010. Rye cover crop management affects weeds and yield of corn (Zea mays L.). Notulae Botanicae Horti Agrobotanici Cluj-Napoca 38: 117-123.

25. Mitchell, J. P., Shrestha, A., Mathesius. K., Scow. K. M., Southard, R. J., Haney, R. L., Schmidt, R., Munk, D. S., and Horwath, W. R. 2017. Cover cropping and no-tillage improve soil health in an arid irrigated cropping system in California’s San Joaquin Valley, USA. Soil & Tillage Research 165: 325-335.

26. Omidi, H., Tahmasebi Sarvestani, Z., Ghalavand, A., and Modarres Sanavi, S. A. M. 2006. Evaluation of tillage systems and row distances on grain yield and oil content in two canola (Brassica napus) Cultivars. Iranian Journal of Crop Sciences 7 (2): 97-112. (in Persian with English abstract).

27. Putnam, D. H., Oplinger, E. S., and Hicks, D. R. 2003. Alternative field crops manual sunflower cultural, seedbed preparation. University of Wisconsin. Madison.

28. Radicetti, E., Mancinelli, R., Moscetti, R., and Campiglia, E. 2016. Management of winter cover crop residues under different tillage conditions affects nitrogen utilization efficiency and yield of eggplant (Solanum melanogena L.) in Mediterranean environment. Soil & Tillage Research 155: 329-338.

29. Ramroudi, M., Majnoun Hosseini, N., Hosseinzadeh, A. H., Mazaheri, D., and Hosseini, M. B. 2011. Evaluating the effects cover crops, tillage systems and nitrogen rates on soil properties and sorghum forage yields. Agronomy Journal (Pajouhesh & Sazandegi) 92: 18-23. (in Persian with English abstract).

30. Safari Sinegani, A. A. 2014. Soil Biology and Biochemistry. Bu-Ali Sina University Publication, (in Persian).

31. Sainju, U. M., and Singh, B. P. 2001. Tillage, cover crop, and kill-planting date effects on corn yield and soil nitrogen. Agronomy journal 93: 878-886.

32. Samadani, B., and Montazeri, M. 2009. The use of cover crop in sustainable agriculture. Iranian Research Institute of Plant Protection Press. 186 pp. (in Persian).

33. Samara, N. H., and Ahmad, T. 2007. The effect of tillage practices on Barely production under rainfed conditions in Jordan. American-Eurasian. Journal of Agriculture and Environmental Science 2 (1): 75-79.

34. Shamabadi, Z. A. 2012. Evaluating reduced tillage methods on energy productivity and rainfed wheat yield. Journal of Soil and Water Conservation 1 (3): 69-78. (in Persian).

35. Singh, M. J., and Khera, K. L. 2009. Physical indicators of soil quality in relation to soil erodibility under different land uses. Arid Land Research and Management 23: 152-167.

36. Steenwerth, K., and Belina, K. M. 2008. Cover crops enhance soil organic matter, carbon dynamics and microbiological function in a vineyard agroecosystem. Applied Soil Ecology 40: 359-369.

37. Suivan, P., and Diver, S. 2001. Overview of cover crops and green manures fundamentals of sustainable agriculture. NCAT Agriculture Specialist.

38. Sun, L., Wangb, S., Zhangb, Y., Lib, J., Wangb. X., Wangb, R., Lyub, W., Chenb, N., and Wangb, Q. 2018. Conservation agriculture based on crop rotation and tillage in the semi-arid Loess Plateau, China: Effects on crop yield and soil water use. Agriculture, Ecosystems and Environment 251: 67-77.

39. Tabatabai, M. A. 2003. Enzymes: past, present and future. Second international conference on enzyme in the environment: Activity, Ecology and Application. Prague, Czech Republic. 14-17.

40. Tabatabai, M. A., and Bremner, J. M. 1969. Use of p-nitrophenylphosphate for assay of soil phosphatase activity. Journal of Soil Biology and Biochemistry 1: 301-307.

41. Uhart, S. A., and Andrade, F. H. 1995. Nitrogen deficiency in maize: I. Effects on crop growth development dry matter partitioning, and kernel set. Crop Science 35: 1376-1383.

42. Wang, X. B., Oenema, O., Hoogmoed, W. B., Perdok, U. D., and Cai, D. X. 2006. Dust storm erosion and its impact on soil carbon and nitrogen losses in northern China, Catena 66: 221-227.

43. Yenish, J. P., Worsham, A. D., and York, A. C. 1996. Cover crops for herbicide replacement in no-tillage corn. Weed Technology 10: 815-821.