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Fixed positional study on basic cropping system of paddy field in the downland region in the south of Sichuan 1. Evaluation to the different patterns of double cropping system in paddy fields
1987
Zheng Qingxi | Wang Yingbing | Zhu Yongchan (Sichuan Provinocial Academy of Agricultural Sciences, Luzhou (China). Inst. of Rice and Sorghum)
Relationship between the shift of the rice blast races and the breakdown of resistant cultivars
1987
Feng Daigui | Peng Guoliang | Lu Qingming (Sichuan Provincial Academy of Agricultural Sciences, Chengdu (China). Inst. of Rice and Sorghum)
Evaluation of herbicide tolerance of corn inbred lines.
1987
Wych R.D. | Schoper J.B.
Development of export markets for corn and sorghum.
1987
Stolte D.
Selection for cold and freeze tolerance in corn: evaluations of original and selected populations.
1987
Gardner C.O. | Thomas Compton M.A. | Gocken T.L. | Eichelberger K.D.
Grain sorghum production and breeding: historical perspectives to future prospects.
1987
Kramer N.W.
Resistance of corn inbred lines to Fusarium and Fusarium toxins.
1987
Hart L.P. | Casale W.L. | Gendloff E. | Rossman E. | Isleib T.
Nitrogen from Soybean for Dryland Sorghum
1987
Gakale, L. P. | Clegg, M. D.
Crop and soil data were collected for 2 yr (1984–1985) from a soybean [Glycine max (L.) Merr.]-grain sorghum [Sorghum bicolor (L.) Moench] rotation experiment established in 1974, to evaluate the residual effects of soybean on N uptake, some agronomic characters, and yield of the sorghum crop and residual soil N accumulation. The soil at the experimental site was a Sharpsburg silt clay loam (fine, montmorillonitic, mesic Typic Argiudoll). Fertilizer rates of 0, 56, 112, and 168 kg N ha⁻¹ were applied to the sorghum crop in both the continuous sorghum and rotation cropping sequences. Total N uptake by sorghum was significantly increased by rotation cropping (P<0.05) when the N fertilizer rate was 112 kg ha⁻¹ or less. Sorghum grown in rotation or with the application of 56 kg N ha⁻¹ or more flowered 6.1 days earlier than continuously grown sorghum without N. At the zero level of fertilizer N, sorghum after soybean yielded 85% more grain than did continuous sorghum. Rotation with soybean increased subsequent sorghum grain 14% compared to continuous sorghum when averaged over 2 yr. At or above the 112 kg N ha⁻¹ level, differences between the cropping systems were not different. Estimates of residual soil N as NO⁻₃−N in 1985 showed that after soybean there was 50 to 60 kg N ha⁻¹ more than after continuous sorghum when 56 kg N ha⁻¹ or less had been applied.
Показать больше [+] Меньше [-]Palatability and chemical composition of sorghum (Sorghum) foggage.
1987
Goto M. | Nishijima A. | Goto T. | Morita O.
