Wheat cropping systems and technologies in China

Wang, Fahong; He, Zhonghu; Sayre, Ken D.; Li, Shengdong; Si, Jisheng; Feng, Bo; Kong, Lingan

doi:10.1016/j.fcr.2008.12.004

Cited by 131 publications

(93 citation statements)

References 17 publications

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“…The reasons for this include the following: 1) the soil contained 17 g kg -1 of organic matter (Table 1), and 24 kg ha -1 of N were added at sowing with an additional 100 kg ha -1 as the top dressing; 2) the plants exhibited high N concentrations during development, approximately 60 g kg -1 at tillering, more than 15 g kg -1 at flowering and approximately 25 g kg -1 in the grains (Tables 3 and 4); approximately 20 g kg -1 in the flag leaf at flowering and approximately 23 g kg -1 in the grain are considered to be adequate (Lopez-Bellido et al, 2004); 3) for most of the characteristics, the treatments did not differ from the control; and 4) all of the plots were lodged due to the rainfall at the end of August and the beginning of September (Figure 1), a common occurrence in winter cereal crops, such as wheat, under high doses of N (Wang et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

Yield and Nitrogen Recovery of Wheat Plants Subjected to Urea Application With or Without a Urease Inhibitor in the Absence of Irrigation

et al. 2016

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The use of urease inhibitors and irrigation are management options to increasing the efficiency of top-dressed urea by reducing NH 3 volatilization. The purpose of this study was to evaluate the productive performance and N recovery of 'BRS 254' wheat plants without irrigation after applying urea or urea+NBPT [N-(n-butyl)thiophosphoric triamide] as the top dressing. The experiment was carried out in Viçosa, MG, Brazil, between May and September of 2008 using a complete randomized block design with a 2×6+1 factorial arrangement of the following treatments: 1) urea or urea+NBPT, 2) six periods without irrigation (0, 48, 96, 144, 192 or 240 h after applying the top-dressing fertilizer), and 3) a control without N; there were four replications. The data were subjected to an analysis of variance (P≤0.05). The mean values of the treatments with urea or urea+NBPT were compared by Tukey's test (P≤0.05), and the effects of the periods without irrigation were analyzed by a regression (P≤0.05). The results of the study show that NBPT did not lead to agronomic advantages for the wheat crop under the study conditions, and the absence of irrigation after urea application as the top dressing led to less N utilization by the wheat plants.

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Section: Resultsmentioning

confidence: 99%

Yield and Nitrogen Recovery of Wheat Plants Subjected to Urea Application With or Without a Urease Inhibitor in the Absence of Irrigation

et al. 2016

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“…Weight -TKW (2005-2009 In these experiments, it was observed that yields of winter wheat showed a tendency to decrease with the increasing intensity of tillage. This might be caused by a very good establishment of the crop even in variants with reduced tillage because of small amounts of post-harvest residues of pea forecrop and a better hydraulic condition of soil due to a lower intensity of soil processing.…”

Section: Eff Ect Of Tillage On Winter Wheat Yieldsmentioning

confidence: 96%

Effect of different tillage intensity on yields and yield-forming factors in winter wheat

Houšť

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Hledík

2013

Acta Univ. Agric. Silvic. Mendelianae Brun.

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HOUŠŤ, M., PROCHÁZKOVÁ, B., HLEDÍK, P.: Eff ect of diff erent tillage intensity on yields and yield-forming factors in winter wheat. Acta univ. agric. et silvic. Mendel. Brun., 2012, LX, No. 5, pp. 89-96 The paper presents results of a study on application of minimum tillage technologies when growing winter wheat. Experiments were performed in the sugar-beet-growing region with loamy chernozem within the period of [2005][2006][2007][2008][2009]. Aanalysed and evaluated were eff ects of diff erent methods of soil processing on yield-forming factors in stands of winter wheat grown a er three diff erent preceding crops (i.e. alfalfa, maize for silage and pea). Evaluated were the following four variants of tillage: The eff ect of diff erent tillage intensity on winter wheat yields was statistically non-signifi cant a er all forecrops. A er alfalfa, the highest and the lowest average yields were recorded in Variant 2 (i.e. with ploughing to the depth of 0.15 m) and Variant 3 (direct sowing into the untilled soil), respectively. A er maize grown for silage, higher yields were obtained in Variant 2 and Variant 1 (conventional ploughing) while in Variants 4 and 3 the obtained yields were lower. When growing winter wheat a er pea as a preceding crop, the highest and the lowest average yields were recorded a er direct sowing (Variant 3) and in Variant 1 (i.e. ploughing to the depth of 0.22 m), respectively. Results of studies on eff ect of diff erent tillage technologies on yields of winter wheat crops indicate that under the given pedological and climatic conditions it is possible to apply methods of reduced tillage intensity. However, the choice of the corresponding technology must be performed with regard to the type of preceding crop.tillage, winter wheat, yields, yield-forming factors Tillage and soil processing belong to those basic agrotechnical measures that signifi cantly contribute to yield formation of cultivated fi eld crops. The mechanical processing of soil is also an important tool when controlling or killing weeds, pests and plant diseases. The main task of tillage is to create favourable conditions for growth and development of plants and for a proper course of various processes taking place in soil. The mechanical processing changes the generall physical condition of soil, which determines aeration of soil and also its hydraulic, thermal and biological properties. Opinions concerning proper methods and technologies of soil processing are continuously developing and changing.Nowadays, technologies of minimum tillage are considered worldwide as an important alternative of conventional methods of soil processing based on ploughing. In the Czech Republic, research studies on the application of minimum and zero tillage technologies have a long-standing tradition. The most important expansion and application of these technologies took place a er the year 1990 and it is estimated by many experts that at present they are used on more than 40 % of arable land. Main reasons of this expansion and develop...

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“…Indeed, Chinese food production has developed rapidly since the 1950s, with e.g. wheat yields rising sixfold with increased irrigation and fertiliser use and adoption of improved crop varieties and modern technologies (Wang et al 2009).…”

Section: Actions To Ease Gbw Scarcitymentioning

confidence: 99%