Intensive annual crop production and root development in a tropical acid soil under long-term no-till and soil-amendment management

2018 ◽  
Vol 69 (5) ◽  
pp. 488 ◽  
Author(s):  
Claudio H. M. da Costa ◽  
Antonio C. A. Carmeis Filho ◽  
Carlos A. C. Crusciol ◽  
Rogério P. Soratto ◽  
Tiara M. Guimarães

In tropical conservation agricultural systems, crop yield is limited by soil acidity and root-growth inhibition, especially under intensive crop rotation. This study evaluated the effect of surface applications of lime and phosphogypsum in improving soil fertility and crop yield in a tropical region. Four treatments were evaluated: control (without soil amendment); and application phosphogypsum (2.1 + 2.1 + 2.1 Mg ha–1), lime (2.7 + 2.0 + 2.0 Mg ha–1), and a combination of lime and phosphogypsum at the given rates, applied in 2002, 2004 and 2010, respectively. We evaluated the soil chemical properties, root development, plant nutrition, yield components and grain yield of 10 crops over 4 years using five species: maize (Zea mays), crambe (Crambe abyssinica), cowpea (Vigna unguiculata), wheat (Triticum aestivum) and common bean (Phaseolus vulgaris). Our long-term results demonstrate the benefits of surface liming in alleviating subsoil acidity, reducing Al3+ toxicity, improving availability of Ca2+ and Mg2+, and increasing accumulation of soil organic matter in all soil profiles at depths up to 0.60 m. For maize and crambe, adding phosphogypsum increased development of plants and reproductive structures, which increased grain yield. Phosphogypsum exhibited synergistic effects in association with lime for maize and common bean. Phosphogypsum did not have an effect on cowpea and wheat, whereas surface liming was essential to improve plant nutrition, grain yield and wheat grain quality. The combination of both soil amendments is an important tool to reduce the soil acidification process, resulting in the highest levels of Ca2+ and Mg2+ and the highest base-saturation values in the topsoil layers (0–0.20 m) over time. Our long-term results showed the viability of surface liming plus phosphogypsum for improving tropical soil fertility, which can reflect an increase in grain yield and contribute to the sustainability of agricultural systems under intensive land use in highly weathered areas.

2006 ◽  
Vol 34 (1) ◽  
pp. 151-154 ◽  
Author(s):  
Katalin Debreczeni ◽  
Sándor Hoffmann ◽  
Katalin Berecz

2021 ◽  
Vol 128 ◽  
pp. 126308
Author(s):  
João William Bossolani ◽  
Carlos Alexandre Costa Crusciol ◽  
José Roberto Portugal ◽  
Luiz Gustavo Moretti ◽  
Ariani Garcia ◽  
...  

2017 ◽  
Vol 5 (1) ◽  
pp. 42-50
Author(s):  
Nabin Rawal ◽  
Rajan Ghimire ◽  
Devraj Chalise

Balanced nutrient supply is important for the sustainable crop production. We evaluated the effects of nutrient management practices on soil properties and crop yields in rice (Oryza sativa L.) - rice - wheat (Triticum aestivum L.) system in a long-term experiment established at National Wheat Research Program (NWRP), Bhairahawa, Nepal. The experiment was designed as a randomized complete block experiment with nine treatments and three replications. Treatments were applied as: T1- no nutrients added, T2- N added; T3- N and P added; T4- N and K added; T5- NPK added at recommended rate for all crops. Similarly, T6- only N added in rice and NPK in wheat at recommended rate; T7- half N; T8- half NP of recommended rate for both crops; and T9- farmyard manure (FYM) @10 Mg ha-1 for all crops in rotation. Results of the study revealed that rice and wheat yields were significantly greater under FYM than all other treatments. Treatments that did not receive P (T2, T3, T7, T8) and K (T2, T4) had considerably low wheat yield than treatments that received NPK (T5) and FYM (T9). The FYM lowered soil pH and improved soil organic matter (SOM), total nitrogen (TN), available phosphorus (P), and exchangeable potassium (K) contents than other treatments. Management practices that ensure nutrient supply can increase crop yield and improve soil fertility status.Int. J. Appl. Sci. Biotechnol. Vol 5(1): 42-50


2010 ◽  
Vol 58 (3) ◽  
pp. 239-251
Author(s):  
Z. Berzsenyi ◽  
G. Micskei ◽  
I. Jócsák ◽  
P. Bónis ◽  
E. Sugár

Research indicates that there is considerable potential for a successful switch from high chemical use to lower-input, more sustainable farming practices for maize. The overall objective of the MicroMaize project was to field-test the performance of innovative microbiological management strategies. The effect of microbial consortia on maize growth and grain yield was studied in 2008 and 2009 at Martonvásár (Hungary) in a 50-year-old long-term fertilisation experiment. The experiment was set up in a split-plot design with four replications. The main plots were the fertilisation treatments: A: control, without fertilisation (N 0 P 0 K 0 ), B: N 50 P 24 K 43 , C: N 100 P 48 K 87 , D: N 200 P 96 K 174 , E: N 300 P 144 K 261 . Three microbial inoculation treatments were the sub-plots: C0: control, no microbial consortia, C1: A. lipoferum CRT1 + P. fluorescens Pf153 + G. intraradices JJ 129 , C2: A. lipoferum CRT1 + P. fluorescens F113 + G. intraradices JJ129 . The results indicated that the microbial consortia had no significant effect on maize growth and yield. In the ecophysiological analyses, the microbial consortia were found to have a significant positive effect on the chlorophyll content and on the protein and nitrogen contents of the grain yield in 2009. The long-term results revealed that the mineral fertilisation treatments and the year had a significant influence on the growth, yield and grain quality parameters of maize. The effect of nutrient supplies and year during the vegetative growth phase of maize could be quantified using the mean values of the absolute growth rate (AGR) for maize shoots and roots and with the nutrient stress index calculated from AGR. Further field investigations on productivity and eco-physiological parameters will be needed to estimate the effect of microbial consortia.


1996 ◽  
Vol 76 (4) ◽  
pp. 559-571 ◽  
Author(s):  
P. R. Poulton

Maintaining soil fertility and sustaining or increasing crop yield is of worldwide importance. Many factors impact upon the complex biological, chemical and physical processes which govern soil fertility. Changes in fertility caused by acidification, declining levels of organic matter, or P and K status may take many years to appear. These properties can in turn be affected by external influences such as atmospheric pollution, global change, or changes in land management practice. Long-term experiments provide the best practical means of studying changes in soil properties and processes and providing information for farmers, scientists and policy makers. This paper shows how the experiments run at Rothamsted in southeast England continue to provide data which are highly relevant to today's agriculture and wider environmental concerns. Examples are given of how crop yield is affected by soil organic matter, by pests and disease and by P nutrition. The effect of atmospheric pollution on soil acidity and the mobilization of heavy metals are also examined. The need for making better use of existing long-term experiments is stressed. Key words: Soil fertility, sustainability, long-term experiments, global change


CATENA ◽  
2016 ◽  
Vol 137 ◽  
pp. 87-99 ◽  
Author(s):  
Carlos A.C. Crusciol ◽  
Angela C.C.A. Artigiani ◽  
Orivaldo Arf ◽  
Antonio C.A. Carmeis Filho ◽  
Rogério P. Soratto ◽  
...  

2020 ◽  
Vol 5 (01) ◽  
pp. 31-39
Author(s):  
Attia El Gayar

Plant nutrition balance plays a major role in the universal need to increase food production to meet the demands of the growing world population. Fertilizer application resulted in marked crop yield increases, which for most crops were more than hundred. The extent to which fertilizers are used still differs considerably between various regions of the world. Soil nutrient status is widely constrained by the limited use of inorganic and organic fertilizers and by nutrient loss mainly due to erosion and leaching. Many small holder farmers do not have access to synthetic fertilizer because of high price of fertilizers, lack of credit facilities, poor distribution, and other socio-economic factors. Consequently, crop yields are low, in fact decreasing in many areas, and the sustainability of the current farming system is at risk. Therefore, the aim of this review was to review the role of integrated Plant nutrition balance management for improving crop yield and enhancing soil fertility under small holder farmers in dry areas, and recommend the appropriate approaches for enhancing soil fertility and increasing crop yield for small holder farmers in dry and semi-dry areas. These are the key challenges of adoption in the scaling up of such alternative soil fertility management practices to millions of small-scale farmers. There is a need, therefore, for research and extension to sort out issues of adoption and scaling up of the available options. In order to address soil fertility problems, potential synergies can be gained by combining technical options with farmers’ knowledge as well as training of farmers and development agent on new soil fertility management approaches. So, the results of this review showed that, the integrated application of organic and inorganic fertilizers improve productivity of crops as well as the fertility status of the soil. The reasons for this are many, which include access or availability of inputs, use of organic resources for other purposes in place of soil fertility, nutrient balancing, collecting, transporting and management of organic inputs and economic returns of investments.


Soil Research ◽  
2021 ◽  
Author(s):  
Gabriel Barth ◽  
Lenir Fátima Gotz ◽  
Nerilde Favaretto ◽  
Volnei Pauletti

Author(s):  
Xiao-Fei Li ◽  
Zhi-Gang Wang ◽  
Xing-Guo Bao ◽  
Jian-Hao Sun ◽  
Si-Cun Yang ◽  
...  
Keyword(s):  

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