scholarly journals Multifunctional Slow-Release Organic−Inorganic Compound Fertilizer

2010 ◽  
Vol 58 (23) ◽  
pp. 12373-12378 ◽  
Author(s):  
Boli Ni ◽  
Mingzhu Liu ◽  
Shaoyu Lü ◽  
Lihua Xie ◽  
Yanfang Wang
Keyword(s):  
Slow Release ◽  
Inorganic Compound ◽  
Compound Fertilizer

Effect of slow-release compound fertilizer on nitrogen nutrient in soil and rye-grass

2010 ◽  
Vol 18 (5) ◽  
pp. 929-933 ◽  
Author(s):  
Hong-Xia ZHU ◽  
Yan DONG ◽  
Zheng-Yin WANG
Keyword(s):  
Slow Release ◽  
Rye Grass ◽  
Compound Fertilizer

Preparation and properties of a slow release NP compound fertilizer with superabsorbent and moisture preservation

2005 ◽  
Vol 96 (6) ◽  
pp. 2132-2138 ◽  
Author(s):  
Mingyu Guo ◽  
Mingzhu Liu ◽  
Zheng Hu ◽  
Falu Zhan ◽  
Lan Wu
Keyword(s):  
Slow Release ◽  
Compound Fertilizer

scholarly journals Assessment of productivity, nutrient uptake and economic benefits of rice under different nitrogen management strategies

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9596
Author(s):  
Guoying Yang ◽  
Hongting Ji ◽  
Hongjiang Liu ◽  
Yuefang Zhang ◽  
Liugen Chen ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nutrient Uptake ◽  
Management Strategies ◽  
Economic Benefits ◽  
Inorganic Compound ◽  
N Fertilizer ◽  
Utilization Efficiency ◽  
Compound Fertilizer ◽  
Use Efficiency ◽  
N Management

Background Integrating a chemical nitrogen (N) fertilizer with an organic fertilizer and using slow-release mechanism are important N management strategies to increase the N utilization efficiency (NUE) and grain yield of rice. However, the performances of both N management strategies on the productivity, the nutrient absorption and utilization efficiency, and the economic benefits of rice have not yet been comprehensively evaluated. Methods A 2-year field experiment was conducted with seven N management strategies without fertilizer (control), 100% conventional N fertilizer (conventional compound fertilizer and urea) (N100), 75% conventional N fertilizer with 25% organic–inorganic compound fertilizer (N75+OICF25), 50% conventional N fertilizer with 50% organic–inorganic compound fertilizer (N50+OICF50), 100% organic–inorganic compound fertilizer (OICF100), slow-release compound fertilizer with urea (SRCF+U), compound fertilizer with sulfur-coated urea (CF+SCU). The responses of the productivity, the nutrient absorption and utilization efficiency, and the economic benefits of rice to the different N management strategies were evaluated. Results CF+SCU performed comparably or better than N100, judging by the grain yield (GY), the N, phosphate (P) and potassium (K) agronomic efficiency (NAE, PAE and KAE), and the apparent N, P and K recovery efficiency (ANRE, APRE and AKRE). SRCF+U significantly increased the GY by an average of 7.7%, the NAE and the ANRE by 23.8 and 26.7%, the PAE and the APRE by 90.6 and 109.3%, and the KAE and the AKRE by 74.2 and 57.7%. The higher GY and nutrient utilization efficiency when using SRCF+U were attributed to the higher total biomass and total nutrient absorption. N75+OICF25 and N50+OICF50 produced a comparable grain yield than N100, whereas a significant yield reduction was observed when using OICF100. Compared with N100, N75+OICF25 resulted in a comparable or higher fertilizer use efficiency (0.3 and 4.7% for NAE and ANRE, 0.3 and 3.2% for PAE and APRE, 0.3 and −2.8% for KAE and AKRE). However, the fertilizer use efficiency when using N50+OICF50 and OICF100 were lower than with N100. The highest net return (NR) (5,845.03 yuan ha−1) and benefit to cost (B:C) ratio (0.34) were obtained when using SRCF+U. The NR and the B:C ratio when using N75+OICF25 were slightly higher than when using N100. However, N50+OICF50 and OICF100 significantly decreased the NR and the B:C ratio compared with N100 by 14.5 and 12.1% and by 35.1 and 29.0%, respectively. Conclusions SRCF+U and CF+SCU enhanced the crop productivity, the nutrient uptake and utilization efficiency, and the economic benefits compared with N100. The comprehensive performance of SRCF+U was better than that of CF+SCU. N75+OICF25 produced almost similar productivity, nutrient uptake and use efficiency compared with N100. It demonstrated that N75+OICF25 stabilized the grain yield production of rice and reduced the input of chemical N fertilizer.

scholarly journals Effects of different fertilizer ratio on senescence of flag leaf in winter wheat

2020 ◽  
Vol 49 (1) ◽  
pp. 85-90
Author(s):  
Yafei Wang ◽  
Yan Shi
Keyword(s):  
Winter Wheat ◽  
Water Retention ◽  
Slow Release ◽  
Flag Leaf ◽  
High Yield ◽  
Flag Leaves ◽  
Slow Release Fertilizer ◽  
Compound Fertilizer ◽  
Mda Content ◽  
Use Efficiency

In order to increase the fertilizer use efficiency, the effects of different ratio of slow-release fertilizer, water retention agent and compound fertilizer in wheat production on senescence of flag leaf in winter wheat had been studied. The results showed that, water retaining agent 15 kg/ha with slow-release fertilizer 324 kg/ha and compound fertilizer 324 kg/ha (T2) effectively maintained the activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) activity and soluble protein content in wheat flag leaves after flowering, and reduced the malondialdehyde (MDA) content which could delay the flag leaves senescence and gain high yield in wheat.

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