Effects of “Mountain” Type Formula Fertilization Technology Application on Rice
0
Citation
0
Reference
20
Related Paper
Abstract:
In order to verify application effects of type of formula fertilization for rice, field tests were carried out. The results showed that the rice yield of Mountain type formula fertilization was higher than that of other fertilization treatments. The plant height, spike length, filled grain number and grain weight were also better than those of other fertilization treatments. Compared with the conventional fertilization treatment, the yield of mountain type formula fertilization increased by 4.29%-5.51%, and the increased output value was 1 579.5-1 903.5 yuan/hm2.Cite
Effects of nitrogen(N) fertilization on yield and dry matter content of the high quality rice,Tianyou 3301,were studied.The results showed that the grain yield correlated to N application.The optimal N application was determined to be 205.06 kg·hm-2 for the highest yield of 10 350.83 kg·hm-2.The economical N application was 192.70 kg·hm-2 that would provide an estimated yield of 10 341.37 kg·hm-2.To produce 100 kg of the grains,the highest and the most economical N application rates were 1.98 and 1.86 kg,respectively.An optimum N application could produce more and bigger spikes,more total spikelets per m2 as well as higher seed set than otherwise.Either higher or lower application rate would result in lowered yields.Furthermore,moderate levels of the N fertilization could increase the dry matter productivity during the middle and later growth period,as well as the stored substances accumulated before the heading and the photosynthetic substances produced after the heading.The crop growth rate(CGR) had a linear correlation with the N application in field vegetative growth period.They had a parabolic correlation in the middle and late growth period.Consequently,in order to improve CGR in the middle and late growth period,heavy N fertilization needed to be implemented.
Cite
Citations (0)
In order to explore appropriate maize cultivation techniques in Pu'er,taking Yunrui47,Yunyou105as test material, yield variation of different varieties under different planting density and different fertilization level were studied.The results showed that the yield of different varieties had significant difference,yield of Yunyou105was higher than Yunrui47under the same planting density and fertilization level,planting density of Yunyou105was 82500plants/hm2 and fertilizer level N,P2O5, K2O were 375kg/hm2,225kg/hm2,270kg/hm2 respectively,the yield was highest;Planting density of Yunrui47was 82500 plants/hm2 and fertilizer level N,P2O5,K2O were 375kg/hm2,225kg/hm2,270kg/hm2 respectively,the yield was significantly higher than other treatments.
Cite
Citations (0)
We examined the effect of different foliar fertilization products on the yield and generative factors of maize in 2015. The experiment was set in three repetitions, random blocks on the area of Tangazdaság Ltd. in Hódmezővásárely. The soil of the experiment was meadow chernozem. Soil analysis data showed that it had had good nitrogen, and very good phosphor and potassium contents. During the experiment we applied two times foliar fertilization. The year 2015 was unfavourable for com production. In 2015 the amount of precipitation in the vegetative period of com was lower by 83.4 mm than the average. The average temperature showed a positive deviation compared to the average of several years. We processed the obtained data by single factor variant analysis. The yield of the control treatment was 6.39 t/ha, the yields of the foliar fertilization plots ranged between 6.5-7.5 t/ha. The foliar fertilization products increased the yield of com, but this difference was not significant. By the application of foliar fertilization the generative factors of com did not change significantly.
Chernozem
Cite
Citations (6)
Mineral fertilization is one of the most important components of proper cultivation technology of spring wheat. It actually determines the quantity and quality of grain yield. In 2011-2013 a strict field experiment was carried out which aimed to determine the response of chosen spring wheat cultivars to two NPK fertilization levels. In the research hypothesis it was assumed that varied rates of NPK fertilization will modify the canopy structure, the state of plant nutrition and the quantity and quality of spring wheat grain yield. Two fertilization levels were used: 80 N; 43.6 P and 83 K kg·ha -1 (level I) and 120 N; 65.4 P and 124.5 K kg·ha -1 (level II). The tested cultivars were: Hewilla, Monsun, Nawra, Ostka Smolicka, Waluta, Zadra, Żura. The higher rate of mineral fertilization in comparison with the lower one resulted in a significant increase in SPAD and LAI indices values, whereas it did not modify MTA index. The number of ears per 1 m 2 was higher on treatment with the higher fertilization level as compared with the lower. The obtained difference was significant and on average it amounted to 26 no.·m 2 . The number of grains per ear and TGW were not modified by the fertilization factor. Spring wheat gave the highest yields in 2012 and the lowest in 2013. After the use of the higher fertilization level, the mean grain yield amounted to 5.83 Mg·ha -1 and was significantly higher than on the treatment with the lower fertilization level (4.89 Mg·ha -1 ). Plants of the cultivar Ostka Smolicka were characterized by a significantly higher LAI index in relations to the cultivar Monsun, whereas MTA index was significantly higher in plants of the cultivar Waluta in comparison with the cultivar Żura. The highest value of SPAD index was recorded in plants of the cultivars Hewilla and Ostka Smolicka, and significantly lower in the cultivar Żura. Moreover, a significant difference was indicated in SPAD between the cultivars Nawra and Ostka Smolicka. Plants of the cultivar Waluta lodged significantly heavier than those of the cultivar Nawra. More plump grains were formed by Nawra as compared with Zadra. Ostka Smolnicka was characterized by the highest yield, and Monsun, Nawra and Waluta by significantly lower yields. Also it was
Cite
Citations (5)
Based on the concept of the highest population productivity of nitrogen(N) fertilization,we carried out a field experi-ments with 50 early-maturing late japonica rice varieties which were the representative in the region of Yangtze River,using seven nitrogen applying levels(0,1500,187.5,225.0,262.5,3000,337.5 kg ha 1),to investigate the difference of the most popu-lation productivity of N fertilization in varieties.Its relationships with yield components,plant-type characteristics and nitrogen agronomic efficiency were also analyzed.The main results were as follows:(1) With the basic yield capacity of sandy loam being 6 t ha 1,optimum N levels of 50 tested varieties which were corresponding to their highest population yield converged in the range of 225-300 kg ha 1,while the highest grain yield showed significant differences,varying from 7.42 to 11.02 t ha 1.(2) There was significantly positive correlation between the highest productivity of N fertilization and the total spikelet number,with the correlation coefficient of 0.865.The top-and high-level yielding varieties had extremely significantly larger amount of popu-lation spikelets than the middle-and low-level yielding varieties,and this superiority of total spikelets was mainly due to the ex-tremely remarkable increase of spikelets per panicle.(3) The highest productivity of N fertilizer rose as the high-efficiency leaf area and the weight per panicle increased.Compared with middle-and low-level yielding cultivars,top-and high-level yielding cultivars performed superior plant type characteristics:the plant height ranged from 105-110 cm,the width of basal internodes was circa 0.65 cm,the high-efficiency leaf area index was higher than 5,and panicles were big.(4) Generally speaking,the theo-retical highest population productivity of N fertilization increased with the increasing of corresponding applied N amount.But within each group of similar optimum N level,various rice cultivars produced significantly different grain yields.(5) Taking into consideration of the production capacity and the nitrogen agronomic efficiency of all 50 rice varieties,six varieties with high yield and high efficiency were selected and recommended.
Panicle
Nitrogen fertilizer
Cite
Citations (2)
To assess the compensation effects of input fertilizers on the crop yield and water use efficiency (WUE), two-year experiments of spring wheat planting density and fertilization influence yield formation were conducted in the semiarid field conditions of loess hilly area in Ningxia Uh autonomous region. A comparison of wheat yield and WUE sequences under four planting densities with five fertilization levels shows that maximum yield and highest WUE were achieved under the optimum fertilizer input of 90 kg N and 135 ckg P2O5 per hm2 with 500 seeds/m^2. Increase soil fertilization was positively correlated with grain yield and water use efficiency of spring wheat, with a correlation coefficient were 0.959 and 0.894, planting density, however, showed poor correlation with both. Increasing fertilizer level significantly increased fertile spikelets number, kernels per spike and kernel weight. These components were decreased with the increase in planting density. Fertile spikelets number was sensitive to fertilization, whereas kernel number and weight was mainly affected by plant density. Fertilization applied in spring wheat improved root system development and especially enhanced roots growth in the cultivated soil layer of 0~20 cm. Ameliorated root system was able to improve crop water use and nutrient absorption, and hence, crop yield and water use efficiency was increased. Grain yield of spring wheat was increased by 44.6% and 55.4% when P and P+N +K were applied, respectively. A significant increase in yield was also obtained with N application but not with K. P or P+N promoted spike development and hence, increased seed production. N+P+K improved the quality of seeds, and the content of N, P and K in seed increased by 18.5%, 18.4% and 8.1%, respectively, compared with no nutrient treatment. This study highlights the compensation effects of improving soil fertility to high efficient use of limited water in dry land spring wheat production.
Water Use Efficiency
Water use
Cite
Citations (3)
Synopsis Nitrogen fertilization caused increases in the grain yield, number of culms per plot, plant height, and straw weight of all varieties. None of the varieties showed an effect on the calculated number of kernels per head. The effects of fertilization on 100‐kernel weight, heading date, test weight, and straw‐grain ratio were variable.
Test weight
Nitrogen fertilizer
Cite
Citations (5)
This study was conducted to investigate the effect of site-specific variable fertilization following digital fertility map generated from soil analysis on rice growth and yield. The site-specific application of fertilizer was implemented by using rice transplanter equipped with side dressing applicator and global positioning system (GPS). Coefficient of variation (C.V.) of soil nitrogen content was reduced after the experiment, and spatial variation of semivariogram was reduced. Rice growth from tillering to ripening stage, plant height, tiller and panicle number increased at site-specific variable fertilization treatment, and coefficient variation (C.V.) of each growth characteristics was lower than those of conventional fertilization treatment. As a result, fertility in the rice field was more uniform become of site-specific fertilizer application. Head rice yield of site-specific application plot increased by 9% (i.e., to from 450 kg/10a to 492 kg/10a of the control plot) and its CV was significantly reduced to 3.5 compared to 7.8 of the control plot. In addition, there was no significant difference in amylose, protein contents and whiteness of milled rice, but its CV was reduced.
Panicle
Tiller (botany)
Precision Agriculture
Paddy field
Cite
Citations (0)
In order to optimize the planting density and fertilizer application rate of hybrid rapeseed new variety Ganyouza No.5,which was directly sown,the effects of different planting densities(225000,375000,525000 plants/hm2) and fertilizer application rates(N0,N8,N12,N16) on the yield and yield components were studied through the field plot experiments.The results showed that there was very significant difference in the yield between the fertilization treatments and the control(without fertilization).Under the condition of low and middle planting densities,the yield in treatment N12 was not significantly different from that in treatment N16,but the yield difference between the treatment N12 and N8 was significant.Under the condition of high planting density,high levels of fertilization did not produce high yield,and it even reduced the yield.The yield of rapeseed among different planting density treatments was not obviously different.Therefore,when Ganyouza No.5 was sown during the proper date in Jiangxi,its appropriate application rates of N,P2O5,K2O and borax were 180,90,90 and 16.5 kg/hm2 respectively,and its suitable planting density was 225000~375000 plants per hectare,the higher density was disadvantage to yield increase.
Hectare
Borax
Cite
Citations (0)
[Objective]The aim was to establish the cultivation technology of wheat cultivar Xikemai No. 6 playing excellent characteristics to achieve high yield and high efficiency. [Method]The phosphate and potash fertilization were fixed on the field level,then 10 kinds of nitrogen levels were designed to study the effects of nitrogen on yield and quality of Xikemai No. 6. [Result]Nitrogen had greater effects on leaf chlorophyll content,grain yield,grain crude protein content. Lower or higher nitrogen were not conducive to improve photosynthesis,dry matter accumulation and protein content. At various growth stages of wheat,the leaf chlorophyll content of every treatment were relatively high at the flowering stage and SPAD value were the biggest,210 kg/hm2-nitrogen treatment's SPAD value up to 60. 9 and the photosynthetic efficiency was strong. When the nitrogen fertilization was 210 kg/hm2,leaf SPAD value was bigger at heading stage,flowering stage and early grain filling stage,the grain yield was the highest by 8 237. 25 kg/hm2. When the nitrogen fertilization was 180 kg/hm2,the crude protein content of the grain was the highest by 1 271. 70 kg/hm2. So it was initially identified that the suitable nitrogen levels was 180-210 kg/hm2. By simulation analysis,the best relationship between nitrogen fertilization and grain yield was quadratic equation curve Y = 5 114. 487 + 21. 414X-0. 041X2,R2= 0. 880,and the theoretical yield was 9 721. 779 kg/hm2. The best fitting relationship between nitrogen fertilization and grain crude protein was also quadratic equation curve,Y = 12. 911 + 0. 021X-4. 578E-5X2,R2= 0. 906,the theoretical protein content was 16. 88%. [Conclusion]The study confirms on the best nitrogen fertilization of Xikemai No. 6,which is 180-210 kg/hm2,to obtain the goal of improving yield and protein content,then to provide a help for farmer promoting and utilizing Xikemai No. 6 better.
Cite
Citations (0)