نتایج جستجو برای: crop growth rate 508 g m

تعداد نتایج: 2485230  

2009
R J Haslam J C S Allison

A sugarcane (Saccharum sp.) crop, planted shortly before mid-summer, produced about 7 000 g of above-ground dry matter rrrby the time it was harvested, 56 weeks later; of this total 32% consisted of sucrose, 41 % of other stem material, 10% of green leaflaminae and sheaths, and 17% ofdead leaves. Number of tillers increased to 23 m? at week 18, then fell to a final number of 14m? by week 32. Le...

Journal: :journal of agricultural science and technology 2011
h. miranzadeh y. emam h. seyyed s. zare

the impact of climate change in the next few decades will increase risks of wheat production under dryland conditions. therefore, it is important to find cultivars that are tolerant to these conditions and can provide reasonable yield under future climates. radiation use efficiency (rue) is the key factor determining the crop yield and is related to crop biomass and leaf area index (lai). t...

2017
Gireesh M. Ankad Jagadishchandra Hiremath R.T. Patil H.J. Pramod Harsha V. Hegde

BACKGROUND 'Vrikshayurveda', an ancient science of plant life described by Surapala, has clearly outlined a systematized agricultural practice that insisted on the use of Kunapa jala (KJ) and Pancha gavya (PG) to enhance the yield and quality of plants. OBJECTIVE An experiment was conducted to evaluate the effect of KJ and PG on growth, physiological, biochemical, quality attributes and yield...

BACKGROUND: Polyacrylamide is the main synthetic polymer used, and it absorbs water through the formation of hydrogen bonds. Super Absorbent Polymer (SAP) can absorb water up to 200-400 times its weight and increase its size by up to 100 times. OBJECTIVES: Evaluate effect of different irrigation regime and super absorbent polymer on agrop...

2014
Rizwan Yaseen Jamil Shafi Waqas Ahmad Muhammad Shoaib Rana Muhammad Salim Saeed Ahmad Qaisrani

A field experiment was conducted to study the effect of deficit irrigation and mulch levels on soil physical properties and growth and yield of maize crop. The experiment comprised of two irrigation levels, i.e. I1: 558.8 mm and I2: 711.2 mm while two mulch levels, i.e. M0: no mulch and M15: 15 Mg ha. Soil samples were collected from 0-10, 10-20, and 20-30 cm depths before sowing and at crop ha...

H. Khara K. Zolfinejad Y. Filizadeh

The present study was carried out to examine 6 plants including aquatic and terrestrial plants on food preference and growth of grass carp. 7 experimental treatments with three replicates were considered. The experimental treatments were ponds containing T1: M. spicatum, T2: C. demersum, T3: A. filiculoides, T4: L. minor, T5: C. dactylon, T6: M. sativa and T7: M. Spicatum + C. demersum + A. fil...

Journal: :تولید گیاهان زراعی 0

in order to evaluate the interference effect natural population weeds and plant density, an experiment with randomized complete block design in factorial arrangement with 4 replications was conducted in 2006 in a field experiment at ramin agricultural and natural resources university, khouzestan. treatments included two factor, plant density of corn at three levels (4, 7 and 10 plants m-2) and ...

Introduction: Salinity is a basic non-living environmental factor that reduces the yield worldwide. In arid and semi-arid regions, the salinity of water and soil limits crop production. Therefore, it is crucially important to assess the salinity tolerance of medicinal herbs if they are to be cultivated in saline areas. Materials and Methods: To investigate the effect of water salinity and so...

Journal: :پژوهش های حبوبات ایران 0
کمال حاج محمدنیا قالی باف فریده سادات حسینی احمد نظامی مهدی پارسا

introduction lentil with about 28 percent protein occupies the second after soybean. it is one of the major crops in developing countries as a complement to cereals and is an excellent source of protein and amino acids in the diet. results of studies shown that for most crops, including lentil, the occurrence of drought stress in some phenology stages cause irreparable damages to yield. therefo...

D.K. Singh, T.B.S. Rajput

Subsurface drip irrigation is defined as application of water below the soil surface through emitters, with discharge rates generally in the same range as surface drip irrigation. It has many advantages over surface drip. To see the response of subsurface drip irrigation on okra yield, a study was conducted at Indian Agricultural Research Institute, New Delhi, India during 2003 and 2004. Okra (...

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